Ogden Avalanche Advisory

Forecaster: Evelyn Lees


Danger by aspect and elevation on slopes approaching 35° or steeper.
(click HERE for tomorrow's danger rating)

Danger Rose Tutorial

Out of the wind affected terrain, the avalanche danger is generally LOW. In the wind affected, upper elevation terrain, there is a MODERATE avalanche danger on steep slopes with wind drifts and along the corniced ridgelines. The avalanche danger may rise to MODERATE on steep sunny slopes and at low elevations with daytime heating, with human triggered damp sluffs possible.


It feels like winter has turned the corner, with more sunlight and mild weather creating superb days for turning, riding, and snowshoeing. Excellent powder remains on most shady, northerly facing slopes down to surprisingly low elevations, though the powder is increasingly hemmed in by breakable sun crusts on east, south and west facing slopes, and some wind damage in the high elevation, exposed terrain. Under clear skies, temperatures in the Ogden area mountains are in the upper teens to low 20’s this morning. After the moderate southwesterly ridge line winds in the Ogden mountains yesterday, speeds are now almost calm.


Avalanche activity yesterday included a slab released with a ski cut on a steep, north facing slope of Mill Canyon Peak in American Fork, which was a foot deep by 50’ wide, failing on facets and at least one new snow slide triggered either by a natural cornice drop or wind drifting. Activity was more widespread in the Logan and Western Uinta mountains – check out their local forecasts if you’re heading in those directions.


      Over the next 24 hours.

Yesterday, the northwesterly winds were dancing along the higher ridgelines, kicking up plumes of snow, and creating new wind drifts. These drifts will still be sensitive today, and most widespread on slopes facing the east ½ of the compass. Field work indicates there are still a few isolated places where a slightly deeper slide could be released on faceted snow, 1 to 2 feet deep, and I suspect these pockets may be more widespread in the mid elevations of the Ogden mountains.


      Over the next 24 hours.

Cornices are certainly no smaller today than they were a few days ago, and some actually grew yesterday and remain quite sensitive. There have been several close calls this past week, when they have broken back further than expected. If you want to drop a cornice, use a knotted cord or rope, and make certain no one is below you.


      Over the next 10 hours.

Today’s sunny skies, warmer temperatures and calmer winds will increase the chance for wet avalanche activity. Once the snow surface becomes damp or sloppy, avoid travel on and below steep sunny slopes. Low elevation, shady slopes could heat up, sluffs will be easily triggered, running on faceted snow or hard icy crusts. So be careful when making afternoon exits on steep sunny slopes or low elevation shady slopes.


High pressure centered over Utah will bring sunny skies, with temperatures warming to near 40 at 8,000’ and into the upper 20s at 10,000’. The light northwesterly winds will shift to the southwest this afternoon, and increase into the 10-15 mph range, with gusts in the 30s. A moist, west to southwesterly flow will replace the high pressure for the coming week, with clouds increasing on Sunday, and the first chance for snow around Monday.


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Wasatch Powderbird Guides flew yesterday in American Fork and Cascade. Today they plan to be in Cardiff, Days, Silver, Mineral, Grizzly, White Pine, Mill Creek and American Fork and Cascade. Operations planning page is here.

Beacon training parks are up and running! There is one at Snowbasin, one on the Park City side at the top of Canyon’s gondola toward the Tombstone lift, one in Little Cottonwood near the Snowbird parking structure on the bypass road, and in Big Cottonwood a training park is at the west end of Solitude's lower parking lot.

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UDOT highway avalanche control work info can be found by calling (801) 975-4838. Our statewide toll free line is 1-888-999-4019 (early morning, option 8).

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Your snow and avalanche observations can save someone’s life. Please let us know what you're seeing by leaving a message at (801) 524-5304 or 1-800-662-4140, or email us at uac@utahavalanchecenter.org. (Fax 801-524-6301).

The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.

Brett will update this advisory by 7:30 tomorrow morning.

This information does not apply to developed ski areas or highways where avalanche control is normally done.  This advisory is from the U.S.D.A. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.

This advisory provided by the USDA Forest Service, in partnership with:

The Friends of the Utah Avalanche Center, Utah Division of State Parks and Recreation, Utah Division of Emergency Management, Salt Lake County, Salt Lake Unified Fire Authority and the friends of the La Sal Avalanche Center. See our Sponsors Page for a complete list.