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

2019
HIGH SIERRA BACKPACKER'S

Calendar

 

JUNE

 

 

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

2019
THIS YEAR
News, Views, & Issues

2019
High Sierra
News
Spring
of
2019
2019
Natural Meltdown

 

2018
LAST YEAR
News, Views, & Issues
JUNE
2018
High Sierra
News
JUNE
2018
Backpacker
Alerts
Spring
of
2018

 

2017
News, Views, & Issues
JUNE
2017
High Sierra
News
JUNE
2017
Backpacker
Alerts
2017
Natural Meltdown

 

High Sierra
Backpacking
TOPICS
High Sierra
Backpacking
TRAILS
High Sierra
Backpacking
FITNESS
High Sierra
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High Sierra
RESUPPLY
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GUIDE
INDEX
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INDEX
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MILES
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2019
High Sierra
Backpacking Calendar

2019 INDEX

January         February         March         April         May         June

July         August         September         October         November         December

 

June
2019

Week 1

Week 2

Week 3

Week 4

Week 5

TRAILHEAD

Last Year

2017

June 2019
Magical pond on the South end of Seavy Pass
Summit City Canyon from Mount Reba.
Seavy Pass is the high point in a wide bowl filled with beautiful ponds atop the ridge separating Bensen Lake from Kerrick Canyon along the combined TYT-PCT routes through the North Yosemite Backcountry. Above we are passing around the Southernmost pond before beginning the great descent to Bensen Lake.

Trail Guide           Map           Miles and Elevations

JUNE
2019

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

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

 

 

LAST MONTH

NEXT WEEK

 

 

Transitional Month

Not at all during May of 2019
The Sierra Crest still has between four feet on it in the North Sierra to 8 in the South.

CLEARING QUICKLY DURING 2018

Not so much during 2017
The Sierra Crest still has between four feet on it in the North Sierra to 10 in the South.

 

 

 

 

More
High Sierra
Backpacker Information

High Sierra
News of Nature & Science for Backpackers

 

 

 

LET'S GO BACKPACKING

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High Sierra Magazine

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MORE

Navigation Information
Time & Space

 

 

High Sierra Backpacker
Trail Skills

28 May

Unstable-Clearing
Lighter to Moderate
Scattered Precip & Clear
out of N & NE

Persistant
Low Over S Nevada

 

May 28 Report

 

 

2019
Current Snowpack:
Percent of Average for
May 28.

N Sierra: 203%
+31% in 5 days

Cen. Sierra: 203%
+29% in 5 days

S Sierra: 173%
+23% in 5 days

Ca State: 191%
+37% in 5 days

Last Reading
May 23

Statewide Summary of Snow Water Content PDF

 

 

THE
CURRENT SNOWPACK

Current Conditions

All Snow Information

GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack
Status
THE 27th

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
5-27-19

 

OBSERVATIONS

All
High Sierra
Reporting Stations

 

Temp & Snow Tables
by Watershed and Highway Corridor

 

 


 

2018
Snowpack, May 28

 

2017
Snowpack

29 May

Unstable-Clearing
WARMING
Lighter to Moderate
Scattered Precip & Clear
out of N & NE

Persistant
Low Over S Nevada

 

 

High Sierra
Weather Page

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

 

 

SPRING THAW

RIVER INFORMATION

RESERVOIRS

HAZARDS

 

 

 

What Up?

Informative
"Normal" Vs. Now

Forcasts & Reality
vs.
Averages

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snowpack
Percent of Average for
May 29

+/- change since
May 24

N Sierra: 11%
(-1%)

Cen. Sierra: 11%
(-4%)

S Sierra: 5%
(-3%)

Ca State: 9%
(-3%)

Last
May 24

Statewide Summary of Snow Water Content PDF

 

 

 

30 May

Unstable-Clearing
WARMING
Lighter to Moderate
Scattered Precip & Clear
out of N & NE

Persistant
Low Over S Nevada

 

Rapid Thaw Underway

 

2019
Current Snowpack:
Percent of Average for
May 30.

N Sierra: 212%
+9% in 2 days

Cen. Sierra: 211%
+8% in 2 days

S Sierra: 178%
+5% in 2 days

Ca State: 196%
+5% in 2 days

Last Reading
May 28

Next Reading
June 3

Statewide Summary of Snow Water Content PDF

 

2019
MAY 30
HIGH SIERRA

19th
--Spring--
Temp-Snow Check

Last Report:
May 27, 2019

Next Report:
June 2 , 2019

Let's check our reporting station snow & temp readings after the last 2 days of light, unstable weather-snow-mixed-precip.

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, noting the change in snow depths and temps since our last readings.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

The Thaw: It's Coming

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
44" −12
7618 feet
Trail Map
(48.90 H2O) +0.1
54 & 39 +/+

PCT-TYT-TRT
Echo Peak

47"
−8"
7652 feet
Stations Map
(68.30 H2O) +0.4
55 & 40 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
46" −6
8388 feet
Trail Map
Stations Map
(48.70" H2O) +0.3
55 & 33 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
66" −
5
8660 feet
Trail Map
(65.20 H2O) +0.2
52 & 37 +/+

West of PCT
Highlands Meadow

6.46" −6.99
8360 feet
Trail Map
(49.34) +0.52
48 & 31 +/+

EAST FLANK
Leavitt Lake

157"
7
9602 feet, East Flank
Trail Map
(67.70 H20) +0.4
52 & 37 +/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
82 & 37+/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

10.75" −4.74
9250 feet,West Flank,
Trail Map
(30.25" H20) +0.17"
52 & 28 +/+

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
114.40"
+5.3
8602 feet
Trail Map
(No H2O)
52 & 25 +/+

Tenaya Lake
29.52
−7.83"
8163 feet, West Flank
Trail Map
(22.37") H20 =0.00"
55 & 28 +/+

JMT-PCT-TYT
Tuolumne Meadows

0.11" −8.12"
8600 feet, West Flank
Trail Map
(8.49") H20 =0.00"
56 & 26 +/+

Tioga Pass/Dana
40.23" −5.41
9798 feet
Trail Map
15.41 H20
+1.04 ??
49 & 25 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

151.00" −0.0 ERROR?
10750 feet
Trail Map
(00.00 H2O) =0.00 ??
temps bad

JMT-PCT Junction
Devils Postpile

7.07" −8.94
8004 feet
Trail Map Above
(0.0) =
56 & 29 +/+

NE of JMT-PCT
Mammoth Pass

105.98" Sno −6.66
9500 feet
Trail Map
58.84" H2O +0.04
53 & 31 +/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

67.20" −5.2"
10100 feet
Trail Map
(0.00)
54 & 24 +/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.10 H2O) =0.00
56 & 29 +/+

East Flank
Big Pine Sawmill

35.10" Snow −2.5
10200 feet, East Flank
Trail Map Above
47 & 27 +/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

61.35" Snow −3.76
10398 feet, West Flank
Trail Map
59.63 H2O +0.37
48 & 24 +/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

78.57" −2.25"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
49 & 27 +/+

JMT
Crabtree Meadow

19.71" Snow −2.72"
10,700 feet
Trail Map
(24.73 H2O) +0.23
48 & 26 +/+

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

 

31 May

Unstable-Clearing
WARMING
Light to Moderate
Scattered Precip & Clear
out of NE & E

Persistant
Low Over S Nevada

Thunderstorms

Rapid Thaw Underway

 

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

1 June

Unstable-Clearing
WARMING-SHOWERS
Light
Scattered Precip & Clear
out of NE & E

Persistant
Low Over S Nevada

Thunderstorms

Rapid Thaw Underway

 

 

Mosquito News

Mosquito Defense

 

 

BEST
FORECASTS

Precipitation
General

Quantitative Precipitation Forecasts:
ALL
RAIN FORECASTS
&
MODELS

 

Direct to
Seven Day Precip
Animation

 

Precipitation
Geographic

All High Sierra
ZONE & POINT
FORECASTS

 

All High Sierra
ZONE
FORECASTS

 

Now

RADAR

 

Direct
to
GRAPHICAL INTERFACE

Forecast
Winds? Weather?

NorCal Graphics

Region, SW US

 

Forecast
Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model,
observe using step button

All Temps

Let's look at the
Big Picture
Surface Map

The Pacific Ocean

US Weather Map

All Maps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
2

Unstable-Clearing
WARMING-SHOWERS
Light
Scattered Precip & Clear
out of NE & E

Persistant
Low Over S Nevada

Thunderstorms

 

Rapid Thaw Underway

 

GRAPHICS
Date-Adjustable Multi-Aspect

One Day
Precip Across the Crest

One Week
Precip Across the Crest

 

 

 

 

 

 

2019
JUNE 2
HIGH SIERRA

20th
--Spring--
Temp-Snow Check

Last Report:
May 30, 2019

Next Report:
June 8, 2019

Let's check our reporting station snow & temp readings after the last 3 days of light, unstable weather-snow-mixed-precip.

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, noting the change in snow depths and temps since our last readings.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

The Thaw: It's Coming

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
35" −9
7618 feet
Trail Map
(49.10 H2O) +0.2
60 & 43 +/+

PCT-TYT-TRT
Echo Peak

37"
−10"
7652 feet
Stations Map
(68.40 H2O) +0.1
59 & 42 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
39" −7
8388 feet
Trail Map
Stations Map
(49.70" H2O) +1.0 ?
53 & 35 −/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
59" −
7
8660 feet
Trail Map
(65.80 H2O) +0.6
57 & 38 +/+

West of PCT
Highlands Meadow

0.00" −6.46
8360 feet
Trail Map
(49.34) +0.52
55 & 33 +/+

EAST FLANK
Leavitt Lake

153"
4
9602 feet, East Flank
Trail Map
(68.00 H20) +0.3
52 & 38 =/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
74 & 36−/−

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

5.93" −4.82
9250 feet,West Flank,
Trail Map
(30.47" H20) +0.22"
56 & 32 +/+

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
118.30"
+3.9
8602 feet
Trail Map
(No H2O)
55 & 29 +/+

Tenaya Lake
22.93
−6.59"
8163 feet, West Flank
Trail Map
(22.83") H20 +0.46"
57 & 30 +/+

JMT-PCT-TYT
Tuolumne Meadows

0.11" +0.74"
8600 feet, West Flank
Trail Map
(8.64") H20 −0.15"
56 & 28 =/+

Tioga Pass/Dana
37.09" −3.14
9798 feet
Trail Map
15.70 H20
+0.29
50 & 28 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

151.00" −0.0 ERROR?
10750 feet
Trail Map
(31.56 H2O) +31.56 ??
temps bad

JMT-PCT Junction
Devils Postpile

3.11" −3.96
8004 feet
Trail Map Above
(0.0) =
59 & 31 +/+

NE of JMT-PCT
Mammoth Pass

102.53" Sno −3.45
9500 feet
Trail Map
59.00" H2O +0.16
50 & 33 −/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

63.60" −3.6"
10100 feet
Trail Map
(0.00)
52 & 27 −/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.10 H2O) =0.00
54 & 31 −/+

East Flank
Big Pine Sawmill

32.80" Snow −2.3
10200 feet, East Flank
Trail Map Above
44 & 27 −/=

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

59.00" Snow −2.35
10398 feet, West Flank
Trail Map
59.95 H2O +0.32
48 & 27 =/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

74.83" −3.74"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
44 & 30 −/+

JMT
Crabtree Meadow

17.31" Snow −2.4"
10,700 feet
Trail Map
(25.07 H2O) +0.34
48 & 28 =/+

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

3

Unstable-Clearing
DEPARTING-SHOWERS
Scattered Clouds & Clear
out of NE & E

Persistant
Low Over S Nevada

Thunderstorms

 

Rapid Thaw Underway

Rivers Growing

 

Background
Wettest Year on Record

 

2019
Current Snowpack:
Percent of Average for
June 3.

N Sierra: 215%
+3% in 4 days

Cen. Sierra: 216%
+5% in 4 days

S Sierra: 188%
+10% in 4 days

Ca State: 201%
+5% in 4 days

Last Reading
May 30

Statewide Summary of Snow Water Content PDF

NOTE
The snowpack is rapidly shrinking as it continues to pick up wet, warm snow, if not cold water...

Today's Snow Melt


 

HWYS 4 & 108
OPEN

HWY 120
CLOSED

Road Information

 

 

 

 

 

 

 

 

 

 

2018
Snowpack, June 2

 


2017
Snowpack

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Clearing-Clear
WARMING

Persistant
Low Over S Nevada

moving out

 

Rapid Thaw Underway

Rivers Growing

 

 

 

SPRING THAW

RIVER INFORMATION

RESERVOIRS

HAZARDS

 

 

 

Seven Day
Freezing Temperature Probability

 

 

The
High Sierra
Weather Page

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2016
Early Season Heat wave STRONG
VALLEY TEMPS TO 100s

2016
Carson Pass
8353 ft
Clear of Snow today
49 & 30°, 0"

Ebbetts Pass
51 & 31°, 7"

Sonora Pass E Flank
67 & 41°, 0"

Deadman Creek
Upper meadow West flank just below Sonora Pass
72 & 34°, 16"

Tioga Pass DM
xx & xx°, 17"?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

TOP

 

 

 

 

 

5

Clear Morn
T-Storm Cloudy Afternoon
WARMING

Persistant
Low Over S Nevada

Thunderstorms

 

Rapid Thaw Underway

Rivers Growing

 

 

 

 

LAST WEEK

NEXT WEEK

TOP

 

 

 

THE
CURRENT SNOWPACK

Current Conditions

All Snow Information

GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack
Status
THE 2nd

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
6-2-19

 

 

OBSERVATIONS

All
High Sierra
Reporting Stations

 

Temp & Snow Tables
by Watershed and Highway Corridor

 

 

 

 

More
High Sierra
Backpacker Information

Guide Trailhead

Guide Index

High Sierra Magazine

HIGH SIERRA TRAILS FORUMS

HIGH SIERRA TOPICS FORUMS

GEAR FORUMS

GEAR LIST

 

6

Clear & Cloudy
Breezy Cloudy Afternoon
WARM-COOLER

Persistant
Low Over S Nevada

 

Rapid Thaw Underway

Rivers Growing

 

 

 

2019
Current Snowpack:
Percent of Average for
June 6.

N Sierra: 181%
−34% in 3 days

Cen. Sierra: 205%
−11% in 3 days

S Sierra: 188%
=0% in 3 days

Ca State: 190%
−11% in 3 days

Last Reading
June 3

Next Reading
June 10

Statewide Summary of Snow Water Content PDF

 

 

 

 

 

 

 

Observe
Storm, Temp, Weather Pattern effects on Terrain & runoff flows to properly ascertain conditions for last Spring Trips.

 

 

Informative
"Normal" Vs. Now

Forcasts & Reality
vs.
Averages

 

 

 

 

 

 

 

 

2017
Snowpack

7

Clear
Breezy Afternoon
WARM
-COOLER

Persistant
Low Over S Nevada
Moving a Bit

 

Warnings
JUNE 7 UPDATE

 

Rapid Thaw Underway

Rivers Growing

 


RED FLAG
ADVISORY

&
FORDING
HAZARDS

Sacto-----Hanford

HAZARDS

 

 

BEST
FORECASTS

Precipitation
General

Quantitative Precipitation Forecasts:
ALL
RAIN FORECASTS
&
MODELS

 

Direct to
Seven Day Precip
Animation

 

Precipitation
Geographic

All High Sierra
ZONE & POINT
FORECASTS

 

All High Sierra
ZONE
FORECASTS

 

Now

RADAR

 

Direct
to
GRAPHICAL INTERFACE

Forecast
Winds? Weather?

NorCal Graphics

Region, SW US

 

Forecast
Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model,
observe using step button

All Temps

 

Let's look at the
Big Picture
Surface Map

The Pacific Ocean

US Weather Map

All Maps

 

 

 

 

 

2015
T-storms and Rain from
TS BLANCA (2015)
Raining on the Sierra Crest

1.1 inches of precip predicted over Sierra next 7 days.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

TOP

 

8

Clear
Breezy
WARM
ING UP

Persistant
Low Over S Nevada
MOVED OUT

 

Clear Night
COLD

Hazard

 

Rapid Thaw Underway

Rivers Growing

 

RED FLAG
ADVISORY,
EXCESSIVE HEAT,

&
FORDING
HAZARDS

Sacto-----Hanford

Hanford Heat

HAZARDS

2019
JUNE 8
HIGH SIERRA

21st
--Spring--
Temp-Snow Check

Last Report:
June 2 , 2019

Next Report:
June 12, 2019

Let's check our reporting station snow & temp readings after the last 5 days of clearing and warming weather.

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, noting the change in snow depths and temps since our last readings.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

The Thaw: It's Coming

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
15" −20
7618 feet
Trail Map
(48.90 H2O) 0.2
51 & 36 /

PCT-TYT-TRT
Echo Peak

11"
−26"
7652 feet
Stations Map
(68.50 H2O) +0.1
52 & 34 /

American-Yuba Watersheds

PCT-TYT
Carson Pass
21" −18
8388 feet
Trail Map
Stations Map
(49.80" H2O) +0.1
51 & 31 /

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
41" −
18
8660 feet
Trail Map
(65.80 H2O) =0.0
52 & 29 /

West of PCT
Highlands Meadow

0.00" =0.00
8360 feet
Trail Map
(49.56) +0.22
46 & 28 /

EAST FLANK
Leavitt Lake

137"
16
9602 feet, East Flank
Trail Map
(67.90 H20) 0.1
49 & 26 /

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
82 & 41 +/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

0.00" −5.93
9250 feet,West Flank,
Trail Map
(30.47" H20) =0.00"
51 & 29 /

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
118.30"
+15.6 ??
8602 feet
Trail Map
(No H2O)
53 & 28 /

Tenaya Lake
6.11
−16.82"
8163 feet, West Flank
Trail Map
(22.94") H20 +0.11"
63 & 27 +/

JMT-PCT-TYT
Tuolumne Meadows

1.20" +1.09"
8600 feet, West Flank
Trail Map
(8.90") H20 +0.26"
63 & 26 +/

Tioga Pass/Dana
25.81" −11.28
9798 feet
Trail Map
15.72 H20
+0.02
47 & 24 /

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

133.50" −17.50 ERROR?
10750 feet
Trail Map
(00.00 H2O) 31.56 ??
temps bad

JMT-PCT Junction
Devils Postpile

2.72" −0.39
8004 feet
Trail Map Above
(0.0) =
64 & 31 +/=

NE of JMT-PCT
Mammoth Pass

86.92" Sno −15.61
9500 feet
Trail Map
59.24" H2O +0.24
57 & 26 +/−

JMT-PCT
E of Bear Ridge

Volcanic Knob

50.40" −13.2"
10100 feet
Trail Map
(0.00)
64 & 24 +/−

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.10 H2O) =0.00
58 & 29 +/−

East Flank
Big Pine Sawmill

22.30" Snow −10.5
10200 feet, East Flank
Trail Map Above
51 & 26 +/−

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

43.09" Snow −15.91
10398 feet, West Flank
Trail Map
60.21 H2O +0.26
57 & 28 +/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

67.07" −7.76"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
58 & 38 +/+

JMT
Crabtree Meadow

4.21" Snow −13.1"
10,700 feet
Trail Map
(25.42 H2O) +0.35
61 & 32 +/+

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

9

Clear
Light Breezes
WARM
ING UP

 

Persistant
Low Over S Nevada
REFORMED

 


Rapid Thaw Underway

Rivers Growing

 

RED FLAG
ADVISORY,
EXCESSIVE HEAT,

&
FORDING
HAZARDS

Sacto-----Hanford

Reno Walker R Fording

Hanford Heat

HAZARDS

Heat Hazard

Fording Hazard

Snow travel Hazard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snowpack, June 9

 

 

2017
Snowpack

10

Clear
Light Breezes
HOT

HEAT WAVE

Persistant
Low Over S Nevada
REFORMED

(But not pulling tropical Moisture into E Sierra, as during last week)

Rapid Thaw Underway

Rivers Growing

 

RED FLAG
ADVISORY,
EXCESSIVE HEAT,

&
FORDING
HAZARDS

Sacto-----Hanford

Reno Walker R Fording

Hanford Heat

HAZARDS

Heat Hazard

Fording Hazard

Snow travel Hazard

 

2019
Current Snowpack:
Percent of Average for
June 10.

N Sierra: 176%
−5% in 4 days

Cen. Sierra: 178%
−27% in 4 days

S Sierra: 175%
−13% in 4 days

Ca State: 175%
−15% in 4 days

Last Reading
June 6

Statewide Summary of Snow Water Content PDF

 

 

Let's look at the
Big Picture
MAP
The Pacific Ocean

All Maps

 

 

THE
CURRENT SNOWPACK

Current Conditions
All Snow Information

GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack
Status
THE 9th

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
6-9-19

 

OBSERVATIONS
All
High Sierra
Reporting Stations

 

Temp & Snow Tables
by Watershed and Highway Corridor

ALL
SNOW RESOURCES

ALL
WATER RESOURCES

 

11

Clear
Light Breezes
HOT

HEAT WAVE

Persistant
Low Over S Nevada
REFORMED

(But not pulling tropical Moisture into E Sierra, as during last week)

Rapid Thaw Underway

Rivers Growing

 

RED FLAG
ADVISORY,
EXCESSIVE HEAT,

&
FORDING
HAZARDS

Sacto-----Hanford

Reno Walker R Fording

Hanford Heat

HAZARDS

Heat Hazard

Fording Hazard

Snow travel Hazard

Death Valley
115 to 120 degrees

 

 

 

 

Modis Satellite
Views

(Compare 2017, 18, & 19)

 

 

 

 

LAST WEEK

NEXT WEEK

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
Snowpack

 

12

Clear
Light Breezes
COOLER-COOLING

 

Persistant
Low Over S Nevada
REFORMED

(But not pulling tropical Moisture into E Sierra, as during last week)

Rapid Thaw Underway

Rivers Growing

 





FORDING
HAZARDS

Hanford

Reno Walker R Fording

 

HAZARDS

Hot Hazard

Fording Hazard

Snow Travel Hazard

 

 

2019
JUNE 12
HIGH SIERRA

22st
--Spring--
Temp-Snow Check

Last Report:
June 8 , 2019

Next Report:
June 14, 2019

Let's check our reporting station snow & temp readings after the last 2 days of a heat wave, followed by relief today

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, noting the change in snow depths and temps since our last readings.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

The Thaw: It's Coming

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
6" −9
7618 feet
Trail Map
(49.00 H2O) +1.1
69 & 53 +/+

PCT-TYT-TRT
Echo Peak

0.0"
−11"
7652 feet
Stations Map
(68.40 H2O) 0.1
69 & 53 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
9" −12
8388 feet
Trail Map
Stations Map
(49.80" H2O) =0.0
66 & 44 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
30" −
11
8660 feet
Trail Map
(65.90 H2O) +0.1
66 & 50 +/+

West of PCT
Highlands Meadow

0.00" =0.00
8360 feet
Trail Map
(49.75) +0.19
64 & 41 +/+

EAST FLANK
Leavitt Lake

128"
9
9602 feet, East Flank
Trail Map
(67.80 H20) 0.1
64 & 51 +/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
101 & 43 +/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

0.62" +0.62
9250 feet,West Flank,
Trail Map
(30.79" H20) +0.32"
66 & 37 +/+

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
5.4"
−112.9 ??
8602 feet
Trail Map
(No H2O)
67 & 35 +/+

Tenaya Lake
3.70
−2.41"
8163 feet, West Flank
Trail Map
(22.94") H20 =0.00"
69 & 39 +/+

JMT-PCT-TYT
Tuolumne Meadows

1.48" +0.28"
8600 feet, West Flank
Trail Map
(8.90") H20 =0.00"
71 & 37 +/+

Tioga Pass/Dana
15.53" −10.28
9798 feet
Trail Map
15.72 H20
=0.00
64 & 37 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

152.90" +19.4 ERROR? !!
10750 feet
Trail Map
(00.00 H2O) 31.56 ??
temps bad

JMT-PCT Junction
Devils Postpile

3.25" +0.53
8004 feet
Trail Map Above
(0.0) =
72 & 38 +/+

NE of JMT-PCT
Mammoth Pass

76.88" Sno −10.04
9500 feet
Trail Map
59.28" H2O +0.04
66 & 44 +/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

41.40" −9"
10100 feet
Trail Map
(0.00)
68 & 35 +/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.10 H2O) =0.00
70 & 43 +/+

East Flank
Big Pine Sawmill

14.60" Snow −7.7
10200 feet, East Flank
Trail Map Above
62 & 39 +/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

35.71" Snow −7.38
10398 feet, West Flank
Trail Map
60.32 H2O +0.11
62 & 38 +/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

62.61" −4.46"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
62 & 42 +/+

JMT
Crabtree Meadow

0.00" Snow −4.21"
10,700 feet
Trail Map
(25.46 H2O) +0.04
65 & 38 +/+

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

13

Clear
Light Breezes
WARM but COOLER

 

Persistant
Low Over S Nevada
REFORMED

(But not pulling tropical Moisture into E Sierra, as during last week)

Rapid Thaw Underway

Rivers Growing

 





FORDING
HAZARDS

Hanford

Reno Walker R Fording

HAZARDS

 

Fording Hazard

Snow Travel Hazard

 

 

2019
Current Snowpack:
Percent of Average for
June 13.

N Sierra: 156%
−20% in 3 days

Cen. Sierra: 154%
−24% in 3 days

S Sierra: 156%
−19% in 3 days

Ca State: 153%
−22% in 3 days

Last Reading
June 10

Next Reading
June 17

Statewide Summary of Snow Water Content PDF

 

 

 

 

More
High Sierra
Backpacker Information

Guide Trailhead

Guide Index

High Sierra Magazine

HIGH SIERRA TRAILS FORUMS

HIGH SIERRA TOPICS FORUMS

GEAR FORUMS

GEAR LIST

 

 

 

 

 

2018
Snowpack, June 14

 

 

 

2017
Sonora Pass Opens

 

14

Clear
Light Breezes
WARM

 

Persistant
Low Over S Nevada
REFORMED

(But not pulling tropical Moisture into E Sierra, as during last week)

Rapid Thaw Underway

Rivers Growing

 





FORDING
HAZARDS

San Joaquin Fording

Reno Walker R Fording

Vegas SE Sierra Fording

HAZARDS

 

Fording Hazard

Snow Travel Hazard

 

 

2019
JUNE 14
HIGH SIERRA

23rd
--Spring--
Temp-Snow Check

Last Report:
June 12 , 2019

Next Report:
June 16, 2019

Let's check our reporting station snow & temp readings after the last 2 days of cooling, but still warm weather.

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, noting the change in snow depths and temps since our last readings.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

The Thaw: It's Coming

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
0.40" −5.6
7618 feet
Trail Map
(49.00 H2O) =0.0
65 & 50 −/−

PCT-TYT-TRT
Echo Peak

0.0"
=0"
7652 feet
Stations Map
(68.40 H2O) =0.0
68 & 49 −/−

American-Yuba Watersheds

PCT-TYT
Carson Pass
1.4" −7.6
8388 feet
Trail Map
Stations Map
(49.70" H2O) 0.1
64 & 41 −/−

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
20" −
10
8660 feet
Trail Map
(65.80 H2O) 0.1
66 & 46 =/

West of PCT
Highlands Meadow

0.00" =0.00
8360 feet
Trail Map
(49.98) +0.24
66 & 37 +/

EAST FLANK
Leavitt Lake

121"
7
9602 feet, East Flank
Trail Map
(67.80 H20) =0.0
61 & 45 −/−

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
97 & 48 /+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

0.69" +0.07
9250 feet,West Flank,
Trail Map
(30.74" H20) 0.05"
66 & 35 =/

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
150.1"
+144.7 ??
8602 feet
Trail Map
(No H2O)
65 & 31 −/−

Tenaya Lake
3.45
−0.25"
8163 feet, West Flank
Trail Map
(22.94") H20 =0.00"
68 & 34 −/−

JMT-PCT-TYT
Tuolumne Meadows

0.55" −0.93"
8600 feet, West Flank
Trail Map
(8.90") H20 =0.00"
69 & 34 −/−

Tioga Pass/Dana
10.83" −4.7
9798 feet
Trail Map
15.72 H20
=0.00
59 & 33 −/−

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

150.30" −2.6 ERROR? !!
10750 feet
Trail Map
(00.00 H2O) 00.00 ??
temps bad

JMT-PCT Junction
Devils Postpile

1.73" −1.52
8004 feet
Trail Map Above
(0.0) =
72 & 36 =/

NE of JMT-PCT
Mammoth Pass

69.32" Sno −7.56
9500 feet
Trail Map
59.28" H2O =0.00
65 & 40 −/−

JMT-PCT
E of Bear Ridge

Volcanic Knob

35.00" −6.4"
10100 feet
Trail Map
(0.00)
64 & 31 −/−

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.10 H2O) =0.00
68 & 38 −/−

East Flank
Big Pine Sawmill

10.40" Snow −4.2
10200 feet, East Flank
Trail Map Above
61 & 34 −/−

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

27.87" Snow −7.84
10398 feet, West Flank
Trail Map
60.39 H2O +0.97
59 & 34 −/−
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

58.32" −4.29"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
58 & 40 −/−

JMT
Crabtree Meadow

0.00" Snow −0.00"
10,700 feet
Trail Map
(25.61 H2O) +0.15
60 & 37 −/−

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

 

15

Clear
Light Breezes
WARM

 

Persistant
Low Over S Nevada

(But not pulling tropical Moisture into E Sierra, as during last week)

Rapid Thaw Underway

Rivers Growing

HEAVY FLOWS

Afternoon Lightening?
Slight Chances


FORDING
HAZARDS

San Joaquin Fording

Reno Walker R Fording

Vegas SE Sierra Fording

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

LAST WEEK

NEXT WEEK

TOP

 

 

SPRING THAW

RIVER INFORMATION

RESERVOIRS

HAZARDS

 

 

BEST
FORECASTS

Precipitation
General

Quantitative Precipitation Forecasts:
ALL
RAIN FORECASTS
&
MODELS

 

Direct to
Seven Day Precip
Animation

 

Precipitation
Geographic

All High Sierra
ZONE & POINT
FORECASTS

 

All High Sierra
ZONE
FORECASTS

 

Now

RADAR

 

Direct
to
GRAPHICAL INTERFACE

Forecast
Winds? Weather?

NorCal Graphics

Region, SW US

 

Forecast
Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model,
observe using step button

All Temps

 

Let's look at the
Big Picture
Surface Map

The Pacific Ocean

US Weather Map

All Maps

 

 

 

 

 

2017
Current Snowpack

VAST
Percent of Average for
June 1.

Ca State: 226%

(% ofApril 1: 68%)

Compare against previous years.

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

TOP

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

16

Mostly Clear
Light Showers
across
Sierra Crest
WARM

Persistant
Low Over S Nevada

 

 

Rapid Thaw Underway

Rivers Growing

 





FORDING
HAZARDS

San Joaquin Fording

Reno Walker R Fording

Vegas SE Sierra Fording

HAZARDS

 

Fording Hazard

Snow Travel Hazard

 

 

2019
JUNE 16
HIGH SIERRA

24th
--Spring--
Temp-Snow Check

Last Report:
June 14 , 2019

Next Report:
June ?, 2019

Let's check our reporting station snow & temp readings after the last 2 days of warm weather bringing high thaw and runoff through the Sierra.

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, noting the change in snow depths and temps since our last readings.

A NEW WATER YEAR:
LAST YEAR
Total Precipitation

58 % of Average

A NEW WATER YEAR: Reservoirs

The Thaw: It's Coming

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
0.00" −0.40
7618 feet
Trail Map
(49.00 H2O) =0.0
67 & 50 +/−

PCT-TYT-TRT
Echo Peak

0.0"
=0"
7652 feet
Stations Map
(68.40 H2O) =0.0
66 & 48 −/−

American-Yuba Watersheds

PCT-TYT
Carson Pass
0.0" −1.4
8388 feet
Trail Map
Stations Map
(49.70" H2O) =0.0
65 & 40 +/−

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
17" −
3
8660 feet
Trail Map
(66.20 H2O) 0.4
65 & 40 /

West of PCT
Highlands Meadow

0.00" =0.00
8360 feet
Trail Map
(49.66) 0.32
63 & 37 /

EAST FLANK
Leavitt Lake

116"
5
9602 feet, East Flank
Trail Map
(67.90 H20) +0.1
59 & 47 −/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
96 & 45 /

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

0.84" +0.15
9250 feet,West Flank,
Trail Map
(30.74" H20) +2.18" ??
65 & 34 +/+

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
5.40"
−144.7 ??
8602 feet
Trail Map
(No H2O)
69 & 32 +/+

Tenaya Lake
2.78
−0.67"
8163 feet, West Flank
Trail Map
(23.01") H20 +0.07"
68 & 34 =/=

JMT-PCT-TYT
Tuolumne Meadows

0.97" +0.42"
8600 feet, West Flank
Trail Map
(9.33") H20 +0.43"
69 & 34 =/=

Tioga Pass/Dana
8.12" −2.71
9798 feet
Trail Map
15.88 H20
+0.16
61 & 35 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

148.20" −2.1
10750 feet
Trail Map
(00.00 H2O) 00.00 ??
temps bad

JMT-PCT Junction
Devils Postpile

3.05" +1.32
8004 feet
Trail Map Above
(0.0) =
71 & 37 /+

NE of JMT-PCT
Mammoth Pass

65.69" Sno −3.63
9500 feet
Trail Map
59.28" H2O =0.00
68 & 42 +/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

31.00" −4"
10100 feet
Trail Map
(0.00)
65 & 32 +/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.10 H2O) =0.00
68 & 42 =/+

East Flank
Big Pine Sawmill

2.90" Snow −7.5
10200 feet, East Flank
Trail Map Above
58 & 36 −/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

23.66" Snow −4.21
10398 feet, West Flank
Trail Map
60.37 H2O -0.02
59 & 37 =/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

51.48" −6.84"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
54 & 42 −/+

JMT
Crabtree Meadow

0.00" Snow =0.00"
10,700 feet
Trail Map
(25.43 H2O) 0.18
60 & 37 =/=

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

2017
Snowpack

2017
HEATWAVE WEATHER HAZARD WARNING

17

Clear
Light Breezes
T-STORM AFTERNOON
WARM

Persistant
Low Over S Nevada

 

 

Rapid Thaw Underway

Rivers Growing

HEAVY FLOWS

Afternoon Lightening?
Moderate Chances




FORDING
HAZARDS

San Joaquin Fording

Reno Walker R Fording

Vegas SE Sierra Fording

HAZARDS

 

Fording Hazard

Snow Travel Hazard

 

2019
Current Snowpack:
Percent of Average for
June 17.

N Sierra: 102%
−54% in 4 days

Cen. Sierra: 120%
−34% in 4 days

S Sierra: 135%
−21% in 4 days

Ca State: 120%
−33% in 4 days

Last Reading
June 13

Statewide Summary of Snow Water Content PDF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2015
Tuolumne Meadows Post Office reports busiest times ever.

18

Clear
Light Breezes
WARM

Persistant
Low Over S Nevada

 

 

Rapid Thaw Underway

Rivers Growing

HEAVY FLOWS

 




FORDING
HAZARDS

San Joaquin Fording

Reno Walker R Fording

Vegas SE Sierra Fording

HAZARDS

 

Fording Hazard

Snow Travel Hazard

 

Informative
"Normal" Vs. Now

Forcasts & Reality
vs.
Averages

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snowpack
Percent of Average for
June 18

+/- change since
May 29

N Sierra: 9%
(-2%)

Cen. Sierra: 0%
(-11%)

S Sierra: 0%
(-5%)

Ca State: 0%
(-9%)

Last
May 29

Statewide Summary of Snow Water Content PDF

 

19

Clear
Increasing Breezes
WARM

Persistant
Low Over S Nevada

 

 

Rapid Thaw Underway

Rivers Growing

HEAVY FLOWS

 



WIND

FORDING
HAZARDS

San Joaquin Fording

Reno Walker R Fording

Vegas SE Sierra Fording

Vegas S Sierra Wind

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

Modis Satellite
Views

(Compare 2017, 18, & 19
)

Current Sat Views

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
HEATWAVE WEATHER HAZARD WARNINGS

Heat Hazard

Fording Hazard

Snow travel Hazard

 

 

2015
North Sierra SNOW FREE
South Sierra rapidly losing thin pack along crestline.

20

Killer Day-Clear
Breezes
Cooler, but WARM

Persistant
Low Over S Nevada

 

 

Rapid Thaw Underway

Rivers Growing

HEAVY FLOWS

 



FORDING
HAZARDS

Reno Walker R Fording

 

Vegas S Sierra Wind

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

 

2019
Current Snowpack:
Percent of Average for
June 20.

N Sierra: 73%
−29% in 3 days

Cen. Sierra: 104%
−16% in 3 days

S Sierra: 121%
−14% in 3 days

Ca State: 101%
−19% in 3 days

Last Reading
June 17

Next Reading
June ?

Statewide Summary of Snow Water Content PDF

 

 

 

 

 

 

 

 

 

 

 

 

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2017
Snowpack

21

Summer Solstice
15:54 Zulu Time
8:54 PDT

Time References

 

 

BEST
FORECASTS

Precipitation
General

Quantitative Precipitation Forecasts:
ALL
RAIN FORECASTS
&
MODELS

 

Direct to
Seven Day Precip
Animation

 

Precipitation
Geographic

All High Sierra
ZONE & POINT
FORECASTS

 

All High Sierra
ZONE
FORECASTS

 

Now

RADAR

 

Direct
to
GRAPHICAL INTERFACE

Forecast
Winds? Weather?

NorCal Graphics

Region, SW US

 

Forecast
Temperatures

Model
Five Day Mean
Low Temps

Click Green "Latest" Model,
observe using step button

All Temps

 

Let's look at the
Big Picture
Surface Map

The Pacific Ocean

US Weather Map

All Maps

 

 

 

22

 

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SPRING THAW

RIVER INFORMATION

RESERVOIRS

HAZARDS

 

 

THE
CURRENT SNOWPACK

Current Conditions
All Snow Information

GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack
Status
THE 16th

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
6-16-19

 

OBSERVATIONS
All
High Sierra
Reporting Stations

 

Temp & Snow Tables
by Watershed and Highway Corridor

ALL
SNOW RESOURCES

ALL
WATER RESOURCES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

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TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Sunday Monday Tuesday Wednesday Thursday Friday Saturday

23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
Snowpack

24

 

 

 

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2017
HEATWAVE WEATHER HAZARD WARNINGS

EXPIRED

FLOOD
HAZARD WARNINGS
EXTENDED

2017
Flood Warnings extended along length of East Sierra. in pm precip hits North Ca Coast, Northernmost Sierra.

 

 

2015
REPORTS:
Heat Wave Building in,
Thunderstorm Mechanism is operating, enhanced by trough bringing moisture-rich air North.

Valley temps up to 103 this next week. These temps can drive fierce T-Storms.

25

 

 

 

 

 

 

 

 

 

 

 

26

 

REALTIME
High Sierra Crestline
Reporting Stations

(Compare with the 12th)

Echo Peak
7652 feet

Carson Pass
8388 feet

Ebbetts Pass
8660 feet

Leavitt Lake
9602 feet

Marine Base
6748 feet East Flank

Deadman Creek
9250 feet

Tuolumne Meadows
8600 feet

Tioga Pass/Dana
9798 feet

Gem Pass
10750 feet

Mammoth Pass
9500 feet

South Lake Cabin
9580 feet

Big Pine Sawmill
10200 feet

Bishop Pass
11972 feet

Charlotte Lake
10398 feet

Upr Tyndall Creek
11441 feet

Crabtree Meadow
10,700 feet

 

All High Sierra
Reporting Stations

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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28

 

 

HAZARDS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

 

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Sunday Monday Tuesday Wednesday Thursday Friday Saturday

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
Snowpack

1 JULY

 

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2 JULY

 

 

 

 

 

Past Rainfall

Rain Forecasts & Models

High Sierra Weather Page

 

 

 

 

 

 

 

 

 

 

 

3 JULY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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4 JULY

5 JULY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6 JULY

 

 

HAZARDS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Top of Page

 

End of May

July

 

2019

January       February     March       April       May       June

July     August     September       October       November       December

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 

Seasonal NOTES:
The Snowpack on the Sierra, storm activity, and temps during June are going to allow us to get a bead on when the Sierra Trails across the High Passes will start opening up, as well as the trails approaching them.

High Sierra Backpacker Weather

When the snows melt millions of mosquitoes rise from the saturated soils. It starts low down the mountain early in Spring and rises up the mountainside as Spring progresses. Be ready for the rising clouds of mosquitoes.

High Sierra MOSQUITOES

MARCH 2015 OBSERVATION REGARDING SPRING-EARLY SUMMER:
Everybody will open early, unless prohibited by use agreements. The issue driving behavior in June is going to be fires, not snowpack. This year is shaping up to have the hottest Wintertime temperatures pushing earliest opening of the Sierra trails and resorts with the least amount of snow and rain recorded since the Western settlement of California.

JUNE 2015 REPORTS:
A very warm unsettled month of May has brought continued unsettled Weather conditions into June. The overnight temps have been above freezing since late May, and the tropical remnants of Blanca appear to be scouring the remaining snow off the South Sierra quite quickly on June 10.
I expect a regular groove to be cut by hikers through what snow remains in the South Sierra mountain Passes along the JMT by the start of June.

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 


Permits
Only remnants of reserved permits are available out of Yosemite, Mount Whitney Zone, and Desolation Wilderness.
Through-hiker permits into or across these areas are still available.

Permits

Yosemite Permits

Desolation Wilderness

Hoover Wilderness

 

June 24 2015 REPORTS:
ENSO activity seems to be tormenting the central-East US with tropical moisture appearing as tornadoes and T-storms. The "gunsight" that points this energy our way is not seasonally adjusted to point at the Sierra, but it looks like the "clip" is full.

This means that as Fall cooling beings these tropical flows could be pointed our way, if ocean heating trends continue.

Or not. We could just as easily maintain drought conditions. I put the chances at tropical El Nino Fall rains at 50-50 from today's perspective.

Bookends of High Sierra Experience

JUNE
2015

RECORD MINIMAL SNOW PACK

 

JUNE
2017

MASSIVE, RECORD SNOW PACK

 

2015 & 2016
ASSESMENTS

Tropical Thunderstorms, Rain and Snowstorms from supercharged El Nino torment lightly-geared PCT Hikers.
2015 NO THAW TO SPEAK OF: IT IS OVER.

2016 THAW PROGRESSING ON "TRADITIONAL," if a bit-A MONTH-earlier than "AVERAGE" SIERRA THAW TIMELINE.

 

The real danger of June is found between the swollen banks of rivers and even normally small placid creeks, surging with the power of the Spring Thaw. (Not this year)

During heavy Spring Thaws one can hear the grinding of unseen great granite boulders as supercharged river flows easily roll them downstream. (Not this year)

Carefully assess all river crossings, have contingency plans for being knocked down and losing your pack, and turn around if the dangers are too great. (All Years)

Happy Trails!

Tahoe to Whitney

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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

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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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