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Thursday, February 10, 2005
Good morning, this is
Brett Kobernik will be giving a free avalanche awareness talk at the SLC Milosport this Friday, February 11th, at 7pm.† There will even be some free swag awarded at the end for answering random avalanche questions.
Everybody is raving about the great powder snow.† We havenít seen much of it this winter so I hope you enjoyed it while you could because this morning, ridge top temperatures are already in the mid 20ís, which is about 20 degrees warmer this morning than yesterday morning.† Also increasing clouds this afternoon will likely finish off the nice snow.†
Usually, most avalanches occur during or right after a storm and the hazard decreases as time goes on.† But just the opposite seems to be happening.† The new snow that fell on Sunday night and Monday was very light density and not only didnít weigh enough to overload the buried weak layers of faceted snow and surface hoar, but the feather-like snow didnít form a slab.† But time and warmer temperatures are stiffening up the new snow and weíre seeing more and more soft-slab avalanches.† Yesterday, skiers triggered three different soft slab avalanches in American Fork on
Also, for the past couple days, people were able to sluff the snow easily on steep slopes, which generally donít catch people, but some of these sluffs have been quite substantial.† For instance, yesterday, in
Finally, warmer temperatures and greenhousing from high clouds will continue to produce wet sluffs when the new snow gets soggy.
Bottom Line (
The avalanche danger is still generally LOW today with a †MODERATE danger on any steep slope where the new snow is more slab-like, especially wind drifted slopes.† Also, with day time heating, the danger of wet loose avalanches will rise to MODERATE on and below steep slopes that become wet from sun or warmer temperatures.† Finally, avalanche danger may rise dramatically by the weekend with the addition of dense new snow and wind.
The party is nearly over.† A wet, warm low pressure system is moving up from Baja and today we should have warmer temperatures, increasing clouds and increasing ridge top winds from the south.† By Friday, we should see light snow showers and heavier snow showers on Saturday.† Today, on the ridge tops, temperatures will be in the mid to upper 20ís with 10-20 mph winds from the south with thicker clouds moving in by afternoon.† Down at 8,000í day time highs will be in the lower 40ís.†
Yesterday, Wasatch Powderbird
guides flew in American Fork,
We really appreciate any information you are willing to give us.† You donít have to be an avalanche expert to give us some observations so please call and leave a message on our answering machine at 524-5304 or 1-800-662-4140, or e-mail us at [email protected].
Our partner The
Friends of the
The Friends of the
Bruce Tremper will give a talk called the Science of Avalanches at REI on Tuesday, February 15th at 7:00 pm.
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.
Brett Kobernik will update this advisory by 7:30 on Friday morning.
Thanks for calling
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