In partnership with: Utah Division of State Parks and Recreation, The Friends of the Utah Avalanche Center, Utah Department of Emergency Services and Homeland Security and
April 21, 2006 4pm
Good afternoon, this is Drew Hardesty with the
We are no longer putting out early morning
advisories for the rest of the year.
We’ll put out intermittent afternoon updates on the web and
Mountain temperatures are skyrocketing into the red zone. Mittens and down jackets from Wednesday are now a thing of the past, long since traded in for Hawaiian shirts and flip-flops. Last night’s overnight low is 20 degrees warmer than Wednesday’s and stands to be up to ten degrees cooler than tonight’s. With 11,000’ highs reaching 45 degrees, today may have been the last ticket for hitting dry cold settled powder on the north and supportable corn on the south.
Recent Avalanche Activity & Snowpack Discussion:
Folks have still been able
to find a few rogue wind drifts and storm snow soft slabs from Monday’s
storm. A few slope cuts triggered a
couple settled pockets 6-8” deep and 40’ wide, running over 1000’. These were on very steep northerly facing
slopes in the higher terrain in the
With high thin clouds and expected overnight lows tonight in the low 40’s, refreezes of the snow surface will be superficial. Don’t use the last couple of days as you gauge, as supportable crusts will become unsupportable earlier in the morning than on Thursday and Friday. The mid and high northerly slopes will start to produce wet activity as they’ve been dampened by today’s heat and tonight’s warm overnight temperatures. Expected high rain/snow lines for Sunday/Monday’s weakening storm will likely spearhead continued wet activity, particularly on the shady slopes. Timing will be everything this weekend. So will knowing when you’ve overstayed your welcome on the steep soggy slopes. Once things have gone off, take a hint and move to cooler aspects or the back nine for the rest of the day. As always, be especially careful under suspect glide crack terrain; commonly found in upper Mill B South, Broad’s Fork, and Stairs Gulch.
Get off of, and out from underneath, steep slopes when you start to sink into wet snow, especially in the heat of the afternoon. Tonight’s poor refreeze will initiate the wet activity earlier in the morning, starting on east, then south, then west facing slopes. Northerly facing slopes will start to become active with wet activity as the snow surface becomes increasingly damp.
The current ridge high
pressure will start to break down and move off to the east ahead of a weakening
Low pressure system currently centered over
Click here to check out our new online avalanche encyclopedia.
Click HERE for a text only version of the avalanche advisory.
UDOT also has a highway avalanche control work hotline for Big Cottonwood, Little Cottonwood, and
Please report any backcountry snow and avalanche conditions. Call (801) 524-5304 or 1-800-662-4140, email [email protected] or fax 801-524-6301. 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 will update this advisory again as conditions warrant.