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Forecast for the Salt Lake Area Mountains

Drew Hardesty
Issued by Drew Hardesty on
Wednesday morning, March 26, 2025
The mountains will continue to fall apart today.
The avalanche danger will quickly rise to CONSIDERABLE on easterly to southerly to westerly facing slopes for destructive wet loose and wet slab avalanches. The danger for wet avalanches will also elevate to MODERATE on some northerly facing slopes at the mid and some upper elevations. CORNICES are a significant hazard. They may release naturally and trigger large avalanches below.
Travel Advice: It's a day to avoid steep, avalanche prone terrain, particularly by mid/late morning.
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Weather and Snow
Skies are clear.
With a storm developing off to the west, winds have picked up overnight from the south and are blowing 10-15 with gusts to 20.
Mountain temperatures are wicked hot with overnight "lows" in the upper 30s to low 40s. Highs reached into the upper 40s to low 50s yesterday.

Today look for sunny skies and increasing high cirrus by late afternoon. Winds will remain generally light (less than 15mph) from the southwest. Mountain temps will be a touch warmer than yesterday. Your window for safe travel on supportable crusts will be earlier and more narrow than it has over the last couple of days.
Thursday will be just a touch cooler but with more cloud cover and moderate winds from the southwest. Blessed relief, if not salvation, arrives Saturday with much cooler temps, if not a momentary return to winter. In truth, the models hint at a somewhat active weather pattern for the week.
Recent Avalanches
The wet snow shed cycle has begun. Yesterday went off with widespread natural wet avalanching on many steep solar aspects and even some low and mid-elevation northerly facing couloirs. These were primarily wet loose avalanches leaving debris piles easily large enough to bury a person. Cornices, too, were tender and we heard of a party that was involved with a cornice fall on Superior. It sounds like there was a subsequent slide and some lost gear but were otherwise ok. The party did call Alta Central (801-742-2033) to report the slide but we haven't heard back from them.
Two interesting avalanches yesterday that stepped down into old weak faceted snow near the ground. One was triggered by "light explosives" in upper LCC that was 4' deep and 50' wide in very steep, very rocky, unsupported terrain. The other was triggered by a cornice fall along the Cascade ridgeline the Provo area mountains that ripped out 3.5' deep and 200' wide into old depth hoar on the ground. Both paths have avalanched previously this year (repeater avalanches).
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Avalanche Problem #1
Wet Snow
Type
Location
Likelihood
Size
Description
Natural and human triggered wet loose and some wet slab avalanches can be expected today and your window for safe travel on supportable crusts will be earlier and more narrow than the last couple of days.
A couple things of note:
  1. Wet loose avalanches on nearly all aspects and elevations. Mountain temperatures will be warmer than yesterday, with daytime highs at 10,000' likely reaching into the mid-40s. Some upper elevation (above 9500') north facing slopes may be susceptible to wet loose avalanches.
  2. Wet slab avalanches. Some areas have not had a proper deep freeze for a couple of nights and free water pooling at various structural interfaces tends to promote wet slab releases. These wet slabs may be more likely on easterly or westerly facing aspects at the low and especially mid-elevations and be 1-4' deep and perhaps 1-200'+ wide. Wet slabs are generally much more dangerous and destructive than wet loose.
  3. Cornices are becoming weak and tender and are big enough to trigger large avalanches below, particularly on slopes that have avalanched previously this season. These are generally mid and upper elevation northwest to east facing slopes.
  4. Glide avalanches can be expected in the usual terrain of Stairs, Broads, and Mill B South of BCC and upper Porter Fork of MCC. I would absolutely avoid this terrain for the next few days (even after the cooler weather arrives).
  5. Roofs are shedding their winter loads. Please keep an eye on people, kids, animals underneath the roof lines.
General Announcements
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.