In partnership with: The Friends of the Utah Avalanche Forecast Center, Utah Department of
Public Safety Division of Comprehensive Emergency Management, Salt Lake County,
and Utah State Parks
NEW!
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Good afternoon, this is Tom
Kimbrough with the
Current Conditions:
A change in the weather is on
our doorstep. Southerly winds have been
blowing at the upper elevations all day.
Speeds are 10 to 20 mph at 10,000 feet and 20 to 40 across the highest
peaks. Temperatures have warmed into the
thirties at 8,000 feet and the mid twenties at 10,000. The backcountry snow conditions haven’t been
quite up to our usual standards recently but a change in the weather will
hopefully freshen things up over the next couple of
days.
Avalanche Conditions:
There
was an avalanche accident high on the southeast side of the
While
not directly related to the rise in avalanche danger that we expect with
tonight’s approaching storm, this avalanche does remind us that there is still
a lingering chance of triggering hard slab avalanches and that slides in new
snow that we may get this week may step down into deeper weak layers.
The
avalanche danger is already rising as winds increase this afternoon. The danger will continue to rise tonight and
Monday as snow accumulations add up and winds build drifts on mountain
slopes. A couple of months of cold
temperatures and small, infrequent storms has produced
a weak snowpack that won’t support much extra weight. There is lots of
faceted snow at the surface on shady slopes and widespread areas of loose,
unsupportable snow at the mid and lower elevations. Sun crusts on the southerly aspects and old
wind slabs along the upper elevation ridgelines will provide sliding surfaces
for new snow avalanches. In other words,
if this next couple of storms put down one or two feet of new snow, plenty of
avalanches are likely.
Bottom Line:
While the danger of human
triggered avalanches is isolated or LOW today
on most slopes, there is a MODERATE and
rising danger on steep wind drifted slopes at upper elevations. The danger will
continue to increase and become more widespread as snowfall begins tonight and
continues on Monday.
(
Mostly
the same general conditions as in the SLC mountains.
(
Mostly
the same general conditions as in the SLC mountains.
Mountain Weather:
Much of the approaching
storm’s energy will track through southern
General Information:
During
the Olympics, we will issue both morning and afternoon advisories. We’ll use the 364 -1591 line for more
detailed or additional avalanche information.
To
report backcountry snow and avalanche conditions, especially if you observe or
trigger an avalanche, you can leave a message at (801) 524-5304 or
1-800-662-4140. Or you can e-mail an
observation to uacobs@avalanche .org, or you can fax
an observation to 801-524-6301.
Wasatch
Powderbird Guides will not be flying during the Olympics.
We
have a new icon-based,
short advisory posted each day at www.avalanche.org. We would appreciate any feedback on this new
product.
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.
Drew
Hardesty will update this advisory by
Thanks for calling!
_____________________________________________________________________________
For more detailed weather
information go to our Mountain Weather Advisory
National
Weather Service - Salt Lake City - Snow.
For an explanation of
avalanche danger ratings:
http://www.avalanche.org/usdanger.htm