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Good morning, this is Evelyn
Lees with the
miss the Banff Mountain Film Festival at the U of Uís Kingsbury Hall on March
12 and 13, at .† Tickets are available at the Kingsbury Hall
ticket office, Art-Tix, the
appreciated storm has moved east of
This morning, under clear skies, temperatures are near zero.† The winds are from the west, averaging 25 to 35 mph in the more exposed locations, and nearer to 15 along the less exposed ridge lines.
Visibility was poor most of yesterday, limiting backcountry observations.† However, within the resorts the fresh wind drifts were sensitive, and widespread new snow avalanches were reported from control work in wind loaded areas.† Today, while these new wind drifts will be more stubborn, continue to avoid steep slopes that were wind loaded during the storm.† Cornices could also be sensitive, breaking back further than expected.
of concern today will be the more deeply buried weak layers.† During the past 2 months, many weak faceted
layers developed with in the snowpack, often sandwiched between crusts.† Most likely this storm did not add enough
weight to cause widespread avalanching on these deeper weak layers.† This means many steep slopes are hanging in
balance, just waiting for a trigger.† I
would consider almost any steep slope suspect, especially where wind loaded or
in thinner snow pack areas.† The most
likely place to trigger one of these deeper slides would be on slopes similar
to where the steady numbers of avalanches were triggered over the past
weeks.† This is on a northwest through
northeast through southeast facing slope, above about 9,000í.† The likelihood increases with elevation and
wind loading.† Areas with weak underlying
snow are most wide spread in the
With abundant sunshine and dramatic warming today, sunny slopes will heat up rapidly, triggering wet sluffs and slides.† So as sunny slopes heat up, stay off of and out from underneath them.†
While the focus will be on powder today, take a deep breath and keep thinking avalanches if you get into steep terrain.† Go one at a time on steep slopes and watch out for the position of other backcountry parties.†
The danger of human triggered avalanches is CONSIDERABLE today on slopes steeper than about 35 degrees, especially where wind drifted and in thinner snow pack areas.† Human triggered avalanches are likely.† Avalanches in the new snow may break into deeper layers, creating large and very dangerous slides.† With day time heating, the danger of wet slides will rise to MODERATE on and below steep sunny slopes.
(Provo Area Mountains and Western Uinta Mountains)
These areas have had a thin snowpack most of the winter and sugary weak snow is more common than in the Cottonwood Canyons.† The danger of human triggered avalanches is more widespread in the Provo and Western Uinta Mountains, especially where wind drifted.†
Elevation dependent, significantly more snow as increase in elevation.
(Ogden Area Mountains)
Same as above.
An upper level ridge will
Wasatch Powderbird Guides will be flying one ship in American Fork and the
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 [email protected] .org, or you can fax an observation to 801-524-6301.
For more detailed mountain weather and avalanche information, your can call 801-364-1591, which weíll try to have updated by around each day.
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.†
Bruce Tremper will update this advisory by on Sunday morning.
Thanks for calling!
For more detailed weather information go to our Mountain Weather Advisory
For an explanation of avalanche danger ratings: