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

 

March
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
2019
High Sierra
News
Winter
of
2019
2019
Natural Meltdown
High Sierra
Backpacking
TOPICS
High Sierra
Backpacking
TRAILS
High Sierra
Backpacking
FITNESS
High Sierra
Backpacking
SKILLS

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


2019
High Sierra
Backpacking Calendar

2019 INDEX

January         February         March         April         May         June

July         August         September         October         November         December

 

March
2019

Week 1

Week 2

Week 3

Week 4

Week 5

Week 6

TRAILHEAD

Round Top
Summit City Canyon from Mount Reba.

ROUND TOP

Gateway to Summit City Creek & the first unmaintained segment of the Tahoe to Yosemite Trail

Trail Guide           Map           Miles and Elevations

 

UPDATE
March 2018
This year's light snowpack may burn the Sierra & most of California a "new one" if present drought precip trends continue into the rising heat of the Spring Thaw.

Labeled Image

Trail Guide          Map          Miles and Elevations

 

End of February

March 2019

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

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

 

LAST MONTH

NEXT WEEK

 

TOP

 

 

When Will the Sierra
"Open?"
Especially
for PCT-JMT Hikers

OBSERVE
The Winter and its Snowpack.
HEAVY? LIGHT?
Character and Sources of Storms?
Are Spring Conditions arriving with Spring?

Snowpack Status            Sierra Reporting Stations

 

 

 

 

Timing
Our Winter-Spring-Summer?
Start Dates
for
PCT-JMT-TWT
Backpacking Trips

2019

March 2019 Trail News

Feb 25
LAST JMT START-DATE ASSESSMENT

 

The
"Spring-O-Meter"

2019 Status of Spring

Define Phenology
Why the National Phenology Network?

Home of NPN

Just how early is spring arriving in your neighborhood? Find out .. .
US GEOLOGICAL SURVEY, February 23, 2017.

WINTER of 2018

All
High Sierra Weather Info

 

2019 SITUATION

Feb-March
2019
Is looking like 2017, "lite."

(2017 was a record level snow year, with no early PCT starts for anyone not with expert snow skills)

FEB 25 2019 PROGRESS REPORT

FEB 13 2019 PROGRESS REPORT

 

Can We See
A
PREVIEW OF THIS YEAR IN 2017?

Danger-Danger!

2017
Backpacker Alert through Spring into Summer!

2019 is working out very much like 2017.
Let's review the Status & Conditions
of
2017:

2017 BACKPACKER ALERT:
April 1 thru August 22, 2017. (coverage to 9-11)

The above was preceeded by the

MARCH 22, 2017 BACKPACKER ALERT

Note the parallels between the Winters of 2017 & 2019, and adjust the expectations of your PCT-JMT High Sierra Backpacking start date accordingly with the conditions...

These Old Alerts appear to apply as much today as they did in 2017.

 

2018
Feb 18, 2018
At this time l ast year, we were wondering if the snowpack would last until June. A cool Spring, with a couple of well-placed storms, barley stretched a thin snowpack into May.

2017
Feb 18, 2017
Two years, during 2017, at this point in time I was estimating the chances of a powerful, hot, tropical Spring storm triggering a potentially catastrophic Spring Thaw on a massive snow pack.

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.



CURRENT SNOW
INFORMATION

Data

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

 

Forecasting

All Snow Forecasts

 

 

 

 

WARMER
HIGH SIERRA
DAYS ARE AHEAD

Pick 'Em !

Summer of 2019 Backpacking Plans?
Yosemite-Hoover-Desolation
&
John Muir Trail Hikers:

 

Past Time to
Order This Year's Permits!

Reserved permits for the whole Summer of 2019 are now available from Yosemite, Hoover, and Desolation Wilderness Areas.

First shot at June reservations began in December.

In other words, Yosemite, Desolation, and Hoover Wilderness Areas all offer advanced reservations about six months ahead of your desired hiking dates, and now the remaining dates across the whole Summer are available.

This means now is the time to get your JMT permit application, along with other popular hikes, into the Man, and see what hiking windows are still open.

For When?

The Whole Summer!


All Permits

Yosemite Permits         Desolation Wilderness

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

TOP

 

26 FEB

Light to Heavy
Precip

TTM out of SW

Forecast Tools

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

TOP

27 FEB

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
& ON THE 1ST-->,
and the 27th below

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 ?, 2019

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 FEB

Broken
Clouds to Clear

More
Tropical Weather
Approaches

 

 

Winter Storm Warnings

All Sierra Forecast Zones

All Precip Forecasts

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temp

1

Thickening Clouds
PM Precip Expected

(Started AM 2nd)

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

Next Readion
March 4

Compare with record year of 2017 in Feb, Above
& March of Last Year, below.

Statewide Summary of Snow Water Content PDF

 

 

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 2017 Reading:
February 3

Next 2017 Readings
February 27

April 1

 

2016
Snotel Station Reports Current Snow Depth
Carson Pass
47 & 26 degrees, 64"

Ebbetts Pass
49 & 30 degrees, 58"

Sonora Pass
48 & 30 degrees, 50''

Tuolumne Meadows
23 & 53 degrees, 43

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

TOP

 

2

Light to Moderate
Precip

AM Start
PM Finish

Watch Low Hit Ca.
Sattelite View

 

HAZARDS

Roads

 

View the Roads
Watch It!
California Web Cams

 

Mammoth Lakes
Winter Warning
Calendar

Written Warning

Carson Pass
Winter Advisory
Calendar

Written Warning

All High Sierra
Reporting Stations

2019
MARCH 2
HIGH SIERRA

--Winter--
22st
Temp-Snow Check

Last Report:
Feb 27th, 2019

Next Report:
March 4, 2019

Let's check our reporting station snow & temp readings aftert the AM rains this moring bringing moisture out of the West & 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" =0
7618 feet
Trail Map
(36.60 H2O) +8.8 ??
37 & 31 +/+

PCT-TYT
Echo Peak

138"
+4"
7652 feet
Stations Map
(50.90 H2O) +1.4
35 & 31 =/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
122" +5
(error??)
8388 feet
Trail Map
Stations Map
(27.60" H2O) +0.1
38 & 28 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
130"
+11
8660 feet
Trail Map
(38.4" H2O) +1.1
33 & 27 =/+

EAST FLANK
Leavitt Lake

193"
+11
9602 feet, East Flank
Trail Map
(49.7 H20) +0.5
31 & 26 +/-

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
67 & 40 +/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

58.00" +12.53

9250 feet,West Flank,
Trail Map
(20.66" H20) +0.66"
31 & 26 +/+

Tuolumne-Merced
Watersheds

Tenaya Lake
118.0
+6.6"
8163 feet, West Flank
Trail Map
(11.55") H20 +0.49
34 & 28 -/+

JMT-PCT-TYT
Tuolumne Meadows

99.0" +8.7 "
8600 feet, West Flank
Trail Map
(6.43") H20 = 0.00"
32 & 25 -/+

Tioga Pass/Dana
109.3" +9.3
9798 feet
Trail Map
10.20" H20
(+0.01)
24 & 27 -/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

153.30" +0.9
10750 feet
Trail Map
(32.57 H2O) +1.25
temps bad

JMT-PCT Junction
Devils Postpile

110.90" +10.44
8004 feet
Trail Map Above
(0.0) =
34 & 29 -/+

NE of JMT-PCT
Mammoth Pass

170.95" Snow +15.68
9500 feet
Trail Map
28.16" H2O =0.00
30 & 26 -/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

108.90" +11.8
10100 feet
Trail Map
(0.00)
30 & 26 -/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(24.80 H2O) +0.3
34 & 27 -/+

East Flank
Big Pine Sawmill

75.40" Snow +10.0"
10200 feet, East Flank
Trail Map Above
30 & 24 -/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

109.81" Snow +10.14
10398 feet, West Flank
Trail Map
43.38 H2O +1.73
29 & 24 -/+
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

106.02" +9.07"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
26 & 21 -/+

JMT
Crabtree Meadow

57.46" Snow +12.15"
10,700 feet
Trail Map
(16.78 H2O) +1.48
28 & 21 -/+

All High Sierra
Reporting Stations

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

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

3

High Cloud Cover

Light Showers

 

Spring Potential Analysis

 

WINTER
STORM WATCHES

In the
North Sierra
Tahoe to Sonora Pass

N Sierra Forecast

In the
South Sierra
Sonora Pass to Whitney

S Sierra Forecast

 

 

Informative
"Normal" Vs. Now

Forcasts & Reality
vs.
Averages

 

 

 

 

 

 

 

 

 

 

 

4

High Cloud Cover

AM Showers

 

HAZARDS

Roads

All Forecasts

2019
Current Snowpack:
Percent of Average for
March 4.

N Sierra: 153%
+1% in 3 days

Cen. Sierra:159%
+3% in 3 days

S Sierra: 149%
+2% in 3 days

Ca State: 155%
+2% in 3 days

Last Reading
March 1

Compare this year against the record Year of 2017
to get some idea of when the trails will clear.

Statewide Summary of Snow Water Content PDF

 

 

View of Sierra on March 4 by the...

MODIS
SIERRA SATELLITE

 

 

 

2018
Snow Depths & Temps

 

2019
MARCH 4
HIGH SIERRA

--Winter--
23rd
Temp-Snow Check

Last Report:
March 2nd, 2019

Next Report:
March 6, 2019

Let's check our reporting station snow & temp readings after the AM rains this moring bringing moisture out of the West & Southwest. This is similar to the last storms out of the Southwest, that signaled 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
108" +2
7618 feet
Trail Map
(36.60 H2O) =0.0
35 & 27 -/-

PCT-TYT
Echo Peak

139"
+1"
7652 feet
Stations Map
(50.90 H2O) +1.3 ??
36 & 28 +/-

American-Yuba Watersheds

PCT-TYT
Carson Pass
120" -2
(error??)
8388 feet
Trail Map
Stations Map
(27.70" H2O) +0.1
38 & 25 =/-

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
127"
-3
8660 feet
Trail Map
(38.8" H2O) +0.4
33 & 26 =/-

EAST FLANK
Leavitt Lake

191"
-2
9602 feet, East Flank
Trail Map
(49.5 H20) -0.2
33 & 24 +/-

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
71 & 38 +/-

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

55.4" -2.6
9250 feet,West Flank,
Trail Map
(20.66" H20) +1.67"
32 & 16 +/-

Tuolumne-Merced
Watersheds

Tenaya Lake
113.2
-4.8"
8163 feet, West Flank
Trail Map
(11.33") H20 +0.33
40 & 22 +/-

JMT-PCT-TYT
Tuolumne Meadows

94.2" -4.8 "
8600 feet, West Flank
Trail Map
(6.44") H20 +0.01"
42 & 13 +/-

Tioga Pass/Dana
103" -6.3
9798 feet
Trail Map
10.20" H20
(=0.00)
35 & 13 +/-

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

149.7" -3.6
10750 feet
Trail Map
(32.58 H2O) +0.01
temps bad

JMT-PCT Junction
Devils Postpile

104.19" -6.71
8004 feet
Trail Map Above
(0.0) =
38 & 28 +/-

NE of JMT-PCT
Mammoth Pass

165.61" Snow -5.34
9500 feet
Trail Map
28.16" H2O =0.00
33 & 22 +/-

JMT-PCT
E of Bear Ridge

Volcanic Knob

103.50" −5.4
10100 feet
Trail Map
(0.00)
41 & 9 +/-

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(24.80 H2O) =0.0
42 & 20 +/-

East Flank
Big Pine Sawmill

69.70" Snow −5.7"
10200 feet, East Flank
Trail Map Above
37 & 20 +/-

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

106.06" Snow -3.75
10398 feet, West Flank
Trail Map
43.38 H2O +0.17
29 & 6 =/-
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

104.32" -1.7"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
33 & 15 +/-

JMT
Crabtree Meadow

53.26" Snow −4.2"
10,700 feet
Trail Map
(16.64 H2O) -0.14
33 & 5 +/-

All High Sierra
Reporting Stations

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

5

Showers

 

BEST
FORECASTS

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS
&
MODELS

 

All High Sierra
ZONE
FORECASTS

 

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

Tropical
Transport
Mechanisms

"Atmospheric Rivers"

About
TTMs
Tropical Transport Mechanisms

TTM
FORECASTS

Seven Day TTM Landfall

 

 

 

2018
Snowpack:

Percent of Average for
March 5.
(Change since Feb 1.)

N Sierra: 30%
(+10%)

Cen. Sierra: 43%
(+16%)

S Sierra: 37%
(+15%)

Ca State: 37%
(+13%)

Last
Feb 24, 2018
March 1, 2018

 

 

 

 

 

 

 

6

Variable Showers

Light to Heavy

Lower Highs,
Higher Lows

PCT-JMT-TYT
WARNING

 

Tropical
Transport
Mechanisms

"Atmospheric Rivers"

About
TTMs
Tropical Transport Mechanisms

TTM
FORECASTS

Seven Day TTM Landfal

 

 

HEAVY SNOWFALL

SOUTH SIERRA POUNDED

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

2018
Snow Depths & Temps

 

2019
MARCH 6
HIGH SIERRA

--Winter--
24th
Temp-Snow Check

Last Report:
March 4nd, 2019

Next Report:
March 11, 2019

Let's check our reporting station snow & temp readings after the heavy AM rains this moring bringing moisture out of the West & Southwest. This is similar to the last storms out of the Southwest, that signaled 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-TRT
Rubicon
113" +5
7618 feet
Trail Map
(36.70 H2O) +0.1
35 & 31 =/+

PCT-TYT-TRT
Echo Peak

148"
+9"
7652 feet
Stations Map
(52.90 H2O) +2.0 ??
36 & 31 =/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
130" +10
(error??)
8388 feet
Trail Map
Stations Map
(28.00" H2O) +0.3
35 & 29 -/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
139"
+12
8660 feet
Trail Map
(39.80 H2O) +0.2
33 & 26 =/-

EAST FLANK
Leavitt Lake

205"
+14
9602 feet, East Flank
Trail Map
(49.9 H20) +0.4
31 & 26 -/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
57 & 29 -/-

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

57.52" +2.12
9250 feet,West Flank,
Trail Map
(23.04" H20) +2.38" ??
28 & 24 -/+

Tuolumne-Merced
Watersheds

Tenaya Lake
123.60
+10.4"
8163 feet, West Flank
Trail Map
(12.37") H20 +1.04
33 & 29 -/+

JMT-PCT-TYT
Tuolumne Meadows

117.70" +23.5"
8600 feet, West Flank
Trail Map
(6.44") H20 = 0.00 ??
31 & 25 -/+

Tioga Pass/Dana
117.50" +14.5
9798 feet
Trail Map
10.23 H20
(=0.00) ??
27 & 21 =/=

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

152.80" +3.1
10750 feet
Trail Map
(34.59 H2O) +2.01 ??
temps bad

JMT-PCT Junction
Devils Postpile

114.78" +10.59
8004 feet
Trail Map Above
(0.0) =
33 & 31 -/+

NE of JMT-PCT
Mammoth Pass

176.67" Snow+11.06
9500 feet
Trail Map
28.16" H2O =0.00
28 & 24 -/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

114.00" +10.5
10100 feet
Trail Map
(0.00)
31 & 22 -/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(25.60 H2O) +0.8
27 & 23 -/+

East Flank
Big Pine Sawmill

92.60" Snow +22.9
10200 feet, East Flank
Trail Map Above
25 & 20 -/=

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

143.30" Snow+37.24
10398 feet, West Flank
Trail Map
47.03 H2O +3.65 !!
26 & 21 -/+
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

134.79" +30.47"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
25 & 18 -/+

JMT
Crabtree Meadow

84.32" Snow+31.06"
10,700 feet
Trail Map
(20.43 H2O) +3.79
25 & 19 -/+

All High Sierra
Reporting Stations

Heavy AM showers, clarity building into range of PM showers from light to moderate

7

Diminishing
Showers

 

Updated !
Desolation Snow

 

 

2019
Current Snowpack:
Percent of Average for
March 7.

N Sierra: 158%
+5% in 3 days

Cen. Sierra:164%
+5% in 3 days

S Sierra: 161%
+12% in 3 days

Ca State: 161%
+6% in 3 days

Last Reading
March 4

Next Reading
March 10

Compare this Winter, first with Feb 3 during the record year of 2017, Above, the first of March, and
April 1st of 2017, below.

Statewide Summary of Snow Water Content PDF

 

 

 

 

 

 

 

 

 

 

 

2017
Snow & Temp Report

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

8

Clear & Cloudy
Clear Coast
Cloudy Sierra Nevada

Spitting Light Snow

 

Potential Clear Night
Brings
COLD
Hazard

 

THE
CURRENT SNOWPACK

All Snow Information

GRAPHICS

Date-Adjustable Multi-Aspect High Sierra Snowpack Status
THE 4TH

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
3-4-19

 

All
High Sierra
Reporting Stations

 

REPORTING
STATIONS

NEW
Temp & Snow Tables
by Watershed and Highway Corridor

 

Also See
All High Sierra Snowpack Data

 

2018
Snow Depths & Temps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

9

Broken Clouds
Showers

 

PCT-JMT-TYT
WARNING

 

All Sierra Forecast Zones

All Precip Forecasts

 

The Sierra
on
March 9
by...

MODIS
SIERRA SATELLITE

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

10

Light Showers
&
Sun
Broken Clouds

(Random Downpours)

2019
Current Snowpack:
Percent of Average for
March 10.

N Sierra: 156%
-2% in 3 days

Cen. Sierra:165%
+1% in 3 days

S Sierra: 162%
+2% in 3 days

Ca State: 161%
=0% in 3 days

Last Reading
March 7

Next Reading
March 18

Compare the record year of 2017 on Feb 3, Above
and 2017's progression through the beginning of March, 2017, and into
April 1st of 2017, with this intense Winter of 2019.

Look Right --->
for 2018 Snow Pack Averages.

Statewide Summary of Snow Water Content PDF

 

 

2018
Snow Depths & Temps

 

Start of Daylight Savings

Spring Forward, Fall Back...

 

DAYLIGHT SAVINGS TIME

THE DST RULES
NIST

PDT
Information

Move clocks one hour Forward in time.

"Spring Forward,
Fall Back."

Why do we think we can manipulate Time & Nature, when the main thing we are changing, screwing-up, is ourselves?

Well, Nature too...

CRITICAL

Our
LOCAL
Measurement of Time
from
Greenwich Time, at.
"Longitute O,"
AKA,
"Zulu Time,"
or
"UTC,"
to the
West Coast & High Sierra
Shifts from


Z-8=PST
to
Z-7=PDT

PDT Ends
November 3

 

 

 

11

Clarity
Except E Sierra Flank

Sustained Clearing?

NE Pac High
Moving East to Coast.
Will it maintain a
"blocking" position ?

 

Clear Nights
Bring
COLD
Hazards

 

Crystal Clear
Sno-Covered Sierra
on
March 11
by...

MODIS
SIERRA SATELLITE

 

It's
A MONSTER

 

LAST WEEK

NEXT WEEK

 

TOP

 

2019
MARCH 11
HIGH SIERRA

--Winter--
25th
Temp-Snow Check

Last Report:
March 6th, 2019

Next Report:
March 17, 2018

Let's check our reporting station snow & temp readings after this day of incredible clarity preceeded by a couple of days of showers & gradual clearing...

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-TRT
Rubicon
112" -1
7618 feet
Trail Map
(36.80 H2O) +0.1
31 & 24 -/-

PCT-TYT-TRT
Echo Peak

145"
-3"
7652 feet
Stations Map
(53.40 H2O) +0.5
33 & 24 -/-

American-Yuba Watersheds

PCT-TYT
Carson Pass
125" -5
(error??)
8388 feet
Trail Map
Stations Map
(28.10" H2O) +0.1
31 & 21 -/-

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
134"
-4
8660 feet
Trail Map
(39.30 H2O) -0.5
33 & 19 =/-

EAST FLANK
Leavitt Lake

205"
=0
9602 feet, East Flank
Trail Map
(49.9 H20) =0.0
27 & 16 -/-

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
64 & 13 +/-

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

56.65" −0.87
9250 feet,West Flank,
Trail Map
(23.97" H20) +0.93"
24 & 14 -/-

Tuolumne-Merced
Watersheds

Tenaya Lake
119.50
−4.1"
8163 feet, West Flank
Trail Map
(13.22") H20 +0.85
36 & 9 +/-

JMT-PCT-TYT
Tuolumne Meadows

97.90" −19.8"
8600 feet, West Flank
Trail Map
(6.44") H20 = 0.00 ??
33 & 2 +/-

Tioga Pass/Dana
107.90" −9.6
9798 feet
Trail Map
10.31 H20
(+0.08) ??
27 & 3 =/-

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

155.50" +2.7
10750 feet
Trail Map
(34.33 H2O) −0.26 ??
temps bad

JMT-PCT Junction
Devils Postpile

110.09" −4.69
8004 feet
Trail Map Above
(0.0) =
36 & 17 +/-

NE of JMT-PCT
Mammoth Pass

173.51" Snow −3.16"
9500 feet
Trail Map
28.16" H2O =0.00
31 & 14 +/-

JMT-PCT
E of Bear Ridge

Volcanic Knob

111" -3.0"
10100 feet
Trail Map
(0.00)
33 & 7 +/-

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(25.60 H2O) =0.0
39 & 8 +/-

East Flank
Big Pine Sawmill

81.60" Snow −11
10200 feet, East Flank
Trail Map Above
25 & 4 =/-

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

131.37" Snow−11.93
10398 feet, West Flank
Trail Map
47.72 H2O +0.69
22 & 5 -/-
(The coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

125.54" −9.25"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
19 & 5 -/-

JMT
Crabtree Meadow

71.95" Snow−12.37"
10,700 feet
Trail Map
(20.43 H2O) +0.34
26 & -1 +/-

All High Sierra
Reporting Stations

Heavy AM showers, clarity building into range of PM showers from light to moderate

 

12

Clarity
Afternoon Sierra Clouds

Clear Night Tonight
Brings
EXTREME

COLD
Hazard

This High
is Moving
Frigid Northern Cold Air
SOUTH

 

 

2018
Snow Depths & Temps

 

 

 

 

BEST
FORECASTS

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS
&
MODELS

 

All High Sierra
ZONE
FORECASTS

 

Forecast
Winds? Weather?

NorCal Graphics

SoCal & SW US

 

Forecast
Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model,
observe using step button

 

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

Tropical
Transport
Mechanisms

"Atmospheric Rivers"

About
TTMs
Tropical Transport Mechanisms

TTM
FORECASTS

Seven Day TTM Landfall

 

13

Another Clear Day
Warming

Clear Night Tonight
Brings
EXTREME

COLD
Hazard

This High
is Moving
Frigid Northern Cold Winds
SOUTH

 

 

2018
Snow Depths & Temps

 

 

 

2017
Snow & Temps

 

 

 

 

 

THE
CURRENT SNOWPACK

All Snow Information

GRAPHICS

Date-Adjustable Multi-Aspect
High Sierra Snowpack
Status

THE 10TH

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
3-10-19

OBSERVATIONS

All
High Sierra
Reporting Stations

 

NEW
Temp & Snow Tables
by Watershed and Highway Corridor

 

Also See
All High Sierra Snowpack Data


14

Clear Day
Warming

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

2018
Snow Depths & Temp

 

2018
Snowpack:

Percent of Average for
March 14
+/- change since
March 5

N Sierra: 32%
(+2%)

Cen. Sierra: 43%
(+0%)

S Sierra: 38%
(+1%)

Ca State: 38%
(+1%)

Last
March 5, 2018
March 1, 2018
Feb 24, 2018

Statewide Summary of Snow Water Content PDF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

15

Clear Day
Warm

 

 

 

 

 

 

 

 

 

 

 

2017
Average Snowpack
2017 March 1

2017 March 27 & April 1

16

Clear Day
Warmer

 

 

 

 

 

 

 

2018
Snow Depths & Temp

 

 

 

2017
TTM setting up to begin Monday-Tuesday next?

(Tropical Transport Mechanism)

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

17

Saint Pat's Day

Clear Day
Fog Bank off Whole
N Cal Coast

Persistant High
Covering Ca Coast &
Offshore Waters for a Week now.

Last Blocking Ridge we've seen off the West Coast was in the
last week of 2018.

 

Next
Precip Predicted
3-20, 1700

Our Last
PCT-JMT
Trail Opening Prospects
REPORT
March 6, 2019

2017
Snow Pack

 

 

 

 

2019
MARCH 17
HIGH SIERRA

--Winter--
26th
Temp-Snow Check

Last Report:
March 11th, 2019

Next Report:
March ?, 2018

Let's check our reporting station snow & temp readings after this last six days of incredible clarity, preceeded by a couple of days of showers & gradual clearing...

Click the stations below for their 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-TRT
Rubicon
105" -7
7618 feet
Trail Map
(38.00 H2O) +1.2
38 & 33 +/+

PCT-TYT-TRT
Echo Peak

145"
-12"
7652 feet
Stations Map
(55.60 H2O) +2.2
50 & 33 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
116" -9
(error??)
8388 feet
Trail Map
Stations Map
(39.10" H2O) +11. ??
49 & 25 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
125"
-9
8660 feet
Trail Map
(41.10 H2O) -1.8
49 & 29 +/+

EAST FLANK
Leavitt Lake

197"
-8
9602 feet, East Flank
Trail Map
(57.30 H20) +7.4 ??
46 & 28 +/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
78 & 15 +/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

51.85" −4.8
9250 feet,West Flank,
Trail Map
(23.86" H20) -0.11"
44 & 13 +/-

Tuolumne-Merced
Watersheds

Tenaya Lake
110.50
−9"
8163 feet, West Flank
Trail Map
(13.34") H20 +0.12
55 & 14 +/+

JMT-PCT-TYT
Tuolumne Meadows

91.00" −6.9"
8600 feet, West Flank
Trail Map
(6.44") H20 = 0.00 ??
53 & 10 +/+

Tioga Pass/Dana
100.90" −7
9798 feet
Trail Map
10.69 H20
(+0.38)
40 & 13 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

155.80" +0.3
10750 feet
Trail Map
(34.18 H2O) −0.15 ??
temps bad

JMT-PCT Junction
Devils Postpile

102.46" −7.63
8004 feet
Trail Map Above
(0.0) =
52 & 15 +/-

NE of JMT-PCT
Mammoth Pass

163.74" Snow −9.77"
9500 feet
Trail Map
28.16" H2O =0.00
46 & 17 +/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

104.40" -6.6"
10100 feet
Trail Map
(0.00)
49 & 10 +/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(25.70 H2O) +0.1
52 & 10 +/+

East Flank
Big Pine Sawmill

72.30" Snow −9.3
10200 feet, East Flank
Trail Map Above
41 & 7 +/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

120.82" Snow−10.55
10398 feet, West Flank
Trail Map
47.80 H2O +0.08
39 & 14 +/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

118.92" −6.62"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
36 & 13 +/+

JMT
Crabtree Meadow

63.17" Snow−8.78"
10,700 feet
Trail Map
(20.70 H2O) +0.27
38 & 11 +/+

All High Sierra
Reporting Stations

Fog off whole North Coast of CA, otherwise clear & warm.

18

Clear Day
Fog Bank off Whole
North & Central
California Coast

 

2019
Current Snowpack:
Percent of Average for
March 18.

N Sierra: 152%
-4% in 8 days

Cen. Sierra:165%
-6% in 8 days

S Sierra: 154%
-8% in 8 days

Ca State: 156%
-5% in 8 days

Last Reading
March 10

Compare the record year of 2017 on Feb 3, Above
and 2017's progression through the beginning of March, 2017, and into
April 1st of 2017, with this intense Winter of 2019.

Look Right --->
for 2018 Snow Pack Averages.

Statewide Summary of Snow Water Content PDF

 

 

BEWARE
Clear Nights Can Bring
EXTREME

COLD
Hazards

 

 

2018
Snow Depths & Temps

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

19

Cloudy
Cooler

Next
Precip Predicted
3-20, 1700

Steady Precip from 11pm

 

BEST
FORECASTS

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS
&
MODELS

 

All High Sierra
ZONE
FORECASTS

 

Forecast
Winds? Weather?

NorCal Graphics

SoCal & SW US

 

Forecast
Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model,
observe using step button

 

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

 

 

 

 

 

2017
Snow & Temps

 

20

Steady Precip
Moderate

Afternoon Clearing

Vernal
Equinox

First Day of Spring

Happens
Wednesday, March 20, 2019 at 21:58 Universal Time, So,

PDT = UT - 7
(PDT Shift)

2:58 PM, PDT.

The
Vernal Equinox
VIDEO

A Terrestrial Year from Space,
APOD, March 19, 2017.

 

Trail Guide
Seasonal Observer

Time References

2019
MARCH 20
HIGH SIERRA

--Spring--
1st
Temp-Snow Check

Last Report:
March 17th, 2019

Next Report:
March ?, 2018

Let's check our reporting station snow & temp readings after this last day of moderate precip, preceeded by a the last nine days of clarity...

Click the stations below for their 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-TRT
Rubicon
102" -3
7618 feet
Trail Map
(39.40 H2O) +1.4
46 & 31 +/-

PCT-TYT-TRT
Echo Peak

129"
-16"
7652 feet
Stations Map
(55.90 H2O) +0.3
47 & 31 -/-

American-Yuba Watersheds

PCT-TYT
Carson Pass
112" -4
(error??)
8388 feet
Trail Map
Stations Map
(40.2" H2O) +1.1
43 & 29 -/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
124"
-2
8660 feet
Trail Map
(44.00 H2O) +2.9
42 & 27 -/-

EAST FLANK
Leavitt Lake

198"
+1
9602 feet, East Flank
Trail Map
(58.90 H20) +1.6
40 & 24 -/-

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
69 & 27 -/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

50.73" −1.12
9250 feet,West Flank,
Trail Map
(24.30" H20) +0.44"
32 & 24 -/+

Tuolumne-Merced
Watersheds

Tenaya Lake
110.70
+0.2"
8163 feet, West Flank
Trail Map
(13.75") H20 +0.14
38 & 26 -/+

JMT-PCT-TYT
Tuolumne Meadows

88.80" −2.2"
8600 feet, West Flank
Trail Map
(6.45") H20 - 0.01 ??
38 & 22 -/+

Tioga Pass/Dana
96.50" −4.4
9798 feet
Trail Map
11.15 H20
(+0.46)
33 & 20 -/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

156.10" +0.3
10750 feet
Trail Map
(34.58 H2O) +0.4 ??
temps bad

JMT-PCT Junction
Devils Postpile

99.26" −3.2
8004 feet
Trail Map Above
(0.0) =
37 & 29 -/+

NE of JMT-PCT
Mammoth Pass

167.47" Snow +3.73"
9500 feet
Trail Map
28.16" H2O =0.00
31 & 23 -/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

104.40" =0.0"
10100 feet
Trail Map
(0.00)
41 & 19 -/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(25.70 H2O) =0.0
46 & 23 -/+

East Flank
Big Pine Sawmill

73" Snow _+0.7
10200 feet, East Flank
Trail Map Above
34 & 21 -/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

121.76" Snow+0.94
10398 feet, West Flank
Trail Map
48.61 H2O +0.81
28 & 140 -/-
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

115.66" −3.26"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
27 & 11 -/-

JMT
Crabtree Meadow

63.90" Snow+0.73"
10,700 feet
Trail Map
(21.39 H2O) +0.69
33 & 8 -/-

All High Sierra
Reporting Stations

Fog off whole North Coast of CA, otherwise clear & warm.

 

2018
Snowpack:

Percent of Average for
March 20
+/- change since
March 14

N Sierra: 40%
(+8%)

Cen. Sierra: 55%
(+12%)

S Sierra: 43%
(+5%)

Ca State: 48%
(+10%)

Last
March 23
March 22
March 20
March 14, 2018 March 14, 2018
March 5, 2018
March 1, 2018
Feb 24, 2018

Statewide Summary of Snow Water Content PDF

 

21

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temps

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

2017
Average Snowpack
2017 March 1

2017 March 27 & April 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

22

 

 

THE
CURRENT SNOWPACK

All Snow Information

GRAPHICS

Date-Adjustable Multi-Aspect
High Sierra Snowpack
Status

THE 17TH

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
3-17-19

OBSERVATIONS

All
High Sierra
Reporting Stations

 

NEW
Temp & Snow Tables
by Watershed and Highway Corridor

 

Also See
All High Sierra Snowpack Data

 

 

 

 

 

 

 

 

 

2018
Snowpack:

Percent of Average for
March 22
+/- change since
March 20

N Sierra: 43%
(+3%)

Cen. Sierra: 61%
(+6%)

S Sierra: 50%
(+7%)

Ca State: 52%
(+4%)

Last
March 23
March 22
March 20
March 14, 2018
March 5, 2018
March 1, 2018
Feb 24, 2018

Statewide Summary of Snow Water Content PDF

 

 

2017
Snow & Temps

 

 

23

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temps

 

2018
Snowpack:

Percent of Average for
March 23
+/- change since
March 22

N Sierra: 44%
(+1%)

Cen. Sierra: 65%
(+4%)

S Sierra: 57%
(+7%)

Ca State: 56%
(+3%)

Last
March 23
March 22
March 20
March 14, 2018
March 5, 2018
March 1, 2018
Feb 24, 2018

Statewide Summary of Snow Water Content PDF

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

24

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

 

25

 

 

 

 

 

2018
Snow Depths & Temps

 

26

 

 

 

 

 

 

27

 

 

 

 

2018
Snowpack:

Percent of Average for
March 27
+/- change since
March 23

N Sierra: 48%
(+4%)

Cen. Sierra: 65%
(=%)

S Sierra: 56%
(-1%)

Ca State: 58%
(+2%)

Last
March 23
March 22
March 20
March 14, 2018
March 5, 2018
March 1, 2018
Feb 24, 2018

Statewide Summary of Snow Water Content PDF

2017
Current Snowpack:
Percent of Average for
March 27.

N Sierra: 145%

Cen. Sierra: 174%

S Sierra: 166%

 

Ca State: 163%

Statewide Summary of Snow Water Content PDF

Last Reading:
March 1

 

 

28

 

 

 

 

 

 

 

 

 

2017
Snow & Temps

 

29

 

 

 

 

 

 

 

30

Backpackers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

31

 

 

2018
Snow Depths & Temps

 

 

1 APRIL

 

 

 

 

2017
Current Snowpack:
Percent of Average for
April 1.

N Sierra: 147%

Cen. Sierra: 175%

S Sierra: 166%

Ca State: 164%

Statewide Summary of Snow Water Content PDF

Cal Coop Snow Survey

Last Readings:

March 27

March 1

 

2 APRIL 3 APRIL 4 APRIL 5 APRIL

6 APRIL

 

 

LAST WEEK

NEXT MONTH

 

TOP

 

 

Top of Page

End of Feb

 

2019

January       February     March       April       May       June

July     August     September       October       November       December

 

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

Classic March
NOTES

Are heavy storms rolling in? From the North or South? Is a pattern forming? Breaking? A new one reforming?

What's Going On!?

 

Seasonal NOTES:

2019
March 1, 2019, Snowpack
153%

March 10, 2019, Snowpack
156%

 

2018

March 1, 2018, Snowpack
24%

April 3, 2018, Snowpack
51%

 

2017

March 1, 2017 Snowpack
201%

April 1, 2018, Snowpack
164%

 

 

 

 

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 March Question
WHAT HAPPENED?
Piercing Cold & Heavy Snow this last month or just “Normal" Cold & Pathetic Snow?

AFTER REPORTS

2019 Answer:
March: Sustained snow & unstable weather brings 161% of snowpack on the 11th, looking like it could match 2017's 164% of snowpack on April 1, which endangered PCTers attempting to enter the Sierra when they would normally expect open trails, and kept snow on the Sierra Crest through the Summer of 2017.

March 6 Warning


Feb: Some cold snaps from North bringing below zero temperatures

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 March Question
Heavy Snow Storms or None at All?

2019 Answer:
Huge Snow Year, almost as much as 2017.
Anticipating delayed Starts on PCT & JMT

2018 Answer:
Very Weak snowpack, what little was saved by some late cool temps & snow, (which doubled the snowpack through March), but barly made it to, or through, June

2017 Answer:
March. 15 Report
We have gotten pounded with record precip & snow, with late month storms preserving heavy snowpack, despite increasing temps.

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...

 

 

February 2019

 

The nature of our Snow Backpacking trips are determined by the character of the snow.

Why?
Deep, soft, wet snow makes for rough going, as does fresh powder.

Cold hard well-packed snow can be faster than good trail.

2017:
BAD SNOW WARNINGS
See Jan 6-7, and Feb 8-9, among other examples of rain across the Sierra Crest

Happy Trails!

Tahoe to Whitney

 

Top of Page

 

2019

January         February         March         April         May         June

July         August         September         October         November         December

 

 

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 

Trailhead
 
Contact
Alex Wierbinski

top of page

Lake Tahoe to Mount Whitney

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

top of page

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