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Avalanche Information
Wednesday, April 13,
2005 6pm
Good evening, this is Evelyn Lees with the
Weather Outlook:
A strong dry cold front will move across northern
Avalanche Information:
The classic spring weather is producing classic spring avalanche
conditions. As the temperatures warm
each day, the danger of wet sluffs and wet slab avalanches
increase, and when the temperatures cool, the snow pack starts to
strengthen. However, there is often a
time lag both ways. Thursday morning, as
temperatures cool, the snow surface will start to refreeze. But it will be just a shallow refreeze, with
damp weak snow beneath it. A slab consisting
of a frozen crust sitting on a weak layer of wet snow – it’s a classic recipe
for an avalanche. So just because there
is hard snow under your feet, it doesn’t mean the snowpack is stable. Dig down, and find out how thick that
refrozen layer is and what it’s sitting on.
And if the snow becomes wet and sloppy where you are, it’s time to get
off of and out from under steep slopes. Early
starts and early finishes are the spring time mantra. Also be observant of the location of glide cracks,
and avoid traveling under them as much as possible, especially during a multiday
and night warming trend. Wednesday’s strong
winds may have found a bit of dry snow to drift at the highest elevations, so
as always, avoid any drifts of snow on steep slopes.
The avalanche season is not
over yet - in many parts of the range, the snowpack is still layered, with a
mix of crusts, cold dry snow and wet snow.
As this layered snow pack warms, avalanches will occur.
Notices:
The Wasatch Powderbirds will be flying until April 15th.
The advisory on our web page
contains a user survey. Please take a
few minutes to complete it so we can better our forecasts for you. The web site is utahavalanchecenter.com, click
on
As we’re still putting out
avalanche information, if you run across anything we should know about, please
call and leave a message at 524-5304 or 1-800-662-4140, or e-mail us at [email protected]. Fax is 524-6301.
The information in this
advisory is from the U.S. Forest Service, which is solely responsible for its
content. This advisory describes general avalanche conditions and local
variations always occur.
We’ll update this forecast on
Friday, and thanks for calling.