Killer Sunset at The Sisters near Carson Pass
Lake Tahoe to Mount Whitney: Crown Jewel of the Pacific Crest Trail
Need a Map? Lost Al near Lost Keys Lake
Emigrant Wilderness under Tropical Thunderstorm, September.
Round Top Lake
Whitebarks and Grizzly Peak in Emigrant Wilderness under Tropical Clouds during September 2013
Lost Keys Lake
 

Lake Tahoe to Mount Whitney
Trail Guide, Magazine, & High Sierra Backpacker's Trails and Topics Forums

 


HIGH SIERRA BACKPACKER'S

Calendar

 

February
2019

 

 

Important Seasonal Happenings, Transitions, Events, & Dates
for
High Sierra Backpackers

 

 

Road Conditions, Resupply, Seasonal Transition Concerns, Permit Dates, Weather, Water, and Mosquitoes

 

 

Previous Years
2018

2017

 

THIS YEAR
News, Views, & Issues
FEB
2019
High Sierra
News
Winter
of
2018
2019
Natural Meltdown
High Sierra
Backpacking
TOPICS
High Sierra
Backpacking
TRAILS
High Sierra
Backpacking
FITNESS
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Backpacking
SKILLS

High Sierra
RESUPPLY
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PERMITS
High Sierra
WEATHER
High Sierra
Trail
GUIDE
INDEX
High Sierra
Trail
MAPS
INDEX
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Trail
MILES
INDEX
Download
FONT

     
2019
High Sierra
Backpacking Calendar

2019 INDEX

January         February         March         April         May         June

July         August         September         October         November         December

 

February
2019

Week 1

Week 2

Week 3

Week 4

Week 5

TRAILHEAD

Summit City Canyon
Summit City Canyon from Mount Reba.

Backpacking the
UNMAINTAINED TAHOE TO YOSEMITE TRAIL

Above we see the full length of the Tahoe to Yosemite Trail's unmaintained route through Summit City Canyon in the Mokelumne Wilderness laid out at our feet. Note The Sisters in the upper Right hand corner, and Horse Canyon cutting deeply into Summit City Canyon in the upper-middle-left of the image. At the middle-bottom of the image above we can see the stony course of the bottom-end of Summit Creek just above where it enters the North Mokelumne River.

That point is just above where the North Mokelumne Rive begins its passage through its very narrow steep and sheer granite gorge (you gotta read this) just above where it runs past the Enchanted Forest. Below the Enchanted Forest the river runs through an even steeper and deeper cut of the river canyon from the Enchanted Forest to Camp Irene. Camp Irene is where we began this climb to our South up the NW flank of Mount Reba where we get this fantastic view of Summit City Creek's awesome canyon. We can actually see the river-bed rocks cascading down towards Camp Irene in the shot above. See 'em? That's bottom of Summit City Creek just above where it enters the North Mokelumne River.
Below that point we find the steep, deep, and narrow section where the catastrophic Spring Thaw of 1997 pushed up a massive log jam in this bottle-neck of a canyon just above Camp Irene, causing massive destruction in and around the 75 foot deep pool of surging, grinding, smashing timber backed up behind it, which swept away all in its path below it when it finally snapped.

Devastation swept across the landscape and down the river valley which can still be seen and felt today. Less and less each year.

This year's massive rains, snowpack, and thaw activity will further heal those "wounds."

 

UPDATE
Feb 22 2017
This year's vast snowpack may rip the Sierra & most of California a "new one" if present precip trends continue into the rising heat of the Spring Thaw.

Labeled Image

Trail Guide          Map          Miles and Elevations

End of January

February 2019

January       February     March       April       May       June     July     August     September       October       November       December

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

 

 

 

PRECAUTIONS AND OPPORTUNITY
Some backpackers are observing patterns and trajectory of Winter storms and temps to find Hiking Windows into the
Winter Wonderland.

Others are watching the snow activity/pack to determine when the trails will clear enough to begin their Pacific Crest Trail or John Muir Trail backpacking trips.


2019
FULL WINTER CONDITIONS

FEBURARY 1
2019
NORMAL-AVERAGE WINTER SNOW

Potentially
Indicating
a
LATE STARTING SPRING SEASON
for
PCT & JMT HIKERS
So Far...

 

2018
FULL WINTER CONDITIONS

2018:
WINTER COLD

The Fall Gear has long been stowed or complimented by the heavy Gear of Winter.

 

What's Going On?
See
November 28 of 2017 Report:
FULL WINTER GEAR REQUIRED

 

 

WINTER of 2018

2018 UPDATE
Weak Snows on the Mountains!

 


All
High Sierra Weather Info

 



Latest Daily Snow Depth Summary

Daily Sierra Snowpack % of Normal pdf

Daily Snow-Water & Percent of Average

 

All Precipitation-Snow Data

All Snow Surveys

SWC & Snow Depth

 

 

 

 

Summer of 2018 Backpacking Plans?
Yosemite-Hoover-Desolation
&
John Muir Trail Hikers:

 

Time to
Order Next Year's Permits!

Reserved permits for June 2018 now available from Yosemite, Hoover, and Desolation Wilderness Areas. In other words, Yosemite, Desolation, and Hoover Wilderness Areas all offer advanced reservations about six months ahead of your desired hiking dates.

This means now is the time to get your JMT permit application, along with other popular hikes, into the Man.

Feb 18
Last year, during 2017, at this point in time I was estimating a powerful, potentially catastrophic Spring Thaw.

We had snow along the Sierra Crest through the whole Summer. Again, each year's thaw depends on the Winter snowpack against the profile of Spring temps and precip.

 


All Permits

Yosemite Permits         Desolation Wilderness

 

 

All Snow Information

December
Road News & Status Links

29 JAN

 

Cloudy-Misty
Misty mild instability
warm

Jan 28
Snowpack Averages

 

 

 

 

LAST MONTH

NEXT WEEK

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30 JAN

 

Cloudy-Misty
Misty mild instability
warm

Weak Front Should
Come Onshore Tonight

Overnight Showers

 

HAZARDS

 

 

Before PM Showers:

2019
HIGH SIERRA
--Winter--
12th
Temp-Snow Check

Last Report:
26th

Next Report:
February 4th, 2019

Let's check our reporting station snow & temp readings aftert the last day and a half days of misting. This evening should bring some precip...

Click the stations below for the latest reports.

The Storm expected over the weekend is potentially moderate to strong.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

 

A NEW WATER YEAR: Reservoirs

Noon readings:
Still coming down!

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Rubicon 47" -3.0
7618 feet
(17.60 H2O) -0.1
45 & 33 -/-

Echo Peak 63" =00"
7652 feet
(27.00 H2O) =0.0
45 & 34 -/-

American-Yuba Watersheds

Carson Pass 60" -2
8388 feet
(18.3" H2O) +0.1
46 & 28 +/-

Carson-Walker
Watershed
s

Ebbetts Pass 66" =0"
8660 feet
(26.40" H2O) +0.1
48 & 28 -/-

Leavitt Lake 95" -1
9602 feet, East Flank
(27.60" H20) +5.3 ??
40 & 27 -/-

Marine Base
6748 feet East Flank
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
70 & 29
+/+

Mokelumne-Stanislaus Watersheds

Deadman Creek 15.79" -0.67
9250 feet, West Flank
(11.30" H20) -0.87"
40 & 18 -/-

Tuolumne-Merced
Watersheds

Tenaya Lake 62.19"
-62.19"
8163 feet, West Flank
(6.10") H20 =00
46 & 21 -/-

Tuolumne Meadows
8600 feet, West Flank
46.81" -2.68"
(6.41") H20 +0.58"
46 & 17 -/-

Tioga Pass/Dana
9798 feet
48.97" -2.99
10.14" H20 (−0.27) ??
41 & 18 -/-

Mammoth Mountain

Mono Lake-Owens Basin

Gem Pass
10750 feet
SNO " Depth Suspect
(16.38) H2O) -0.2
temps bad

Mammoth Pass
9500 feet
80.17" Snow −2.14
25.12" H2O) -1.64
42 & 24 -/-

South Lake Cabin
9580 feet, East Flank
(Snow removed ")
(22.50 H2O) =0.0 suspect
41 & 18 -/-

Big Pine Sawmill
10200 feet, East Flank
33.90" Snow -0.6"
36 & 16 -/-

Kings River

Bishop Pass
11972 feet
BAD-
BAD

Charlotte Lake
10398 feet, West Flank
50.33" Snow -1.18
29.26 H2O +0.18
36 & 19 -/-
(The coldest station)

Kern Watershed

Upr Tyndall Creek
11441 feet
59.43" -3.17"
(x.xx" H2O +x.xx")
39 & 20 -/-
(station reporting again!)

Crabtree Meadow
10,700 feet
19.40" Snow -1.6"
(6.76 H2O) -0.1 (suspect)
37 & 18 -/-

All High Sierra
Reporting Stations

6 Days of steady warming clarity,
A Big High built-in for six days. Weak Offshore Low today, with weak trop moisture, off coast, but High keeping it offshore, moving onshore this evening?


31 JAN

 

Overcast
Diminishing Showers
mild instability
warm

 

 

All
High Sierra Weather
And the factors creating it

Roads

All Radar

 

Winter Storm Warnings

All Sierra Forecast Zones

All Precip Forecasts


!!

SEASON-NORMAL SNOW

2019
Current Snowpack:
Percent of Average for
January 31.

N Sierra: 100%
-6% in 3 days!!

Cen. Sierra:102%
-4% in 3 days!

S Sierra: 97%
-4% in 3 days!

Ca State: 100%
-5% in 3 days!

Last Reading
January 28

Next Reading
Feb 4

Last Year, Today...
Below

Statewide Summary of Snow Water Content PDF

 

 

 

THE
CURRENT SNOWPACK

GRAPHICS

Date-Adjustable Multi-Aspect High Sierra Snowpack Status
THE FIRST

 

GRAPHICS

NOAA-NOHRSC
The High Sierra
2-1-19

 

SATELLITE SKY EYES

MODIS
High Sierra Satellite View

 

 

REPORTING
STATIONS

NEW
Temp & Snow Tables
by Watershed and Highway Corridor

 

Also See
All High Sierra Snowpack Data

 

 

 

 

 

 

2018
Snowpack:

Percent of Average for
January 31.
(Change since Jan 26.)

N Sierra: 29%
(+2%)

Cen. Sierra: 35%
(+0%)

S Sierra: 21%
(-3%)

Ca State: 30%
(+0%)

Last
Jan 26, 2018

Statewide Summary of Snow Water Content PDF

Next
February 24

1 FEB

 

Impending Storms
Anticipated PM

 

HAZARDS

 

Donner Summit
Weather Forecast
Calendar

 

MOUNTAIN
Winter Storm Warning
4 PM Friday to 10 PM Mon

 

 

 

Informative
"Normal" Vs. Now

Forcasts & Reality
vs.
Averages

 

 

 

All High Sierra
ZONE
FORECASTS

 

All High Sierra
POINT
FORECASTS

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

Top

 

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temps

2

 

Moderate Precip
Virtually None in
Sierra Last Night

Most of these Fronts have been Moving South to North..mostly past the Sierra.

HEAVY TODAY?
Front approaches Sierra
10 AM PST

Steady Late PM Precip

All High Sierra
Reporting Stations

 

BEST
FORECASTS

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS
&
MODELS

 

Winds? Weather?

NorCal Graphics

SoCal & SW US

 

Temperatures

Model
Five Day Mean
Low Temps

NEW
Day 3-7 Forecast
Minimum Temps

 

Let's look at the
Big Picture

The Pacific Ocean

Set this for 14 days
&
Display Loop Below

 

US Weather Map

 

All Maps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

Top

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

3

Steady
Light-Moderate Precip: AM
Steady
Moderate-Heavy
Precip: PM

 

LAST WEEK

NEXT WEEK

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Feb 3
Report
Winter of 2018

2018 Calendar
First Week Feb

2018
Snowpack:

Percent of Average for
February 3.
(Change since Jan 31.)

N Sierra: 27%
(-2%)

Cen. Sierra: 30%
(-5%)

S Sierra: 25%
(+4%)

Ca State: 27%
(-3%)

Last
Jan 31, 2018

Statewide Summary of Snow Water Content PDF

(2018: Drought emerging during midwinter!)

 

2017 Calendar
First Week Feb

2017
Current Snowpack:
Percent of Average for
February 3.

N Sierra: 145%

Cen. Sierra: 174%

S Sierra: 198%

 

Ca State: 171%

Statewide Summary of Snow Water Content PDF

 

 

February 2016
A Very Hot Winter

4

Steady
Moderate-Heavy
Precip: AM

Tapering-Off into PM

 

A Very
COLD
&
SNOWY
Last Night

HEAVY SNOWFALL

Winter Storm Warning
CALENDAR

Winter Storm Warning
TEXT

HEAVY
OVERNIGHT

ACCUMULATION

+3 Foot Average?

All Forecasts

!!

ABOVE-AVERAGE SNOW

2019
Current Snowpack:
Percent of Average for
February 4.

N Sierra: 107%
+7% in 4 days!!

Cen. Sierra:117%
+15% in 4 days!

S Sierra: 119%
+22% in 4 days!

Ca State: 115%
+15% in 4 days!

Last Reading
January 31

Last Year
Left

Statewide Summary of Snow Water Content PDF

 

View of Sierra
on
FEB 4 2017
by...
MODIS
SIERRA SATELLITE

 

 

2019
HIGH SIERRA
--Winter--
13th
Temp-Snow Check

Last Report:
January 30th, 2019

Next Report:
February 6th, 2018

Let's check our reporting station snow & temp readings aftert the last couple of days of Moderate to Heavy precip.

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

 

A NEW WATER YEAR: Reservoirs

9 AM Reading
Still coming down!

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Rubicon 73" +26
7618 feet
(20.40 H2O) +2.8
32 & 24 -/-

Echo Peak 90" +27"
7652 feet
(28.80 H2O) +1.8
31 & 23 -/-

American-Yuba Watersheds

Carson Pass 97" +37
8388 feet
(20.80" H2O) +2.5
30 & 23 +/-

Carson-Walker
Watershed
s

Ebbetts Pass 95"+29"
8660 feet
(30.50" H2O) +4.1
28 & 21 -/-

Leavitt Lake 143" +48
9602 feet, East Flank
(29.60" H20) +2
26 & 18 -/-

Marine Base
6748 feet East Flank
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
57 & 31
+/-

Mokelumne-Stanislaus Watersheds

Deadman Creek 39.49" +23.7
9250 feet, West Flank
(13.38" H20) +2.08"
24 & 16 -/-

Tuolumne-Merced
Watersheds

Tenaya Lake 110.70"
+48.51"
8163 feet, West Flank
(6.11") H20 +0.0 ??
31 & 23 -/+

Tuolumne Meadows
8600 feet, West Flank
117.70" +70.89" ?!
(6.41") H20 = 0.00" ??
31 & 19 -/+

Tioga Pass/Dana
9798 feet
93.40" +44.43
10.14" H20 (=0.00) ??
25 & 16 -/-

Mammoth Mountain

Mono Lake-Owens Basin

Gem Pass
10750 feet
xxx.xx" Snow bad
(22.27) H2O) +5.89 ?
temps bad

Mammoth Pass
9500 feet
130.07" Snow +49.9
28.12" H2O +3.0
24 & 17 -/-

South Lake Cabin
9580 feet, East Flank
(Snow removed ")
(23.30 H2O) +0.8
24 & 16 -/-

Big Pine Sawmill
10200 feet, East Flank
69.00" Snow +35.1"
20 & 14 -/-

Kings River

Bishop Pass
11972 feet
BAD-
BAD

Charlotte Lake
10398 feet, West Flank
95.17" Snow +44.84
32.95 H2O +3.69
21 & 14 -/-
(The coldest station)

Kern Watershed

Upr Tyndall Creek
11441 feet
81.61" +22.18"
(x.xx" H2O +x.xx")
22 & 12 -/-
(station reporting again!)

Crabtree Meadow
10,700 feet
54.77" Snow +35.37"
(9.72 H2O) +2.96
(suspect)
24 & 14 -/-

All High Sierra
Reporting Stations

2 Days of steady Moderate to Heavy Precip, continuing through this 9am reading,.
The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks.

 

 

2018

DROUGHT CONDITIONS EMERGE IN MID-WINTER

United States Drought Monitor: West

High Sierra Weather Page
Drought & Flood

 

5

Clear-Clearing




COLD
Hazard

 

HAZARDS

Roads

 

 

 

 


Check below yesterday's temps for
2018
Drought Report




!!

ABOVE-AVERAGE SNOW

2019
Current Snowpack:
Percent of Average for
February 5 .

N Sierra: 111%
+4% in 1 day!!

Cen. Sierra:128%
+11% in 1 day!!

S Sierra: 133%
+14% in 1 day!!

Ca State: 125%
+10% in 1 day!!

Last Reading
January 31

Last Year
Left

Next Reading
Feb 11

Statewide Summary of Snow Water Content PDF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2016
5
RECORD
AND
NEAR RECORD

HIGH TEMPS

Great
Northeast Pacific Highs
deflecting weak storms OUT OF THE SW around the Sierra.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bookends of Extremity
2015 & 2017

Driest Year in History?
2015

2015 was the driest year in my life observing the Sierra, California, Nevada, and the Southwest, and likely across all of modern history, requiring a punch deep back into Ancient history to find its equal.

I had just started keeping the calendar in 2015, and did not specifically start noting the lack of snow across February, not until March, and we can see how it was ALL gone by the First of May.

2015
Earliest
PCT Launch EVER

Bloom was resupplying PCT hikers in May, 2015, unprecedentedly early.

Extremes

2015 was an extreme example of a West Coast Drought during these drying and warming times.

2017
WETTEST YEAR
LATEST
PCT LAUNCH EVER

The incredible dryness of 2015 was quickly followed by the deluges of 2017, which presented us with a three year streak where we recorded both the wettest and driest years in modern history within a rapid three-year succession.

What does This Mean
in
2019 ?

These recent-past extremes are indicative of a system, more specifically, our region of the planatary weather system, that's out of, "wack."

Extremes
are the
New Normal

I'd say we are still looking at a system that will continue to produce extreme results, as the ancient balances that centered and held the range of our traditional weather patterns continue to break down from the inside-out, and the outside-in.

Not only are extreme events possible, they have become likely.

6

Clear

 

COLD
Hazard

 

Extreme Overnight
Cold Temperatures

 

 

 

 

LAST WEEK

NEXT WEEK

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temps

 

 

 

 

 

 

 

 

 

 

2019
HIGH SIERRA
--Winter--
14th
Temp-Snow Check

Last Report:
Feb 4th, 2019

Next Report:
February 9, 2018

Let's check our reporting station snow & temp readings aftert the last four days of Moderate to Heavy precip.

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Rubicon 83" +10
7618 feet
(22.20 H2O) +1.8
20 & 13 -/-

Echo Peak 105 " +15"
7652 feet
(29.30 H2O) +0.5
20 & 9 -/-

American-Yuba Watersheds

Carson Pass 94" -3
8388 feet
(20.70" H2O) -0.1
19 & 10 -/-

Carson-Walker
Watershed
s

Ebbetts Pass 104"+9"
8660 feet
(32.50" H2O) +2.0
23 & 5 -/-

Leavitt Lake 152" +9
9602 feet, East Flank
(30.00" H20) +.4
19 & 3 -/-

Marine Base
6748 feet East Flank
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
45 & -4
-/-

Mokelumne-Stanislaus Watersheds

Deadman Creek 41.58" +2.09
9250 feet, West Flank
(14.91" H20) +1.53"
6 & -12 -/-

Tuolumne-Merced
Watersheds

Tenaya Lake 119.50"
+8.8"
8163 feet, West Flank
(6.11") H20 +0.0 ??
30 & 21 -/-

Tuolumne Meadows
8600 feet, West Flank
100.30" -17.4" ?!
(6.41") H20 = 0.00" ??
31 & -20 -/-

Tioga Pass/Dana
9798 feet
100.70" +7.3
10.14" H20 (=0.00) ??
18 & -14 -/-

Mammoth Mountain

Mono Lake-Owens Basin

Gem Pass
10750 feet
147.20"
(23.98) H2O) +1.71
temps bad

Mammoth Pass
9500 feet
145.15" Snow +15.08
28.16" H2O +0.04
21 & -6 -/-

South Lake Cabin
9580 feet, East Flank
(Snow removed ")
(23.40 H2O) -4.76
26 & -11 +/-

Big Pine Sawmill
10200 feet, East Flank
67.80" Snow -1.2"
18 & -13 -/-

Kings River

Bishop Pass
11972 feet
BAD-
BAD

Charlotte Lake
10398 feet, West Flank
103.88" Snow +8.71
35.04 H2O +2.09
10 & -16 -/-
(The coldest station)

Kern Watershed

Upr Tyndall Creek
11441 feet
92.09" +10.48"
(x.xx" H2O +x.xx")
15 & -9 -/-
(station reporting again!)

Crabtree Meadow
10,700 feet
49.74" Snow -5.03"
(10.51 H2O) +0.79
(suspect)
14 & -14 -/-

All High Sierra
Reporting Stations

4 Days of steady Moderate to Heavy Precip, continuing through mid-day yesterday,.
The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks.

 

 

 

 

 

7

Clouding
Outer Bands of Weak Low Approaching from NW

COLD
Hazard

 

THE
CURRENT SNOWPACK

GRAPHICS

Date-Adjustable Multi-Aspect High Sierra Snowpack Status
THE SIXTH

 

GRAPHICS

NOAA-NOHRSC
The High Sierra
2-6-19

 

 

All
Snow Information

 

All
High Sierra
Reporting Stations

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
Snow & Temp Report

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

Top

 

 

8

Weak Low off SF
Front Arriving PM

HIGH SIERRA
Winter Storm Warning
Through Weekend

Carson Pass
Calendar

Text

 

Snow-Rain
Precip Forecasts

Animations, Charts, Models

 

All
High Sierra
Forecast Zones

 

All
High Sierra
Reporting Stations

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
No information about a 2017 ADZPCTKO

2017
PM:
Big Tropical Flow out of
SW hits the Coast of Ca.

PM:
Raining across
Sierra Crest
Most stations above freezing to 40 degrees

ALL STORMS THIS SEASON HAVE COME OUT OF THE WEST & SOUTHWEST: Warm Storms...

Oroville Dam Crisis News

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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9

Continuing
Light to Moderate Precip

HIGH SIERRA
Winter Storm Warning
Through Weekend

Calendar

Text

COLD
Hazard

 

HAZARDS

Roads

 

The Sierra
on
FEB 9 2018
by...

MODIS
SIERRA SAT

 

 

 

 

 

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NEXT WEEK

 

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2019
HIGH SIERRA
--Winter--
15th
Temp-Snow Check

Last Report:
Feb 6th, 2019

Next Report:
February 10, 2018

Let's check our reporting station snow & temp readings aftert the last full day of Light to Moderate precip.

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Rubicon 85" +5
7618 feet
(23.20 H2O) +1.0
26 & 22 +/+

Echo Peak 105" =0"
7652 feet
(32.90 H2O) +3.6
25 & 21 +/+

American-Yuba Watersheds

Carson Pass 98" +4
8388 feet
(23.00" H2O) +2.3
24 & 19 +/+

Carson-Walker
Watershed
s

Ebbetts Pass 103"-1"
8660 feet
(32.80" H2O) +0.3
23 & 18 =/+

Leavitt Lake 154" +2
9602 feet, East Flank
(30.70" H20) +.7
18 & 16 -/+

Marine Base
6748 feet East Flank
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
58 & -10
+/-

Mokelumne-Stanislaus Watersheds

Deadman Creek 35.53" -6.05
9250 feet, West Flank
(15.18" H20) +0.27"
20 & 3 +/+

Tuolumne-Merced
Watersheds

Tenaya Lake 122.40
+2.9"
8163 feet, West Flank
(6.28") H20 +0.17 ??
29 & -13 -/-

Tuolumne Meadows
8600 feet, West Flank
94.70" -5.6"
(6.42") H20 +0.02" ??
25 & -14 -/+

Tioga Pass/Dana
9798 feet
96.80" -3.9
10.16" H20 (+0.02) ??
17 & 0 -/+

Mammoth Mountain

Mono Lake-Owens Basin

Gem Pass
10750 feet
151.20" +4
(24.38) H2O) +0.4
temps bad

Mammoth Pass
9500 feet
144.86" Snow -0.29
28.16" H2O =0.00
24 & 3 +/+

South Lake Cabin
9580 feet, East Flank
(Snow removed ")
(23.70 H2O) +0.30
24 & 10 -/+

Big Pine Sawmill
10200 feet, East Flank
64.80" Snow -3"
20 & 9 +/+

Kings River

Bishop Pass
11972 feet
BAD-
BAD

Charlotte Lake
10398 feet, West Flank
99.59" Snow -4.29
35.82 H2O +0.78
16 & -2 +/+
(The coldest station)

Kern Watershed

Upr Tyndall Creek
11441 feet
90.59" -1.5"
(x.xx" H2O +x.xx")
19 & 5 +/+
(station reporting again!)

Crabtree Meadow
10,700 feet
46.39" Snow -3.35"
(11.08 H2O) +0.57
(suspect)
22 & -2 +/+

All High Sierra
Reporting Stations

1 Day of steady Light to Moderate Precip, continuing through this evening.
The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks.

 

 

 

 

2016
Record Level Temps

High Heat and Humidity...

Plum and Cherry trees blossoming at Sea Level.

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

10

Clear Bits
Clearing & Cloudy

A Break in the Action

WEAK LOW
Passing to Southeast

Precip
Stopped or Diminishing

HIGH SIERRA
Winter Storm Warning
RESCENDED
Through Remainder
of
Weekend

Carson Pass Calendar

Text

 

HAZARDS

Roads

 

East Sierra
Winter Storm Warning
Continues

Bridgeport Calendar

 

COLD
Hazard

 

 

 

 

 

 

 

 

 

 

 

 

 

2019
FEB 10
HIGH SIERRA

--Winter--
16th
Temp-Snow Check

Last Report:
Feb 9th, 2019

Next Report:
February 14, 2018

Let's check our reporting station snow & temp readings aftert the last full day & a half of Light to Moderate precip.

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

PCT-TYT
Rubicon
95" +10
7618 feet
(24.30 H2O) +1.1
24 & 14 -/-

PCT-TYT
Echo Peak
119"
+14"
7652 feet
(35.30 H2O) +2.4
23 & 13 -/-

American-Yuba Watersheds

PCT-TYT
Carson Pass
102" +4
8388 feet
(23.9" H2O) +0.9
21 & 11 -/-

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
115"
+12"
8660 feet
(32.70" H2O) -0.1
20 & 11 -/-

EAST FLANK
Leavitt Lake
172"
+18
9602 feet, East Flank
(30.70" H20) =.0
19 & 8 -/-

EAST FLANK
Marine Base

6748 feet East Flank
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
58 & -10
(same)

Mokelumne-Stanislaus Watersheds

PCT-TYT
Kennedy Meadows
RESUPPLY
Deadman Creek
34.16" -1.35 (dated)
9250 feet, West Flank
(15.18" H20) =0.00"
15 & 6 -/+

Tuolumne-Merced
Watersheds

Tenaya Lake 132.20
+9.8"
8163 feet, West Flank
(6.29") H20 +0.07 ??
28 & 16 -/+

JMT-PCT-TYT
Tuolumne Meadows

8600 feet, West Flank
117.70" +23 "
(6.42") H20 =0.00" ??
26 & 12 +/+

Tioga Pass/Dana
9798 feet
104" +7.2
10.16" H20 (=0.00) ??
17 & 6 =/+

Mammoth Mountain

Mono Lake-Owens Basin

Above June Lake
Gem Pass

10750 feet
149.6" −1.6
(25.83) H2O) +1.45
temps bad

 

 

 


Near JMT-PCT
Mammoth Pass

9500 feet
157.66" Snow +12.8
28.16" H2O =0.00
19 & 11 -/+

 

 

 

 

East Flank
South Lake Cabin

9580 feet, East Flank
(Snow removed ")
(23.70 H2O) =0.00
24 & 11 =/+

East Flank
Big Pine Sawmill

10200 feet, East Flank
68.10" Snow +3.3"
17 & 8 -/-

Kings River

Just East JMT-PCT
Bishop Pass

34.80 first report !!
11972 feet
BAD-
BAD

Just West JMT-PCT
Charlotte Lake

10398 feet, West Flank
107.77" Snow +8.18
36.33 H2O +0.51
15 & 7 -/+
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

11441 feet
97.79" +7.2"
(x.xx" H2O +x.xx")
17 & 5 -/+
(station reporting again!)

JMT
Crabtree Meadow

10,700 feet
49.92" Snow +3.53"
(11.32 H2O) +0.24
17 & -3 -/-

All High Sierra
Reporting Stations

1.5 Day of steady Light to Moderate Precip, and I would not be surprised if light precip continues to this evening.
The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks.

 

2018
Snow Depths & Temps

11

Clear & Cool

 

 

!!

ABOVE-AVERAGE SNOW

2019
Current Snowpack:
Percent of Average for
February 11.

N Sierra: 112%
+1% in 6 days!!

Cen. Sierra:135%
+7% in 6 days!!

S Sierra: 138%
+5% in 6 days!!

Ca State: 129%
+4% in 6 days!!

Last Reading
Feb 5

Compare with record year of 2017,
Above & Last Year ----->

Statewide Summary of Snow Water Content PDF

 

 

 

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12

Clouding-Up
Anticipating Late PM
Precip

 

 

 

 

 

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2018
Snow Depths & Temps

2018
Snowpack:

Percent of Average for
February 12.
(Change since Feb 3.)

N Sierra: 17%
(-10%)

Cen. Sierra: 24%
(-7%)

S Sierra: 17%
(-10%)

Ca State: 17%
(-13%)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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13

Tropical Rains
Moderate to Heavy
Precip

AM-PM
REPORTS

Some
Rain Falling High-Up

 

HAZARDS

Roads

 

Donner Summit Calendar

Carson Pass Calendar

 

About
TTMs
Tropical Transport Mechanisms

TTM
FORECASTS

Seven Day TTM Landfall

TPW
Total Precip Water

HEAVY PRECIP

2019
Current Snowpack:
Percent of Average for
February 13.

N Sierra: 115%
+3% in 2 days

Cen. Sierra:134%
-1% in 2 days!

S Sierra: 137%
-1% in 2 days

Ca State: 130%
+1% in 2 days

Last Reading
Feb 11

Compare with record year of 2017, Above
<----- & Last Year

Statewide Summary of Snow Water Content PDF

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

Valentine's Day

Tropical Rains
Moderate to Heavy
Precip

Rain Across Crest

 

Snow Probabilities

Snow Models

THE
CURRENT SNOWPACK

GRAPHICS

Date-Adjustable Multi-Aspect High Sierra Snowpack Status
THE 14TH

 

GRAPHICS

NOAA-NOHRSC
The High Sierra
2-14-19


HEAVY PRECIP

2019
Current Snowpack:
Percent of Average for
February 14.

N Sierra: 124%
+9% in 1 day

Cen. Sierra:139%
+5% in 1 day

S Sierra: 142%
+5% in 1 day

Ca State: 136%
+6% in 1 day

Last Reading
Feb 13

Compare with record year of 2017, Above
<----- & Last Year

Statewide Summary of Snow Water Content PDF

2019
FEB 14
HIGH SIERRA

--Winter--
17th
Temp-Snow Check

Last Report:
Feb 10th, 2019

Next Report:
February 15, 2018

Let's check our reporting station snow & temp readings aftert the last full day of Moderate to Heavy precip.

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Southwest Tahoe
Trail Map with Stations

PCT-TYT
Rubicon
89" -6
7618 feet
Trail Map
(28.10 H2O) +3.8
40 & 28 +/+

PCT-TYT
Echo Peak
113"
-6"
7652 feet
(40.80 H2O) +5.5
40 & 27 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
108" +6
8388 feet
(27.30" H2O) +3.4
36 & 25 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
116"
+1"
8660 feet
(32.70" H2O) =0.0
35 & 25 +/+

EAST FLANK
Leavitt Lake
178"
+2
9602 feet, East Flank
(31.60" H20) +.9
35 & 22 +/+

EAST FLANK
Marine Base

6748 feet East Flank
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
60 & 36
+/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Kennedy Meadows
RESUPPLY
Deadman Creek
48.64" +14.48
9250 feet, West Flank
(18.07" H20) +2.89"
33 & 16 +/+

Tuolumne-Merced
Watersheds

Tenaya Lake 118.80
−13.4"
8163 feet, West Flank
(9.73") H20 +3.44
37 & 22 +/+

JMT-PCT-TYT
Tuolumne Meadows

8600 feet, West Flank
98.60" −19.1 "
(6.42") H20 =0.00" ??
33 & 18 +/+

Tioga Pass/Dana
9798 feet
106.1" +2.1
10.18" H20 (+0.02) ??
33 & 14 +/+

Mammoth Mountain

Mono Lake-Owens Basin

Above Gem Lake
Gem Pass

10750 feet
150.60" +1
(30.12) H2O) +4.29
temps bad

JMT PCT Junction
Devils Postpile

8004 feet
98.72"
(0.0)
39 & 25 /

Near JMT-PCT
Mammoth Pass

9500 feet
152.21" Snow -5.45
28.16" H2O =0.00
31 & 19 +/+

JMT-PCT
E of Bear Ridge
Volcanic Knob

10100 feet
102.6"
(0.00)
30 & 17 /

East Flank
South Lake Cabin

9580 feet, East Flank
(Snow removed ")
(24.30 H2O) +0.6
36 & 19 +/+

East Flank
Big Pine Sawmill

10200 feet, East Flank
74.30" Snow +6.2"
33 & 16 +/+

Kings River

Just East JMT-PCT
Bishop Pass

--.-- first report !!
11972 feet
BAD-
BAD

Just West JMT-PCT
Charlotte Lake

10398 feet, West Flank
107.23" Snow -0.54
39.82 H2O +3.49
29 & 15 +/+
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

11441 feet
96.90" −0.89"
(x.xx" H2O +x.xx")
27 & 9 +/+
(station reporting again!)

JMT
Crabtree Meadow

10,700 feet
52.25" Snow +3.53"
(14.20 H2O) +2.88
28 & 3 +/+

All High Sierra
Reporting Stations

One Day of steady Moderate to Heavy Precip, and I would not be surprised if light precip continues overnight this evening.

15

Tropical Rains
Lite to Moderate Showers

Displaced
by

Cooling
Low from North
Pushing TTM
South

Rain Across Crest

COLD
Hazard

Showers

 

 

Water Info

 

 

 

2019
Current Snowpack:
Percent of Average for
February 15.

N Sierra: 125%
+1% in 1 day

Cen. Sierra:147%
+8% in 1 day

S Sierra: 149%
+7% in 1 day

Ca State: 141%
+5% in 1 day

Last Reading
Feb 14

Next Reading
Feb 19

Compare with record year of 2017, Above
<----- & Last Year

Statewide Summary of Snow Water Content PDF

2019
FEB 15
HIGH SIERRA

--Winter--
18th
Temp-Snow Check

Last Report:
Feb 14th, 2019

Next Report:
February 18, 2018

Let's check our reporting station snow & temp readings aftert the last full day of Moderate to Shower-ing precip.

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Southwest Tahoe
Trail Map with Stations

PCT-TYT
Rubicon
102" +13
7618 feet
Trail Map
(27.90 H2O) -0.2
40 & 19 =/-

PCT-TYT
Echo Peak
129"
+16"
7652 feet
Stations Map
(40.70 H2O) -0.1
27 & 19 -/-

American-Yuba Watersheds

PCT-TYT
Carson Pass
117" +9
8388 feet
(27.20" H2O) -0.1
25 & 18 -/-

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
129"
+13"
8660 feet
(32.30" H2O) -0.4
25 & 17 -/-

EAST FLANK
Leavitt Lake
193"

+15
9602 feet, East Flank
(31.60" H20) =.0
35 & 15 =/-

EAST FLANK
Marine Base

6748 feet East Flank
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
52 & 30
-/-

Mokelumne-Stanislaus Watersheds

PCT-TYT
Kennedy Meadows
RESUPPLY
Deadman Creek
40.05" -8.59 ??
9250 feet, West Flank
(18.13" H20) +0.06"
17 & 11 -/-

Tuolumne-Merced
Watersheds

Tenaya Lake 126.40
+7.6"
8163 feet, West Flank
(9.73") H20 =0.00
37 & 17 =/-

JMT-PCT-TYT
Tuolumne Meadows

8600 feet, West Flank
101.6" +3 "
(6.42") H20 =0.00" ??
21 & 13 -/-

Tioga Pass/Dana
9798 feet
112" +5.9
10.18" H20 (=0.0) ??
30 & 9 -/-

Mammoth Mountain

Mono Lake-Owens Basin

Above Gem Lake
Gem Pass

10750 feet
150.2" -.4
(31.05 H2O) +0.93
temps bad

JMT PCT Junction
Devils Postpile

8004 feet
111.70" +12.98
(0.0) =
26 & 19 -/-

Near JMT-PCT
Mammoth Pass

9500 feet
170.96" Snow +18.75
28.16" H2O =0.00
19 & 12 -/-

JMT-PCT
E of Bear Ridge
Volcanic Knob

10100 feet
106.40" +3.8
(0.00)
21 & 11 -/-

East Flank
South Lake Cabin

9580 feet, East Flank
(Snow removed ")
(24.30 H2O) =0.0
20 & 12 -/-

East Flank
Big Pine Sawmill

10200 feet, East Flank
77.70" Snow +3.4"
17 & 10 -/-

Kings River

Just East JMT-PCT
Bishop Pass

--.-- !!
11972 feet
BAD-
BAD

Just West JMT-PCT
Charlotte Lake

10398 feet, West Flank
113.66" Snow +6.43
40.18 H2O +0.36
17 & 9 -/-
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

11441 feet
107.25" +10.35"
(x.xx" H2O +x.xx")
16 & 7 -/-
(station reporting again!)

JMT
Crabtree Meadow

10,700 feet
52.54" Snow +0.29"
(14.40 H2O) +0.2
18 & 1 -/-

All High Sierra
Reporting Stations

One Day of steady Moderate to Heavy Precip, and I would not be surprised if showers of light precip continues overnight again this evening.

 

2017
Snow & Temp Report

16

Cold Showers
Out of NW

 

COLD
Hazard

Showers

 

HIGH SIERRA
Winter Storm Warning
Through Remainder
of
Tonight

Carson Pass
Forecast Calendar

Donner Summit
Weather Forecast
Calendar

Text

 

Watch It!
California Web Cams

 

HAZARDS

Roads

 

 

All
Snow Information

 

All
High Sierra
Reporting Stations

 

 

 

 

LAST WEEK

NEXT WEEK

 

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BEST
FORECASTS

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS
&
MODELS

Winds? Weather?

NorCal Graphics

SoCal & SW US

 

Temperatures

Model
Five Day Mean
Low Temps

NEW
Day 3-7 Forecast
Minimum Temps

 

Let's look at the
Big Picture

The Pacific Ocean

Set this for 14 days
&
Display Loop Below

 

US Weather Map

 

All Maps

 

 

 

 

Selected
Weather Resources

Surface Low Pressure Tracks

 

Radar

 

Visible Satellites

 

Water Vapor Satellites

 

MAPS

 

Sierra Forecasts

 

Western US Forecasts

 

Precip Animation & Charts

 

Graphical Precip Forecast

 

All Sierra Snow Info

 

Sierra Sensor Networks

 

Watersheds and Selected Network of Crestline Sensors

 

High Sierra Highways

 

All Weather Information

 

 

 

2015 CHANGE POINT

 

 

 

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CCC
Backcountry Trail Crew
APPLICATIONS DUE

 

 

 

 

 

 

 

 

 

 

 

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Sunday Monday Tuesday Wednesday Thursday Friday Saturday

17

Cold Showers
Out of NW

Clearing

 

COLD
Hazard

 

 

LAST WEEK

NEXT WEEK

 

Top

 

 

 

 

Selected
Weather Resources

Surface Low Pressure Tracks

 

Radar

 

Visible Satellites

 

Water Vapor Satellites

 

MAPS

 

Sierra Forecasts

 

Western US Forecasts

 

Precip Animation & Charts

 

Graphical Precip Forecast

 

All Sierra Snow Info

 

Sierra Sensor Networks

 

Watersheds and Selected Network of Crestline Sensors

 

High Sierra Highways

 

All Weather Information

18

Clear & Crisp

PRESIDENT'S DAY

COLD
Hazard

 

HAZARDS

Roads

 

Watch It!
California Web Cams

 

2019
FEB 18
HIGH SIERRA

--Winter--
19th
Temp-Snow Check

Last Report:
Feb 15th, 2019

Next Report:
February 24, 2018

Let's check our reporting station snow & temp readings aftert the previous four days bringing everything from Heavy downpours to light showers.

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Southwest Tahoe
Trail Map with Stations

PCT-TYT
Rubicon
106" +4
7618 feet
Trail Map
(27.70 H2O) -0.2
22 & 13 -/-

PCT-TYT
Echo Peak

142"
+13"
7652 feet
Stations Map
(41.50 H2O) +0.8
24 & 12 -/-

American-Yuba Watersheds

PCT-TYT
Carson Pass
113" -4
(error??)
8388 feet
Trail Map
Stations Map
(27.10" H2O) -0.1
24 & 8 -/-

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
131"
+2
8660 feet
Trail Map
(36.90" H2O) +4.6
20 & 9 -/-

EAST FLANK
Leavitt Lake

186"
-7
9602 feet, East Flank
Trail Map
(31.70" H20) +.1
13 & 4 -/-

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
59 & 18 +/-

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

48.37" +8.32
(ERROR-Corrected)
9250 feet,West Flank,
Trail Map
(18.56" H20) +0.43"
8 & 3 -/-

Tuolumne-Merced
Watersheds

Tenaya Lake
119.50
-6.9"
8163 feet, West Flank
Trail Map
(9.73") H20 =0.00
22 & -5 -/-

JMT-PCT-TYT
Tuolumne Meadows

100" -1.6"
8600 feet, West Flank
Trail Map
(6.42") H20 =0.00" ??
26 & -15 +/-

Tioga Pass/Dana
105.3" -6.7
9798 feet
Trail Map
10.18" H20
(=0.0) ??
15 & -6 -/-

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

148" -2.2
10750 feet
Trail Map
(30.72 H2O) -0.33
temps bad

JMT-PCT Junction
Devils Postpile

109.16" −2.54
8004 feet
Trail Map Above
(0.0) =
19 & 3 -/-

NE of JMT-PCT
Mammoth Pass

167.15" Snow -3.81
9500 feet
Trail Map
28.16" H2O =0.00
26 & 4 +/-

JMT-PCT
E of Bear Ridge

Volcanic Knob

109" +2.6
10100 feet
Trail Map
(0.00)
19 & -9 -/-

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(24.10 H2O) +0.1
25 & -6 +/-

East Flank
Big Pine Sawmill

70.80" Snow −6.9"
10200 feet, East Flank
Trail Map Above
14 & -9 -/-

Kings River

Just East JMT-PCT
Bishop Pass

--.-- !!
11972 feet
Trail Map Above
BAD-
BAD

Just West JMT-PCT
Charlotte Lake

100.33" Snow -13.33
10398 feet, West Flank
Trail Map
40.82 H2O +0.64
12 & -12 -/-
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

103.52" -3.73"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
13 & -8 -/-

JMT
Crabtree Meadow

50.17" Snow -2.37"
10,700 feet
Trail Map
(14.50 H2O) +0.1
11 & -11 -/-

All High Sierra
Reporting Stations

Clarity today, and half of yesterday, after four days of various degrees of precip.

2018
Snow Depths & Temps

2017
Snow & Temp Report

2016
RECORD, or NEAR RECORD HOT TEMPERTURES.
Heat continues since the beginning of the month.

19

Clear & Crisp

 

Burrrr
COLD
Hazard

PM High Cloud Warming

2019
Current Snowpack:
Percent of Average for
February 19.

N Sierra: 127%
+2% in 4 days

Cen. Sierra:154%
+7% in 4 days

S Sierra: 152%
+3% in 4 days

Ca State: 146%
+5% in 4 days

Last Reading
Feb 15

Compare with record year of 2017, Above
& Last Year

Statewide Summary of Snow Water Content PDF

 

 

2017

Yosemite Natural Firefall

History of,...

History
Tourist Fire Version

 

 

 

 

 


 

 

20

High Clouds
&
High Haze

Burrrr
COLD
Hazard

High Cloud Warming

 

 

THE
CURRENT SNOWPACK
GRAPHICS

Date-Adjustable Multi-Aspect High Sierra Snowpack Status
THE 20TH

NOAA-NOHRSC
SNOWPACK

The High Sierra
2-20-19

 

 

2018
Snow Depths & Temps

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

Top

 

21

Clear-Clearing
&
Crisp

 

Informative
"Normal" Vs. Now

Forcasts & Reality
vs.
Averages

 

eulogy
ADZPCTKO

 

 

All
Snow Information

 

All
High Sierra
Reporting Stations

 

 

 

 

2017 Calendar:
The 18th

News of Note
Feb 2017:
Record Precip

Record Snopack

State fully saturated

Oroville Dam Crisis

 

 

 

Feb 2016
Hot & Dry

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

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22

Clear & Crisp

 

Burrrr
COLD
Hazard

 

Updated !
Desolation Snow

 

Deep Snow in the Mountains, Spring on the Horizon...

I'm Pumped. Am I ready?
I Want Skittles!

Navigation
&
Snow

 

 

 

 

2018
Snow Depths & Temps

 

 

BEST
FORECASTS

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS
&
MODELS

Winds? Weather?

NorCal Graphics

SoCal & SW US

 

Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model

NEW
Day 3-7 Forecast
Minimum Temps

Min & Max
Daily
Temperatures

All Temps

 

Let's look at the
Big Picture

The Pacific Ocean

Set this for 14 days
&
Display Loop Below

 

US Weather Map

 

All Maps

 

23

High Clouds
&
High Haze

 

 

 

 

LAST WEEK

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2018
Snow Depths & Temps

 

 

 

 

 

 

 

 

 

 

 

 

2016
Carson Pass
53 & 28 degrees
26 inches

Ebbetts Pass
54 & 33 degrees
63 inches

Sonora Pass
53 & 27 degrees
55 inches

Tuolumne Meadows
55 & 14 degrees
51 inches

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Sunday Monday Tuesday Wednesday Thursday Friday Saturday

24

Lowering Clouds
&
Haze

 

Best
Monthly Analysis

 

 

 

 

 

 

 

 

 

 

 

 

 

2019
FEB 24
HIGH SIERRA

--Winter--
20th
Temp-Snow Check

Last Report:
Feb 18th, 2019

Next Report:
February 27, 2018

Let's check our reporting station snow & temp readings aftert the previous five days bringing clarity (cold temps), and clouds (dry-bit warmer), out of the Northwest. This is different than the TTMs out of the Southwest, that preceeded the shift to the NW...

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Southwest Tahoe
Trail Map with Stations

PCT-TYT
Rubicon
91" -15
7618 feet
Trail Map
(27.40 H2O) -0.3
32 & 17 +/+

PCT-TYT
Echo Peak

123"
-19"
7652 feet
Stations Map
(41.80 H2O) +0.3
31 & 17 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
102"
-11
(error??)
8388 feet
Trail Map
Stations Map
(27.10" H2O) =0.0
33 & 22 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
118"
-13
8660 feet
Trail Map
(37.00" H2O) +0.1
33 & 22 +/+

EAST FLANK
Leavitt Lake

173"
-13
9602 feet, East Flank
Trail Map
(44.8" H20) +13.1 ??
25 & 20 +/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
59 & -6 =/- ??

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

48.02" -0.17 ??
(ERROR-Corrected ??)
9250 feet,West Flank,
Trail Map
(20.20" H20) +1.64"
26 & 18 +/+

Tuolumne-Merced
Watersheds

Tenaya Lake
106.60
−12.9"
8163 feet, West Flank
Trail Map
(10.58") H20 +0.85
38 & 21 +/+

JMT-PCT-TYT
Tuolumne Meadows

90" -10"
8600 feet, West Flank
Trail Map
(6.42") H20 =0.00" ??
36 & 16 +/+

Tioga Pass/Dana
94.10" −11.2
9798 feet
Trail Map
10.19" H20
(+0.01)
28 & 16 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

151.10" -2.2
10750 feet
Trail Map
(30.72 H2O) +3.1
temps bad

JMT-PCT Junction
Devils Postpile

97.64" −11.52
8004 feet
Trail Map Above
(0.0) =
37 & 13 +/+

NE of JMT-PCT
Mammoth Pass

151.55" Snow −15.6
9500 feet
Trail Map
28.16" H2O =0.00
35 & 15 +/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

96.10" −12.9
10100 feet
Trail Map
(0.00)
35 & 11 +/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(24.40 H2O) +0.3
40 & 12 +/+

East Flank
Big Pine Sawmill

66.30" Snow −4.5"
10200 feet, East Flank
Trail Map Above
31 &9 +/+

Kings River

Just East JMT-PCT
Bishop Pass

--.--
11972 feet
Trail Map Above
BAD-
BAD

Just West JMT-PCT
Charlotte Lake

96.82" Snow −3.51
10398 feet, West Flank
Trail Map
40.90 H2O +0.08
28 & 6 +/+
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

96.39" −7.13"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
32 & 13 +/+

JMT
Crabtree Meadow

45.22" Snow −4.95"
10,700 feet
Trail Map
(14.69 H2O) +0.19
32 & 8 +/+

All High Sierra
Reporting Stations

Thickening clouds today, and yesterday, after three days of various degrees of cold clarity.

25

Precip
Approaches

PM PRECIP
TTM out of SW

 

Carson Pass
Winter Storm Warning

 

HAZARDS

Roads

 

2019
Current Snowpack:
Percent of Average for
February 25.

N Sierra: 127%
=0% in 6 days

Cen. Sierra:154%
-6% in 6 days

S Sierra: 144%
-8% in 6 days

Ca State: 146%
-5% in 6 days

Last Reading
Feb 19

Compare with record year of 2017, Above
& Last Year

Statewide Summary of Snow Water Content PDF

 

 

 

LAST WEEK

NEXT MONTH

 

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temps

 

2018
Snowpack:

Percent of Average for
February 22.
(Change since Feb 12.)

N Sierra: 17%
(=)

Cen. Sierra: 23%
(-1%)

S Sierra: 19%
(+2%)

Ca State: 19%
(+2%)

26

Light to Heavy
Precip

TTM out of SW

Forecast Tools

Russian River Flooding

High Sierra
Avalanche Center

Tahoe Region

Central Sierra

East Sierra

 

THE
CURRENT SNOWPACK
GRAPHICS

Date-Adjustable Multi-Aspect High Sierra Snowpack Status
THE 24TH

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
2-24-19

 

All
Snow Information

 

All
High Sierra
Reporting Stations

 

There is a vast storm off the North Coast of Australia, (in the Southern Hemisphere!) that's totally suppressing Westward movement of heat along the Equatorial Band far to the East of Indonesia, which is helping to clog-up, and feed vast amounts of tropical moisture splitting-off up to the Northwest, from Southwest of Hawaii.

This map, when viewed today, shows this vast storm:

Note the Vast Low, off the coast of Australia. That's blocking and feeding the storrm activity we see, the TTM, that's flowing North-West from the Equatorial region hitting us today...

If you look at this, today, you will see that it is nothing short of amazing that the low off Aus is feeding Tropical downpours here!

Fucking A !

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temps

27

Diminishing
Precip

Note N Sierra Focus

2019
Current Snowpack:
Percent of Average for
February 25.

N Sierra: 147%
+20% in 2 days

Cen. Sierra:154%
+0% in 2 days

S Sierra: 146%
+2% in 2 days

Ca State: 151%
+5% in 2 days

Last Reading
Feb 25

Compare with record year of 2017, Above
& Last Year

Statewide Summary of Snow Water Content PDF

 

 

 

2019
FEB 27
HIGH SIERRA

--Winter--
21st
Temp-Snow Check

Last Report:
Feb 24th, 2019

Next Report:
February ?, 2018

Let's check our reporting station snow & temp readings aftert the previous two days bringing a Tropical Transport Mechanism out of the Southwest. This is different than the last storms out of the Northwest, that preceeded this shift to the SW...

Click the stations below for the latest reports.

Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

N Sierra Reporting Stations On a Map
Scroll over stations for snow & temps. Click for
full report.
South Sierra Stations

"+/- & =" below are changes since last reading.

Tahoe Basin
Watershed

Southwest Tahoe
Trail Map with Stations

PCT-TYT
Rubicon
106" +15
7618 feet
Trail Map
(27.80 H2O) +0.4
36 & 30 +/+

PCT-TYT
Echo Peak

134"
+11"
7652 feet
Stations Map
(49.50 H2O) +7.7 ??
35 & 29 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
117" +15
(error??)
8388 feet
Trail Map
Stations Map
(27.50" H2O) +0.4
35 & 27 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
119"
+1
8660 feet
Trail Map
(37.30" H2O) +0.3
33 & 26 =/+

EAST FLANK
Leavitt Lake

182"
+9
9602 feet, East Flank
Trail Map
(49.2" H20) +4.6 ??
25 & 31 =/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
59 & 36 =/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

45.47" -2.55

9250 feet,West Flank,
Trail Map
(20.66" H20) +0.66"
30 & 23 +/+

Tuolumne-Merced
Watersheds

Tenaya Lake
111.40
+4.8"
8163 feet, West Flank
Trail Map
(11.06") H20 +0.48
36 & 26 -/+

JMT-PCT-TYT
Tuolumne Meadows

90.3" +0.3 "
8600 feet, West Flank
Trail Map
(6.43") H20 + 0.01"
40 & 24 +/+

Tioga Pass/Dana
100" +5.9
9798 feet
Trail Map
10.19" H20
(=0.0)
35 & 22 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

152.40" +1.3
10750 feet
Trail Map
(31.32 H2O) +0.6
temps bad

JMT-PCT Junction
Devils Postpile

100.46" +2.82
8004 feet
Trail Map Above
(0.0) =
38 & 27 +/+

NE of JMT-PCT
Mammoth Pass

155.27" Snow +3.72
9500 feet
Trail Map
28.16" H2O =0.00
32 & 21 -/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

97.10" +1
10100 feet
Trail Map
(0.00)
38 & 20 +/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(24.50 H2O) +0.1
38 & 21 -/+

East Flank
Big Pine Sawmill

65.40" Snow −0.9"
10200 feet, East Flank
Trail Map Above
34 & 18 +/+

Kings River

Just East JMT-PCT
Bishop Pass

--.--
11972 feet
Trail Map Above
BAD-
BAD

Just West JMT-PCT
Charlotte Lake

99.67" Snow +2.85
10398 feet, West Flank
Trail Map
41.65 H2O +0.75
32 & 19 +/+
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

96.95" +0.56"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
32 & 20 =/+

JMT
Crabtree Meadow

45.31" Snow +0.09"
10,700 feet
Trail Map
(15.30 H2O) +0.61
35 & 19 +/+

All High Sierra
Reporting Stations

Diminishing Precip , after two days of various degrees of tropical intensity.

28

Broken
Clouds to Clear

More
Tropical Weather
Approaches

 

Selected
Weather Resources

Surface Low Pressure Tracks

 

Radar

 

Visible Satellites

 

Water Vapor Satellites

 

MAPS

 

Sierra Forecasts

 

Western US Forecasts

 

Precip Animation & Charts

 

Graphical Precip Forecast

 

All Sierra Snow Info

 

Sierra Sensor Networks

 

Watersheds and Selected Network of Crestline Sensors

 

High Sierra Highways

 

All Weather Information

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

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1 March

Thickening Clouds
PM Precip Expected

 

2019
Current Snowpack:
Percent of Average for
March 1.

N Sierra: 152%
+5% in 2 days

Cen. Sierra:156%
+2% in 2 days

S Sierra: 147%
+1% in 2 days

Ca State: 153%
+2% in 2 days

Last Reading
Feb 27

Compare with record year of 2017, Above
& Last Year

Statewide Summary of Snow Water Content PDF

 

 

BEST
FORECASTS

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS
&
MODELS

 

Winds? Weather?

NorCal Graphics

SoCal & SW US

 

Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model

 

NEW
Day 3-7 Forecast
Minimum Temps

 

Min & Max
Daily
Temperatures

All Temps

 

Let's look at the
Big Picture

The Pacific Ocean

Set this for 14 days
&
Display Loop Below

 

 

US Weather Map

All Maps

 

2018
Snow Depths & Temps

 

2018
Snowpack:

Percent of Average for
March 1.
(Change since Feb 24.)

N Sierra: 20%
(+3%)

Cen. Sierra: 27%
(+4%)

S Sierra: 22%
(+3%)

Ca State: 24%
(+5%)

Last
Feb 24, 2018

Statewide Summary of Snow Water Content PDF

 

 

2017
Snow Depths & Temps

2017
Current Snowpack:
Percent of Average for
March 1.

N Sierra: 159%

Cen. Sierra: 191%

S Sierra: 201%

 

Ca State: 185%

Statewide Summary of Snow Water Content PDF

Last Reading:
February 3

 

 

February of 2016

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 March

 

 

Updated !
Desolation Snow

 

Deep Snow in the Mountains, Spring on the Horizon...

I'm Pumped. Am I ready?
I Want Skittles!

Navigation
&
Snow

 

 

 

 

 

 

 

 

 

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Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Top of Page

End of Jan

 

2019

January        February       March      April       May      June

July     August     September       October      November      December

 

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 

Classic Feb
NOTES

Short days and long cold nights are the bookends within which we plan our Winter backpacking trips.

High Sierra SNOW trips can be followed up by exciting trips into the moderate Winter Climate of Death Valley. Best time to see DV.

2019

February started strong, with Sierra Snowpack hitting 100% of normal on Jan 31st, and up to 146% by the 19th, and 151% by the 27th!

Feb Snowpack
100% on Feb 1

151% on Feb 27

2019 is pulling within range of the epic snow year of 2017.

A Late PCT-TYT year

 

2018

Feb 3, 27% snowpack

An Early PCT-TYT year

Started with a heat wave, ended with a cold streak Storms in March, and cool weather, saved what would have otherwise been a dreadful water year, improving it up to a very weak year.

 

 

2017

Feb 3, 198% snowpack

March 1, 185% snowpack

A Late PCT-TYT year

This 2017 High Sierra backpacking and backpacker's Calendar notes important hiking dates as our seasons progress to compare current and recent historical weather to determine the best gear for the conditions. We also track the expected against the actual dates our resupply locations and the trans Sierra highways that feed them open and close. We also include permit reservation timing reminder information for those who seek hard to get permits from Yosemite and Hoover Wilderness Areas.

The Seasonal Backpacker

Nature of season.

Seasonal hopes…

If so, our goals, our speed, and our expectations have fully shifted into Winter Mode.

Our changing inner perspective ideally matches external environmental changes.

May your perspective always complement your environment, and visa-versa.

 

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 

The Classic Feb. Question
Piercing Cold this month or just “Normal" Cold?

2016 Answer:
Hot as heck 1st through the 15th. No Cold.

2017 Answer:
Vast Rain and Snowfall from tropical sources typically bring wet, heavy, snow to the Sierra that is subject to chances of of being subjected to rainfall across the Sierra Crest. So it has been during 2017.

Therefore this season could be catagorized as having "warm" Winter conditions, despite the occasional plunges in temps we've seen a couple of times this Winter.

Last year's warmth during Feb was Summer-like, having little resemblence to typical "Wintertime" temps and weather patterns. The Winter heat of 2015 was even more abberent.

This year we are having real Wintertime conditions for the first time since the Winter of 2010-2011, yet this year's temps strike me as being a bit "warm" for typical Winter conditions.

The Classic Feb. Question
Heavy Snow Storms or None at All?

2017 Answer:
Feb. 15 Report
We have gotten pounded with record precip & snow.

Early Implications

1> Not an early start year for PCT-JMT hikers.

2> Potentially dangerous fording and trail conditions Spring & early in Summer.

3> Moist conditions all Summer long feeding mosquitoes all Summer long.

 

2016 Answer:
Feb. 15 Report
No Storms of significance to 15th.
No real storms hitting the Sierra for over two weeks, snow looking funky, coming apart, but high humidity bringing light snow when temps drop...
Snowpack retreating.

2017 Answer:
Adding Complexity
La Nina.

Weakening as of Jan 25. Diminishing, maybe ending...

 

 

 

I am hoping my frostbite/heart is recovered enough to resume my annual Christmas-New Year Snow Camping Triangle at the end of 2016.

From Meyers to Round Lake to Showers Lake to Round Top Lake and back to Meyers is my traditional December 25 Christmas present to myself.

The terrain, the joy of navigation and route finding the snow-covered beauty of the High Sierra during Winter is a special experience well worth the efforts and hazards.

Happy Trails!

Tahoe to Whitney

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January         February         March         April         May         June

July         August         September         October         November         December

 

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 

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Lake Tahoe to Mount Whitney

Your guide to backpacking the Sierra Crest, including the Tahoe to Yosemite, Pacific Crest, and John Muir Trails

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© 2017 Lake Tahoe to Mount Whitney: Crown Jewel of the Pacific Crest Trail