Snow / Avalanche Information
This web site will
provide one-stop access to
daily
snow, avalanche, weather and trail information for the Island Park--West
Yellowstone Area from 12/1 to 4/15. This site is now mostly automated
and gets it's information from the NRCS Weather Center Snowtel sites.
This site is designed
to be a help to those planning a ski, sled, board or snowmobile trip to
this mountainous terrain. Visitors should carefully read and study all
of the "NOTES" and "CAUTIONS" on this page, and on the "Avalanche
101"
page.
Snowfall and snow-depth data are
taken from the site locations (circled numbers 1--6) on this map, and
conditions are show in the table below.
Caution:
Backcountry users should be aware that pockets of snow instability
likely exist that are at least one level higher hazard than the
avalanche forecast rating in any given area. These pockets are the main
source of slides when the avalanche hazard is only rated as
"MODERATE",
which statistics show is the hazard forecast rating when many human
triggered avalanches occur
(see examples).
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Name
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Elev.
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New
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Total
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Temp.
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NOTE: WE DON'T HAVE INFO
FOR THE HENRY'S LAKE AND LIONHEAD SENSORS
ALSO ALL INFORMATION ON SNOWDEPTH AND TEMPERATURE IS PULLED
DIRECTLY FROM NRCS SNOWTEL WEBSITE. INFORMATION IS UPDATED ON THEIR SITE DAILY AT MIDNIGHT.
AVALANCHE INFORMATION CAN BE FOUND AT THE FOLLOWING LINKS:
BRIDGER-TETON N.F. Avalanche
Center
GALLATIN N.F.
AVALANCHE CENTER
Publisher's NOTE:
Be
sure you have adequate avalanche awareness training, knowledge, and
equipment-- BEFORE you approach avalanche terrain.
The
B-T and Gallatin N.F. Avalanche Centers are the closest available source
of Forest Service avalanche hazard evaluation and forecasts, and are
general in their application. Due to the variability in weather and
avalanche conditions in the mountains, it is important that visitors to
the Island park and West Yellowstone Area study the two available hazard
forecasts (above), along with the snow and weather information herein
and cautiously make their own evaluations of avalanche hazard in this
area. This should include snow-pit studies in the area you plan to
visit. Click on the
National Avalanche Center
for more infor.
