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March 22 2017 Backpacker Alert: Spring Status and Disposition factors sticky icon

THIS YEAR
2017

March 22

Hey Hikers.

We face the Spring Thaw. Below I discuss where we are and what I see as the most important factors controlling how Spring will play out into Summer. I link to the resources necessary to track these factors.

The questions we address here are first, fording conditions and safety, then trails, specifically, "when will the trails open for PCT hikers and hikers geared for Summer travel?"

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BACKPACKER ALERT: February 20, 2017

 Hey Hikers,

Alex here, from Tahoe to Whitney.

Sorry about the delay contacting you. I have had a series of distracting personal events while Nature has cut loose. Nonetheless, I have been tracking the wild weather across the Backpacker News Pages on the Forum and the Backpacker's Calendar on the Trail Guide. I hope you've checked them out and found them useful and informative.

Recent Backpacker News
http://tahoetowhitney.org/content/backpacker-news-february-march-2017

Alex Wierbinski's picture

May 22 2016 Backpacker Alert

May 22, 2016

BACKPACKER ALERT

Current Conditions:
Unstable weather conditions bringing snow and cold rains down onto the two feet of snow already on the crest bring very dangerous conditions for early season backpackers in the Sierra Nevada Mountains. 

All High Sierra Rain & Snow Forecasts

All Current High Sierra Radar

Alex Wierbinski's picture

April 8 Backpacker Alert

BACKPACKER ALERT

April 8 2016


Weather Status

Current Situation

El Nino's concentration of super-hot waters have significantly moderated:
Sea Surface Temperatures

Alex Wierbinski's picture

FEB 1 2016 BACKPACKER ALERT: Winter to Spring Status under El Nino

Backpacker Alert

Status of Factors Directing El Nino
and
Winter Storm Pattern

 

Alex Wierbinski's picture

January and February 2016 Backpacking Sky Tracking: When Will the Sierra Open?

Start the Heart of Winter
 Below we are tracking specific observations, forecasts, and weather events affecting the trajectory of the Spring Snowpack along this year's specific, unique evolution to open, Summer-condition status for Summertime backpacking.

Alex Wierbinski's picture

Jan 1, 2016 Backpacker Alert: Tracking Opening of 2016 Backpacking

Hey Hikers,

Happy New Year.

With the advent of the new year many of our thoughts are turning towards planning Summertime backpacking trips.

Just when Summertime conditions emerge along the Sierra Crest is of great importance to large numbers of John Muir Trail and Pacific Crest Trail hikers.

Alex Wierbinski's picture

December 2015 Backpacker Alert: Central-West Pacific Conditions Change

FORCES at PLAY 

1> Spin and Cold of the Arctic Circle

 2>  Central and North-East Pacific High Pressure Zone

 3>  Location of Fierce El Nino Waters and Thunderstorms

 

Results So Far

1> Weak Arctic: Low pressure zones are meandering around the Bearing Straight and Gulf of Alaska. Arctic has not chilled down fiercly and spun-up. It's weak.

Alex Wierbinski's picture

OCT 31 2015 BACKPACKER ALERT: First Winter Storm Watch

BACKPACKER ALERT

First Winter Storm Warning for the Sierra Crest.
FALL 2015 

Issued: Sat Oct 31, 2015 4:40 AM GMT-0700

North Sierra

"WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY EVENING."

"SIGNIFICANT EARLY SEASON SNOW POSSIBLE LATE SUNDAY NIGHT THROUGH MONDAY EVENING FOR THE NORTHERN SIERRA NEVADA MOUNTAINS"

 South Sierra 

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