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

 

May
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
MAY
2018
High Sierra
News
MAY
2018
Backpacker
Alerts
Spring
of
2018
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
INDEX

TRAIL GUIDE

High Sierra
INDEX
TRAIL MAPS
High Sierra
INDEX
TRAIL
MILES
Download
FONT


2019
High Sierra
Backpacking Calendar

2019 INDEX

January         February         March         April         May         June

July         August         September         October         November         December

 

May
2019

Week 1

Week 2

Week 3

Week 4

Week 5

TRAILHEAD

Last Year

2017

 

Thunderstorms
climbing the
East Sierra
over
Forsyth Peak

Sitting above the Pacific Crest & Tahoe to Yosemite Trails at the Top of Jack Main Canyon in the North Yosemite Backcountry

East Carson River just below PCT under April Snow.
A glimpse at Forsyth Peak in the very Northwest corner of Yosemite National Park under the soft but fierce pastel clouds of a thunderstorm dying as sunset approaches.

Trail Guide           Map           Miles and Elevations

May 2019

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

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

 

 

 

 

Last Spring Snow Trips?
Once the Spring Thaw gets going the rivers and creeks will rage, making fording very dangerous.

REPORT

 

 

Spring Gear

Time to begin stashing the full Winter Gear. We can start lightening up the gear depending on weather.

 

 

PCT-TYT-JMT
HIKERS

Time to Carefully Monitor
Travel & Fording
Conditions

 

 

 

SPRING THAW

FORDING
&
TRAVEL HAZARD WARNINGS
IN EFFECT

 

 

 

 

 

All Snow Information

29 APRIL

 

 

Lightening Hazard
Predictions & Forecasts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snow Depths & Temp

2018
Snowpack

Percent of Average for
April 29
+/- change since
April 25

N Sierra: 30%
(+8%)

Cen. Sierra: 44%
(-2%)

S Sierra: 31%
(+3%)

Ca State: 37%
(=%)

Last
April 25
April 18
April 16
April 12
March 27
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 MONTH

NEXT WEEK

30 APRIL

 

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
ROAD NEWS
June Lake Loop Closed

 

 

 

 

LAST MONTH

NEXT WEEK

1

 

May Day
May Day Note

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Snowpack

Percent of Average for
May 1
+/- change since
April 29

 

Ca State: 27%
(-10%)

 

Last
April 29
April 25
April 18
April 16
April 12
March 27
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

 

May 7
Snow Report

 

2

 

 

 

THE SNOWPACK

GRAPHICS

Date-Adjustable High Sierra Snowpack Status

 

GRAPHICS

NOAA-NOHRSC
The High Sierra
12-7-18

 

REPORTING
STATIONS

NEW
Temp & Snow Tables
by Watershed and Highway Corridor

 

Also See
All High Sierra Snowpack Data

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

Informative
"Normal" Vs. Now

Forcasts & Reality
vs.
Averages

 

Winds? Weather?

NorCal Graphics

SoCal & SW US

 

Precipitation

Quantitative Precipitation Forecasts:
RAIN FORECASTS

 

 

Let's look at the
Big Picture

The Pacific Ocean

Set this for 14 days
&
Display Loop Below

 

US Weather Map

 

All Maps

 

All
High Sierra Weather
And the factors creating it

 

 

2018
Highway 108

Open
May 3, 12:00 Noon

 

 

 

 

4

 


SMOKE OBSERVATION, INFORMATION, & RESOURCES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018
Highway 4
Open
May 4, 12:00 Noon

 

 

 

 

 

 

 

LAST MONTH

NEXT WEEK

 

 

 

 

LAST MONTH

NEXT WEEK

 

TOP

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

5

 

6

 

7

 

8

 

 

 

LAST WEEK

NEXT WEEK

9

 

10

 

 

 

 

 

 

 

11

 

 

 

 

LAST WEEK

NEXT WEEK

 

 

TOP

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

12

LAST WEEK

NEXT WEEK

 

TOP

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

15

 

 

 

 

 

 

 

 

 

HIGH SIERRA
Mosquito News


16

 

 

 

The Weather Page
NWS
High Sierra Hazard
WARNINGS
&
National Hazard Map

 

 

 

 

 

 

 

 

 

 

 

17

 

18

CLOSED

PCT CLOSED:
Sonora to Ebbetts Passes

W Flank Carson Iceberg Wilderness
CLOSED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

19

 

 

LAST WEEK

NEXT WEEK

 

TOP

20

 


21

 

 

 

 

 

 

 

 

22

 

 

 

 

 

 

 

 

 

 

 

23

 

 

 

 

 

 

 

 

 

 

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT WEEK

 

TOP

 


25

 

 

 

 

 

 

 

Review
the
August 2017
Trail News

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

26

 

LAST WEEK

NEXT MONTH

 

TOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

National Hazard Map

 

 

2016-17
High Sierra
Season Review

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

 

 

 

High Sierra
Weather Page

 

 

 

 

 

 

 

 

30

 

 

 

 

 

 

 

 

 

Mosquitoes

 

 

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


1 JUNE

 

 

 

 

 

 

 

 

 

LAST WEEK

NEXT MONTH

 

TOP

 

 

 

 

 

 

 

LAST WEEK

NEXT MONTH

 

TOP

 

Top of Page

 

End of April

June

 

2019

January       February     March       April       May       June

July     August     September       October       November       December

 

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

2018 Calendar

 

NOTES:
TRACKING SIERRA CONDITIONS CAREFULLY
The High Sierra resupply spots are all opening up this month or early the next, a good sign that we should have our trip plans and logistics down and done by now.
We have planned-out every overnight campsite we will sleep at and every individual calorie we will consume by now, meaning that we are about ready to finalize our buckets, seal them up, and determine the exact timing of their shipment to best match our anticipated arrival date.

 

2017:
SIERRA HIGHWAYS ALL CLOSED FOURTH WEEK OF MAY

 

Review
May 2017 against May 2016

 

2016:
SIERRA HIGHWAYS OPENING SECOND WEEK OF MAY

 

2015:
A Deluge of wet and sloppy weather, rain, hail, snow and lightening begins.
The beginning of a sloppy Summer of 2015.

2015
Earliest Opening of Roads and Trails in History?

 

MAY 1 STATUS 2015
2% of Average Snowpack

MAY 1 STATUS 2016
55% of Average Snowpack

MAY 1 STATUS 2017
194% of Average Snowpack

MAY 1 STATUS 2018
27% of Average Snowpack

CA REPORT, MAY 2018

 

TWISTED SEASONS
Hottest then Driest Years Ever over Two Years


Generally,
May gives us a good indication of the unfolding trajectory of Spring.

 

Specifically,
2016
It is clear that the most powerful and enduring El Nino in history had the effect of leaving us with about half a "normal" snowpack in May.

The big "takeaway" from all these past forty years is the significant changes in fundamental weather patterns.

Weather patterns have broken down in lockstep with the unlimited growth of population, offshore production, and consumption.

Our pattern must change if we hope to pull the weather patterns back into fruitful configurations.

 

 

2016:

"Spring" bloomed in Feb.!

"Summer" heat is rising in Late May!

OPENING DATE ASSESMENT
opening of the High Trails across Mountain Passes.

North Sierra opens by May 29.

South Sierra still in Spring Snow Conditions
May 29

High Sierra Backpacker Weather

 

2017:

Memorial Day
Ten feet of snow on the Crest

Huge bloom everywhere else from the overwhelming supply of water after so long with so little.

2014 Calendar          2015 Calendar

2016 Calendar          2017 Calendar

May 2015 Tracking the Drought page
May 2015 Tracking the Sierra Conditions page.

2018 Calendar

2016 OBSERVATIONS AND TRACKING

WHEN WILL THE SIERRA OPEN in 2016?

TRACKING 2016 CONDITIONS


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2014 Calendar          2015 Calendar          2016 Calendar          2017 Calendar

2018 Calendar

 

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

 

BACKGROUND
The trajectory of the cold, rain, and snows of Spring provide both excellent backpacking experiences and establish the terms, a baseline for this year’s transition into Spring Conditions.

Regular storm activity laid atop a deep pack of Winter snows wrapped in cold temps indicate a long Winter into Spring transition.

Light snows and irregular storm activity sprinkled on a thin snow pack under high temperatures indicates an early and rapid transitions into Spring and Summer conditions.

Tahoe to Whitney

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Top of Page

2019

January         February         March         April         May         June

July         August         September         October         November         December

 

 

2014 Clendar          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