Forecast for the Ogden Area Mountains

Drew Hardesty
Issued by Drew Hardesty for
Tuesday, December 11, 2018
Most terrain has an overall LOW avalanche danger. Low danger, however, does not mean No danger. Isolated pockets of stubborn hard slab may still exist in steep drifted terrain.
Low
Moderate
Considerable
High
Extreme
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Special Announcements
Check out the new free online avalanche course series developed by the Utah Avalanche Center. This is a great way to refresh your skills or prepare you for a Backcountry 101 or Level 1 class.
Weather and Snow
Pre-"frontal" winds were the main event yesterday, with a fair bit of drifting in the mid to high elevations. See Kory Davis's video below. The weak front had little to show in the way of precipitation, but temps did drop into the upper teens and low 20s and the winds veered northwesterly. They're now blowing 10-15mph with gusts to 25. Snow stakes sit at 25-35". With a week or so since our last snowfall, the snow conditions are a bit rough around the edges. Sun crusts and wind effect are found on southerly and in the exposed terrain; however soft settled powder and "loud powder" (ie: surface hoar) can still be found in the shady sheltered terrain.

Tomorrow's quick hitter at the very least will sweep the smog out of the valleys and probably produce 4-8" of true powder for the mountains. It's a sharp looking cold front with mountain temps dropping to the upper single digits and a wind shift to the northwest. Post-frontal winds, however, look to remain moderate to strong until evening.
Recent Avalanches
Ski area control teams along the Ogden skyline were able to trigger a few hard wind slabs in steep wind drifted terrain yesterday. These should be increasingly stubborn but drifts should continue to be avoided today.
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Avalanche Problem #1
Wind Drifted Snow
Type
Location
Likelihood
Size
Description
Stiff and stubborn drifts may still be found in isolated terrain in the more exposed areas. Look for smooth rounded and hollow sounding drifts. These hard slabs have nasty habit of breaking above you or on the second or third skier. These should settle out in the next 24 hours or so. Yesterday Kory Davis went hunting for old weak basal snow and found a mostly stable snowpack. You can read more of his report here.
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.