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Forecast for the Salt Lake Area Mountains

Drew Hardesty
Issued by Drew Hardesty on
Thursday morning, April 14, 2022
A MODERATE avalanche danger exists at the mid and upper elevations. Human triggered avalanches 1-2' deep are possible, particularly in areas with recent drifts of wind blown snow.
Follow safe travel protocol:
  • Make a plan.
  • One at a time.
  • Carry and know how to use your rescue equipment.

Cloud cover will be the WILD CARD. Any sun or greenhousing today will probably make WET AVALANCHES the primary concern.
Low
Moderate
Considerable
High
Extreme
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Special Announcements
Our last regular forecast is Sunday, April 17th. Intermittent forecasts will be issued through April based upon weather conditions which affect avalanche danger.
Weather and Snow
"More January than January," is how Andy Van Houten described it yesterday: cold, snowy, blustery.
No snowfall was recorded overnight, but storm totals are up to
Upper Cottonwoods: 20-24" (1.38"-1.70" SWE) *snow-water-equivalent
Park City ridgeline: 12-24" (1-2.0" SWE): higher amounts along the northern end of the PC ridge
Ogden mountains: 20-26" (1.64" SWE)
Provo mountains: 6-10"(0.6" SWE)

Skies are overcast with weak warm air advection kicking in another inch or two of snow this morning. Temperatures have followed suit, as many stations are at 24 hour highs in the low to mid-teens. Winds are west to southwest, blowing 15-20mph with gusts to 25.
For today, we'll see a few snow showers this morning with thinning cloud cover over the course of the day. Mountain temps will rise to the mid 20s up high, the mid 30s down low.
Skiing and riding conditions are excellent and "right-side-up" with lower density snow capping the 1-2' of storm snow. Coverage in the upper elevations sits at 80-110" on the ground (60-70" along the south end of the PC ridge) but take caution that the late March warm-up burned many southerly aspects to dirt. Traumatic injury is possible with the thinly veiled stumps and rocks.

Another pulse of snow is expected this evening with 4-8" possible through tomorrow. It's not over.
--Do not go gentle into that good night,
Old age should burn and rave at close of day;
Rage, rage against the dying of the light
.--
A cold and windy storm is expected this weekend with unsettled weather on tap for the next week or so.
Recent Avalanches
Ski area avalanche teams reported triggering soft slabs of both wind blown snow and within the storm snow, with some stepping to the old dust layer up to 2' down. These were reported to have been most reactive to explosive use, rather than with ski cutting. Backcountry observers reported only sluffing in the upper few inches of low density snow.
We did hear of one and perhaps two partial burials near Squaretop (along the Park City ridgeline/Canyons periphery) from Tuesday. This (these) avalanche(s) was on a steep northeast facing slope at 9600'.
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Avalanche Problem #1
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
Active wind transport at the mid and upper elevations has been noted over the past few days and drifts may still be triggered in steep wind loaded terrain. North to east to south facing aspects will hold most of the drifts, but terrain channeling will allow for wind drifts to be found around terrain features of all aspects.
Avalanche Problem #2
New Snow
Type
Location
Likelihood
Size
Description
Avalanches have been triggered both within the storm snow and along the old dust layer interface 2' down. Natural settlement and warming temperatures will start to heal these instabilities, but "the glue has yet to dry". Soft slabs may still be triggered in steep terrain at the mid and upper elevations.

THE WILD CARD: If the strong mid-April sun comes out for periods of time and/or is accompanied by intense greenhousing, WET AVALANCHES may become the primary concern. Direct sun will affect the solar aspects while greenhousing will rapidly affect the cold snow on all aspects, even the mid-elevation northerly aspects. YOU'LL NEED TO BE YOUR OWN FORECASTER to see how the sky cover affects the snow surfaces.
General Announcements
Who's up for some free avalanche training? Get a refresher, become better prepared for an upcoming avalanche class, or just boost your skills. Go to https://learn.kbyg.org/ and scroll down to Step 2 for a series of interactive online avalanche courses produced by the UAC.
This information does not apply to developed ski areas or highways where avalanche control is normally done. This forecast is from the U.S.D.A. Forest Service, which is solely responsible for its content. This forecast describes general avalanche conditions and local variations always occur.