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Wednesday, February 16,
Good morning, this is Evelyn Lees with the
Our partner The
Friends of the
The Friends of the
A weak warm front is pushing through the region this morning, and temperatures in the southern half of the range have warmed 5 to 10 degrees overnight, and are in the teens and 20’s this morning. Winds overnight were from a southwest to westerly direction, in the 15 to 20 mph range with gusts into the 30’s. Deep, wonderful powder exists on all aspects, with just a slight sun crust on south through west.
The snow from the last storm came in right side up, and was relatively well behaved, producing sluffs and a few shallow soft slabs on steep slopes. However, the additional weight from the storm has made the weaker faceted layers lurking 2 to 3 feet beneath sensitive to the weight of a person or control work. Yesterday there were 3 human triggered slides in the
These are tricky avalanche conditions – intoxicating powder, no significant natural activity, but well hidden, variable weak layers just waiting for a trigger. So the key to enjoying all that fresh powder will be watching your slope angles, and staying off of slopes steeper than about 35 degrees. Slides can be triggered remotely from a distance, so also avoid travel adjacent to and below steeper slopes.
And finally, with warmer temperatures and the possibility of mostly sunny skies later today, wet sluffs could become a problem. The snow could heat up and sluff on steep sunny slopes and on the mid and low elevation shady slopes.
Bottom Line (
The avalanche danger is CONSIDERABLE on mid and upper elevation slopes steeper then 35 degrees, facing northwest through east, and on any steep slope with recent or old deposits of wind drifted snow. The danger is MODERATE on other steep slopes. On slopes less steep than about 35 degrees, the avalanche danger is LOW.
A warm front is working its way north across the state, bringing mostly cloudy skies and warmer temperatures to the mountains. A few snow flurries are possible this morning, and then skies should partially clear by this afternoon. Highs today will be in the upper 20’s at 8,000’ and the upper teens at 10,000’. The southwesterly winds will shift to the northwest and decrease to less than 10 mph. After a night of clear skies and light winds, Thursday will be mostly sunny and warmer. The next storm is forecast to start affecting the area by Friday night.
Wasatch Powderbird did not fly yesterday, and if they can fly
today will be in
A huge thanks to everyone who sent in observations yesterday!!! So please calling us 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.
I will update this advisory by
7:30 on Thursday morning.
Thanks for calling.
For an explanation of avalanche danger ratings: