Thanks for everyone that donated to organizations that make living in Utah a better place during yesterday's Love Utah Give Utah. We here at the Utah Avalanche Center gratefully appreciate the support we receive from this amazing community.
Temperatures this morning in the Provo mountains range from upper 20's to low 30's F. Winds are out of the east and are currently light, averaging less than 15 mph. However overnight the east winds gusted into the upper teens for several hours. Total snowfall from late yesterday afternoon is decent, with generally 3-5" reported from the mid elevations in the Provo mountains, with rain reported at lower elevations.
Week in Review [Detailed Version]
This past week has been highlighted by the see-sawing of storm and bluebird days, with avalanche activity ranging from storm and wind slabs during stormy periods, to predictable wet activity on sunny days.
A weak storm on Saturday delivered 4-6" by late in the day in the central Wasatch. Sunday started cool & clear, but the strong March sun brought the usual round of shallow wet loose activity by mid-day.
Monday was a classic March storm, with snow totals ranging from 6-13" during the day. A particular highlight was Alta recording 7" of snow from noon - 1 pm. Jim Steenburgh has a nice write up of this phenomenon on his classic Wasatch Weather Weenies page. During the day Monday there were widespread sensitive storm snow instabilities, including a natural cycle during the height of precipitation intensity.
Tuesday was a transition day with wet slab activity, as well as sensitive wind slabs in the upper alpine regions, reported.
By Wednesday, warm and clear conditions signaled the return to loose wet activity, especially on steep southerly aspects.
Thursday flipped back to unsettled weather as a modest storm entered the region, depositing 5-8" across the Salt Lake and Park City mountains by Friday morning.
There were zero reports from the backcountry on Thursday. Where I was traveling yesterday afternoon in the upper reaches of Big and Little Cottonwood canyons in the Salt Lake mountains I was finding the trace to 1" storm snow to bond well to the old snow surface. I ran into a party that was touring in Silver Fork and they reported that, even though they tried, they were unable to get any snow to move.