Observation: Ogden Mountains

Observation Date
12/4/2021
Observer Name
Derek DeBruin
Region
Ogden » Ogden Mountains
Location Name or Route
Ogden area mountains
Comments
The photos below are satellite images (from 3 December 2021) of the Ogden area mountains showing current snow coverage in the range. Given the long stretch with little/no snow, any snow currently on the ground creates weak underlying layering for new snow and potential avalanching in these zones. If this rotten snow sticks around, it could create persistent weak layers throughout the season, remote/sympathetic triggering, and/or "repeater" slides--all things to know about and avoid. I'm posting this now in advance of the incoming snow next week (fingers crossed!) as new snow will cover up this older snow, making these zones more difficult to identify.
The red lines in the images are approximate contour lines for 8500ft and 7000ft, which differentiate Ogden's upper, mid, and low elevation bands. The outside edge of each image is the low elevation band, the inner part of each image is the upper elevations, with mid between the red lines. Indicated in blue are some well known landmarks, zones, etc. to help identify the features in the satellite imagery. I'll emphasize again that contour lines and map locations are approximate. The entire Ogden skyline is posted here from north to south: Ben Lomond, Chilly Peak, Lewis Peak, and Mount Ogden (images include names of the massif in the lower left corner).
Ben Lomond/Chilly Peak:
West and south sides of the crest are dry. The Cutler Headwall and north facing zones of Cutler Ridge, Bailey's, and Rodeo Ridge are all holding snow, as are Chilly Peak and the south side of Black Canyon (north side of Island Peak).
Lewis Peak:
Almost completely dry, with just the barest skiff of snow in the highest NE facing terrain (aside from the blob of artificial snow at Nordic Valley). Note that the summit of Lewis Peak doesn't actually reach into the upper elevation band, so the contour line in the photo is just the middle elevation band.
Mount Ogden:
Snowbasin has clearly been making snow (you can see the streak of white leading NE to the base area). However, the astute observer who is also making use of the Snowbasin webcams will note that there is old snow currently on the ground in the high elevation N/NE terrain to include much of thepopular periphery skiing: Hell's Canyon, Lone Tree, Middle Bowl, Porky's/Race Starts, Mount Ogden chute, etc. The backside bowls behind Strawberry also still have rotting snow on their south (north-facing/skier's left) sides; be mindful of this as stacking tracks around the changing aspects of the bowl is a great way to accidentally discover spatial variability and trigger a surprise avalanche. Though harder to see in the shade, Banana Chute, Toto, and the upper reaches of Coldwater also have snow in them at the moment.
Today's Observed Danger Rating
None
Tomorrows Estimated Danger Rating
None