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

 

July
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

 

2019
THIS YEAR
News, Views, & Issues

2019
High Sierra
News
Spring
of
2019
2019
Natural Meltdown

 

2018
LAST YEAR
News, Views, & Issues
JULY
2018
High Sierra
News
JULY
2018
Backpacker
Alerts
2018
Natural Meltdown

 

2017
News, Views, & Issues
JULY
2017
High Sierra
News
JULY
2017
Backpacker
Alerts
2017
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

 

July
2019

Week 1

Week 2

Week 3

Week 4

Week 5

TRAILHEAD

Last Year

 

July 2019
Volunteer and Double Peaks

East Carson River just below PCT under April Snow.
Descending towards Bensen Lake we observe the massive climb following our descent when we continue South from Bensen. This is one of the hardest sections of the whole Tahoe to Whitney hike.

North Yosemite Backcountry
Trail Guide
           Map           Miles and Elevations

July 2019

Top of Page

January       February     March       April       May       June     July     August     September       October       November       December
2019 Monday Tuesday Wednesday Thursday Friday Saturday

LAST MONTH

NEXT WEEK

TOP

 

 

 

JULY 2019

 

Backpackers
Shift to Summer Gear well under way. Be ready for last bursts of Spring Weather.
Ignore the Calendar.
Gear up for the Conditions on the Ground, not a Date on the Calendar.

High Sierra Backpacker Weather

ON THE TRAIL

2019 REPORTS
Chaos on the Crest

2018 REPORTS
Trails Open on the Crest

2017 REPORTS
Chaos on the Crest

 

2015 REPORTS
July 2015
Current chances of experiencing
SEVERE WEATHER are INCREASED.

 

1

Clear
Temperate

Rapid Thaw Underway

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

Highway 120,
Tioga Road
Fully Opening July 1, 2019

Road Information

 

 

LAST MONTH

NEXT WEEK

TOP

 

 

2019
Heavy Spring Snowpack Persisting into Summer

 

2018
Snowpack
(June 14-snow about gone)

 

2017
Snowpack
(extensive at this time)

 

2015
Snowpack
(nothing at this time)

 

 

 

2017

WARNINGS
through
Fourth of July:

Fording Hazard

Snow travel Hazard

 

Top

2

Clear
Temperate

Rapid Thaw Underway

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

2019
Current Snowpack:
Percent of Average for
July 2.

N Sierra: 108%
+28% in 5 days

Cen. Sierra: 73%
−18% in 5 days

S Sierra: 27%
−32% in 5 days

Ca State: 71%
−9% in 5 days

Last Reading
June 27

Next Reading
July 8

Statewide Summary of Snow Water Content PDF

 

 

 

2019
JULY 2
HIGH SIERRA

SECOND
--Summer--
Temp-Snow Check

Last Report:
June 23, 2019

Next Report:
July 7, 2019

Let's check our reporting station snow & temp readings after the last 9 days of warm weather bringing heavy 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"=
7618 feet
Trail Map
(49.00 H2O) + 0.1
64 & 45 −/−

PCT-TYT-TRT
Echo Peak

0.0"
=
7652 feet
Stations Map
(68.40 H2O) =0.0
61 & 47 −/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
0.0"
8388 feet
Trail Map
Stations Map
(49.90" H2O) =0.0
60 & 40 −/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
0" =

8660 feet
Trail Map
(66.30 H2O) = 0.0
58 & 44 −/+

West of PCT
Highlands Meadow

0.29" +.29
8360 feet
Trail Map
(49.78) + 0.03
58 & 38 −/+

EAST FLANK
Leavitt Lake

76"
22
9602 feet, East Flank
Trail Map
(67.80 H20)0.2
55 & 45 −/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
95 &40 +/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

0.64" +0.32
9250 feet,West Flank,
Trail Map
(32.76" H20) −0.27"
58 & 33 =/+

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
ERROR"
− ??
8602 feet
Trail Map
(No H2O)
57 & 31 −/=

Tenaya Lake
0.06"
-0.06
8163 feet, West Flank
Trail Map
(23.19") H20 =0.00"
65 & 34 =/−

JMT-PCT-TYT
Tuolumne Meadows

3.21" +2.57"
8600 feet, West Flank
Trail Map
(9.34") H20 =0.00"
66 & 30 +/

Tioga Pass/Dana
180.3" +0.8 ??
9798 feet
Trail Map
15.90 H20
=0.00
59 & 33 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

143.60" −2.8 ???
10750 feet
Trail Map
(00.00 H2O) 00.00 ??
temps bad

JMT-PCT Junction
Devils Postpile

2.26" -0.11
8004 feet
Trail Map Above
(0.0) =
67 & 32 +/

NE of JMT-PCT
Mammoth Pass

22.71" Sno −23.59
9500 feet
Trail Map
59.32" H2O =0.00
61 & 38 +/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

1.10" −6.6"
10100 feet
Trail Map
(0.00)
59 & 32 −/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.20 H2O) =0.00
67 & 43 +/+

East Flank
Big Pine Sawmill

2.0" Snow +2.0
10200 feet, East Flank
Trail Map Above
61 & 38 +/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

0.00" Snow −.41
10398 feet, West Flank
Trail Map
60.39 H2O -0.13
58 & 34 +/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

23.33" −18.83"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
63 & 44 +/+

JMT
Crabtree Meadow

0.00" Snow =0.00"
10,700 feet
Trail Map
(25.36 H2O) 0.25
65 & 38 +/+

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

3

Clear
Temperate

Rapid Thaw Underway

"Temperate"
Not too Hot,
Not too Cold!

 

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

SPRING THAW

RIVER INFORMATION


RESERVOIRS

Watersheds and Selected Network of Crestline Sensors

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

4

Clear
Temperate
-Warming

Rapid Thaw Underway


Minaret Summit Road
OPENS TODAY

 

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

Clear
Temperate
-Warming

Rapid Thaw Underway

 

Modis Satellite
Views

Compare
2015, 17, 18, & 19

Current Sat Views

 

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
Snowpack & Temps

 

 

 

 

6

Clear
Warm
Afternoon Cloudy

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

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

 

 

 

 

 

 

 

 

 

 

 

2018
HEATWAVE WEATHER HAZARD WARNINGS

Looks Hot for the Next Five Days...

T-Storms
Wednesday

 

 

TRANSPO
Most 2017
Trans-Sierra Highways & Road NEWS

Very Late Openings

High Points:

June 21
Bishop Creek Shuttle runs

June 21
Lakes Basin Road open, Mammoth

June 28
Road to Spicer Open

Reds Road Closed

June 29
Tioga Pass Opens

June 30
Ebbetts Pass Opens

High Sierra Transportation Resources

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

TOP



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

TOP

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

7

Clear
Warm-Cloudy

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

2019
JULY 7
HIGH SIERRA

THIRD
--Summer--
Temp-Snow Check

Last Report:
July 2, 2019

Next Report:
July ?, 2019

Let's check our reporting station snow & temp readings after the last 5 days of warm weather bringing heavy 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"=
7618 feet
Trail Map
(49.10 H2O) + 0.1
62 & 52 −/+

PCT-TYT-TRT
Echo Peak

0.0"
=
7652 feet
Stations Map
(68.50 H2O) +0.1
66 & 50 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
0.0"
8388 feet
Trail Map
Stations Map
(49.90" H2O) =0.0
58 & 42 −/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
0" =

8660 feet
Trail Map
(66.20 H2O)0.1
58 & 44 =/=

West of PCT
Highlands Meadow

0.44" +.15
8360 feet
Trail Map
(49.75)0.03
59 & 38 +/=

EAST FLANK
Leavitt Lake

61"
15
9602 feet, East Flank
Trail Map
(67.80 H20) = 0.0
55 & 46 =/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
93 & 43/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

0.72" +0.08
9250 feet,West Flank,
Trail Map
(32.87" H20) +0.11"
58 & 34 =/=

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
ERROR"
− ??
8602 feet
Trail Map
(No H2O)
57 & 33 =/+

Tenaya Lake
0.07"
+0.01
8163 feet, West Flank
Trail Map
(23.19") H20 =0.00"
64 & 36 −/+

JMT-PCT-TYT
Tuolumne Meadows

2.61" −0.6"
8600 feet, West Flank
Trail Map
(9.34") H20 =0.00"
62 & 33 −/+

Tioga Pass/Dana
180.7" +0.4 ??
9798 feet
Trail Map
15.90 H20
=0.00
55 & 33 /=

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

15X.XX" −2.8 ERROR
10750 feet
Trail Map
(00.00 H2O) 00.00 ??
temps bad

JMT-PCT Junction
Devils Postpile

2.39" +0.13
8004 feet
Trail Map Above
(0.0) =
64 & 36 /+

NE of JMT-PCT
Mammoth Pass

7.69" Sno −15.02
9500 feet
Trail Map
59.32" H2O =0.00
59 & 40 −/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

1.0" −0.1"
10100 feet
Trail Map
(0.00)
57 & 34 −/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.20 H2O) =0.00
63 & 45 −/+

East Flank
Big Pine Sawmill

2.3" Snow +0.3
10200 feet, East Flank
Trail Map Above
57 & 38 −/=

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

0.00" Snow −.41
10398 feet, West Flank
Trail Map
60.35 H2O 0.04
56 & 36 −/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

14.44" −8.89"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
60 & 42 −/−

JMT
Crabtree Meadow

0.00" Snow =0.00"
10,700 feet
Trail Map
(25.36 H2O) = 0.0
61 & 36 −/−

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

8

Clear
Warm-Cooler

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

2019
Current Snowpack:
Percent of Average for
July 8.

N Sierra: 176%
+68% in 6 days

Cen. Sierra: 0%
−73% in 6 days

S Sierra: 0%
−27% in 6 days

Ca State: 33%
−38% in 6 days

Last Reading
July 2

Next Reading
July ?

Statewide Summary of Snow Water Content PDF

 

 

Still
LOTS of SNOW
at
High Elevations and Protected NE Facing Aspects, See:

Modis Satellite
Views

Compare
2015, 17, 18, & 19

Current Sat Views

 

 

 

 

2018
GEORGES FIRE Whitney Portal

 

 

 

 

Top

 

 

9

 

 

THE
CURRENT SNOWPACK

Current Conditions

All Snow Information

GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack
Status
THE 7th

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
7-7-19

 

 

OBSERVATIONS

All
High Sierra
Reporting Stations

 

Temp & Snow Tables
by Watershed and Highway Corridor

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

Top

10

Clear
Warming

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
Snowpack & Temps

11

Clear
Warm to Hot

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

 

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

 

 

12

Clear
Hot

Rivers Fierce

HEAVY FLOWS

FORDING
HAZARDS

HAZARDS

Fording Hazard

Snow Travel Hazard

 

MOSQUITOES

Mosquitoes rise when the snows melt.

Mosquitoes are typically THICK right now.

A dry year? Then less skeeters. A wet year? Then more.

2015 was a good model for dry years, being the driest on record.

2017 provides a good model for wet years, as it recorded the most snow ever measured.

 

2015 Calendar

2017 Calendar

2018
has come in at roughly 50% of a "normal" Winter's average snowpack, putting us smack-dab in the middle, between the extremes of
2015 & 2017

 

13

Still
LOTS of SNOW
at
High Elevations and Protected NE Facing Aspects

 

LAST WEEK

NEXT WEEK

Top

 

 

 

 

 

SPRING THAW

RIVER INFORMATION


RESERVOIRS

Watersheds and Selected Network of Crestline Sensors

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

Top

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

14

Clear
HOT

Rivers Moderating

MODERATE FLOWS

Nonetheless...

FORDING
HAZARDS

continue

HAZARDS

Fording Hazard
Diminishing Soon

Snow Travel Hazard
Snow Breaking Down

 

 

2019
JULY 14
HIGH SIERRA

FOURTH
--Summer--
Temp-Snow Check

Last Report:
July 7, 2019

Next Report:
July ?, 2019

Let's check our reporting station snow & temp readings after the last 7 days of warm weather bringing heavy 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"=
7618 feet
Trail Map
(48.90 H2O) 0.2
70 & 55 +/+

PCT-TYT-TRT
Echo Peak

0.0"
=
7652 feet
Stations Map
(68.40 H2O)0.1
69 & 58 +/+

American-Yuba Watersheds

PCT-TYT
Carson Pass
0.0"
8388 feet
Trail Map
Stations Map
(49.70" H2O) 0.2
68 & 51 +/+

Carson-Walker
Watershed
s

PCT-TYT
Ebbetts Pass
0" =

8660 feet
Trail Map
(66.30 H2O) + 0.1
67 &54 +/+

West of PCT
Highlands Meadow

0.02" −.42
8360 feet
Trail Map
(50.08) + 0.33
54 & 43 +/+

EAST FLANK
Leavitt Lake

39"
22
9602 feet, East Flank
Trail Map
(68.00 H20) + 0.2
64 & 53 +/+

EAST FLANK
Marine Base
Cold Weather Training

6748 feet East Flank
Trail Map Above
FULL REPORT
VIS-CHIL-WEA-MB-
WIND
99 & 45 +/+

Mokelumne-Stanislaus Watersheds

PCT-TYT
Sonora Pass

Kennedy Meadows
RESUPPLY
Deadman Creek

0.39" +0.33
9250 feet,West Flank,
Trail Map
(33.25" H20) +0.38"
64 & 52 +/+

Tuolumne-Merced
Watersheds

SW of TYT
Horse Meadow
ERROR"
− ??
8602 feet
Trail Map
(No H2O)
63 & 39 +/+

Tenaya Lake
0.01"
−0.06
8163 feet, West Flank
Trail Map
(23.19") H20 =0.00"
69 & 41 +/+

JMT-PCT-TYT
Tuolumne Meadows

2.59" −0.03"
8600 feet, West Flank
Trail Map
(9.34") H20 =0.00"
69 & 36 +/+

Tioga Pass/Dana
ERROR" 0.0 ??
9798 feet
Trail Map
15.90 H20
=0.00
63 & 40 +/+

Mammoth Mountain

Mono Lake-Owens Basin

East of PCT-JMT
Above Gem Lake
Gem Pass

15X.XX" −0.0 ERROR
10750 feet
Trail Map
(00.00 H2O) 00.00 ??
temps bad

JMT-PCT Junction
Devils Postpile

2.39" −1.2
8004 feet
Trail Map Above
(0.0) =
72 & 38 +/+

NE of JMT-PCT
Mammoth Pass

0.00" Sno −7.69
9500 feet
Trail Map
59.32" H2O =0.00
68 & 48 +/+

JMT-PCT
E of Bear Ridge

Volcanic Knob

1.3" +0.3"
10100 feet
Trail Map
(0.00)
63 & 39 +/+

East Flank
South Lake Cabin

(Snow removed ")
9580 feet, East Flank
Trail Map
(27.20 H2O) =0.00
69 &50 +/+

East Flank
Big Pine Sawmill

0.1" Snow −1.2
10200 feet, East Flank
Trail Map Above
64 & 45 +/+

Kings River

Just East JMT-PCT
Bishop Pass

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

Just West JMT-PCT
Charlotte Lake

0.00" Snow =.00
10398 feet, West Flank
Trail Map
60.77 H2O +0.42
64 & 40 +/+
(Typically the coldest station)

Kern Watershed

JMT-PCT
Upr Tyndall Creek

2.43" −12.01"
11441 feet
Trail Map
(x.xx" H2O +x.xx")
64 & 45 +/+

JMT
Crabtree Meadow

0.00" Snow =0.00"
10,700 feet
Trail Map
(25.36 H2O) + 0.37
64 & 40 +/+

All High Sierra
Reporting Stations

More Stations, by Watersheds

 

 

2017
Heat Advisories.
Warm to Hot.

2016
Beautiful weather in the Sierra. Warm to Hot.

2015 REPORTS:
Remnants of Baja Ca Hurricane drawn North into LA, South Deserts, and bringing more tropical storms to Sierra Nevada:

LA Floods

Hwy 10 Closed by Flash Flood

15

 

 

 

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THE
CURRENT SNOWPACK

Current Conditions

All Snow Information

GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack
Status
THE 14th

 

NOAA-NOHRSC
SNOWPACK

The High Sierra
7-14-19

 

 

OBSERVATIONS

All
High Sierra
Reporting Stations

 

Temp & Snow Tables
by Watershed and Highway Corridor

 

16

 

 

Modis Satellite
Views

Compare
2015, 17, 18, & 19

Current Sat Views

 

 

 

 

 

 

 

 

 

 

2018
FERGUSON FIRE
Yosemite Foothills

HEAT ADVISORY
Valley-Foothills-Mountains

continuing
Warm to Hot

 

 


2016
Hot and Clear

 

 

2015 REPORTS:
It has been a "Tropical Summer," so far. This trend began in mid-May.

 

17

 

 

 

 

 

SPRING THAW

RIVER INFORMATION


RESERVOIRS

Watersheds and Selected Network of Crestline Sensors

 

 

 

 

 

 

 

 

2017
Snowpack & Temps

2017
Heavy snow at high altitudes preserves the:

SNOW TRAVEL HAZARD,
but now mostly limited to higher up the flanks & crest.

Still lots of snow on parts of Sierra Crest, less on others.

 

18

 

 

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

 

 

 

 

 

 

 

 

 


19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017
FULL SMOKE-FIRE ALERT

Detwiler Fire

Smoke inundates Tahoe-Carson-Reno areas, (alert)

All backpackers and visitors to the Sierra should check smoke and fire conditions. Smoke can be a real problem, even with no fire in near proximity.

Fire & Smoke

CalFire

Inciweb Fed

Smoke

All Recent Trail News

20

 

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Sunday Monday Tuesday Wednesday Thursday Friday Saturday

21

 

 

 

 

22

 

 

 

LAST WEEK

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23

 

 

 

 

 

 

 


24

 

 

 

 

 

 

 

 

 

2018

FIRE-SMOKE-HEAT
-WARNINGS-

Until Further Notice

 

Yosemite Valley & Wawona to be Closed to Public
from 25th to 29th

FERGUSON FIRE
Yosemite Foothills

 

25

 

2018

Yosemite Valley
Closed

26

 

 

 

 

 

 

 

 

 

LAST WEEK

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27

 

 

 

 

 

 

 

2018

Yosemite Delays opening Valley for five days, until August 3

Fire Information

 

 

2017
"The New Normal"
The Drought Never Ended

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

28

 

 

 

 

 

 

 

 

 

2018

CARR & CRANSTON FIRES,
Socal

 

2017
Detwiler Fire being brought under control, Tahoe Basin Fire Resrtictions.

29

 

 

 

 

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31

 

 

 

 

 

 

 

 

 

2018

Valley Opening Delayed to 8-5

 

ROAD NEWS
June Lake Loop Closed

 

2017
Snowpack & Temps


2017
Safety News
Fording Fatality on PCT.

Detwiler Fire 90% contained.

Trail News
July 31, 2017

2017
Heavy snow at high altitudes preserves the:

SNOW TRAVEL HAZARD,
but now mostly limited to higher up the flanks & crest.

Still lots of snow on parts of Sierra Crest, less on others.

High Altitude Trips are STILL SNOW TRIPS

Date-Adjustable High Sierra Snowpack Status

Amazing Sat Views

Continuing high runoff flows maintain the
FORDING HAZARD.

HOT TEMPS PERSIST,
and must be monitored.

FIRE & SMOKE
hazards are present & increasing.

MOSQUITOES are a THREAT.

Water & Snow Hazards are gradually narrowing as this unique season progresses, while Heat, Fire, and Skeeter threats are rapidly rising.


1August

 

 

2 August

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

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3 August

 

 

Top

 

 

 

 

 


Top

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

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Top of Page

January       February     March       April       May       June

July     August     September       October       November       December

 

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 

Standard JULY NOTES:
I’ve seen years when the snowpack sticks through the Summer, and years where the snowpack clears by mid-June. The past four decades the average annual snowpack has radically declined and the date the snow clears has gotten earlier and earlier.

Independent of the long term trends our trip planning and gear selection are guided by careful observations of the character of each season’s weather. This year is no different.

2015 REPORTS:
Freak Tropical Weather blowing North bringing unsettled weather into the Sierra since late May, and certainly persisting through now, mid-July. The El Nino conditions in the East-Central Pacific are already epic by July 22, which is very early in the timing of a typical El Nino "season."

This indicates a high probability of our already tropically-unsettled weather being supercharged by a heavy El Nino building into Fall. We will see. This tropical weather has served to suppress what would have been a disastrous fire season, and has served to put the drought on "suspended animation," somewhat retarding its progress.

Last two times I saw El Ninos like this (over last 40+ years) California suffered epic Fall flooding. Epic.

2014 Calendar          2015 Calendar          2016 Calendar          2017 Calendar          2018 Calendar

 

The
Bookends

of
High Sierra Experience

JULY
2015

RECORD MINIMAL SNOW PACK

 

JULY
2017

MASSIVE, RECORD MAX SNOW PACK

 

 

Permits
Yosemite National Park and Desolation Wilderness accept reservations six months in advance for Summer backpacking dates.

June 2016 reservations are available in January, July in February, and so on.

Yosemite Permits

Desolation Wilderness

Hoover Wilderness

 

DANGERS
Monitor weather for afternoon Thunderstorms

Beware of dangerous fording conditions

Mosquito conditions are typically going Hog Wild during this time of year.
Not during 2015!
Mosquito Populations are still being depressed by the drought conditions, despite the Spring and Summer tropical rains.


2014 Calendar          2015 Calendar  

2016 Calendar         2017 Calendar

2018 Calendar

Mountain Safety

Thunderstorms?

As snow travel and fording dangers receede on the High Sierra terrain, the next danger grows in the skies.

July brings the peak of the Summer Thunderstorm Season in the High Sierra.
These are typically local weather, caused by heat waves in the San Joaquin Valley swept up the West Sierra Flank.

Hot wet air on a fast ride up the West Sierra flank to high elevations squeezes out what can be substantial daily rain and lightening activity lasting between 2 pm and sunset.

Don’t cross open ground under one of these storms. They are deadly. Lightening and Fording are the leading causes of High Sierra backpacker deaths.

More Lightening Information                  Lightening Prediction Tools

Typical Scene: Video

Story
Caught Out with Bubba & Dave

 

2015 HISTORY
This year's constant series of thunderstorms are tropically born, not local. These thunderstorms are the product of distant moisture-rich tropical air being driven North by air currents generated by the intense tropical thunderstorm activity that generated them in the first place. These moisture rich airs are then sucked across the Sierra by an aberrant series of stubborn unstable low pressure zones over California and the West Coast of the U.S.

Tahoe to Whitney

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2019
High Sierra
Backpacking Calendar

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