In partnership with: The Friends of the Utah
Tuesday, April 15, 2003
Good Afternoon.† This is Bruce Tremper with the
Our mighty storm was what a rock climber would call all chalk and no action.† It teased us along for three days of blustery, egotistical, huff-and-puff, it delivered a lame performance, then it skipped town before anyone noticed.† Most mountain areas ending up with just a couple inches with a small island of 5 inches in upper Little Cottonwood Canyon.† The snow is dense with about a half inch of water weight.†† Temperatures didnít cool down much before the snow arrived, so the old snow is mushy underneath with a breakable crust on top at elevations below about 9,500í.† As far as skiing and boarding conditions, itís mushy, grabby, tricky snow below 9,500í where lock-down heels are nice and itís a couple inches of thick snow on a supportable crust above 9,500í. ††But hey, itís April.† What did you expect?
Thereís not much going on in the avalanche department.† The cooler temperatures will freeze up the old wet snow below 9,500í but it will take a day or so because itís insulated with a little new snow.† Tomorrow, there may be a few steep slopes where you can plow up some wet snow and get a small wet goober going at lower elevations.† The other potential problem I found today was some very localized, soft wind slabs along the most upper elevation ridges.† The winds are blowing 30 gusting to 40 from the west along the highest peaks, which is blowing the new snow into shallow, soft drifts, but thereís not much new snow and itís quite dense, so the wind slabs will be very localized and shallow.
Bottom Line (SLC,
On Wednesday, you will find mostly a LOW danger of human triggered avalanches with some pockets of MODERATE, or localized, danger on any steep slope with a recent wind drift and also a lingering MODERATE danger of wet sluffs in lower elevation snow on very steep slopes.
Act I of our storm is about over and after some lingering clouds and light showers overnight, Wednesday a weak ridge should temporarily build and we should have partly cloudy skies with ridge top temperatures rising up into the mid 20ís and 8,000í temperatures rising up to nearly 40 degrees.† Then on Thursday afternoon through about Saturday, Act II of the storm looks to be stronger and colder than the last one.
To report backcountry snow and avalanche conditions, especially if you observe or trigger an avalanche, call (801) 524-5304 or 1-800-662-4140, or email to [email protected] or fax to 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.
Ethan Greene will update this advisory some time Wednesday afternoon.
Thanks for calling!
For an explanation of avalanche danger ratings: