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Forecast for the Ogden Area Mountains

Greg Gagne
Issued by Greg Gagne on
Friday morning, December 13, 2024
The avalanche danger is LOW, but could rise to MODERATE on northerly-facing slopes at the upper elevations if you notice wind-drifting or we receive more than the 2-3" of snow that is forecast.

Dangerous avalanche conditions are likely this weekend with heavy snowfall possible later Saturday and into Sunday.
Low
Moderate
Considerable
High
Extreme
Learn how to read the forecast here
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Weather and Snow
As of 6 am, temperatures are in the teens and winds from are the southwest, with gusts in the 20's mph along exposed upper elevation ridgelines . A trace to 2" of snow has fallen in the southern end of the range.
For today, temperatures will rise into the upper 20's and low 30's F and winds will be from the southwest, gusting in the 20's mph along upper elevation ridgelines and summits. 1-3" of snow is expected by sunset.

For this weekend, a short break overnight and into Saturday, with snow beginning late Saturday afternoon and lasting into Sunday. This storm will come in right-side up, beginning with warm, denser/heavier snow and ending with cold, lower-density snow. This could be a decent - and much-needed! - snow producer, with well over a foot of snow and an inch of water. Ben Lomond may do particularly well with this storm. A weak system is expected around Tuesday, with a few inches of snow possible.
Recent Avalanches
No avalanches were reported from the backcountry.

Derek DeBruin has provided an amazing report with satellite photos showing the current snowpack coverage. The photo below is just one of several that Derek has produced, and I encourage you to read Derek's full report - knowing where the snow currently is will be crucial to your planning in the coming days and weeks.
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Avalanche Problem #1
Persistent Weak Layer
Type
Location
Likelihood
Size
Description
It won't take much of a load for the fragile snowpack on northerly aspects to become reactive. On many slopes, the 1-2' deep snowpack is entirely faceted, and today's few inches of snow is probably not enough to overload this weakness, but if we get more snow and/or you notice wind-drifting, it may be enough to increase the avalanche danger.
Although today's snow and wind probably isn't enough to tip this precarious balance, if the weather forecast verifies, the Saturday/Sunday storm certainly will be.
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.