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Heavy snowfall and drifting by strong winds will likely create dangerous avalanche conditions on slopes facing northwest through southeast at upper elevations today. Yesterday, we found wind-affected snow in exposed upper-elevation terrain near Naomi Peak, with ongoing drifting and drifts already up to around two feet deep in places. Shallow powder riding was pretty good in more sheltered terrain, and today's expected shot of new snow will probably improve conditions further. Periods of rapid accumulation and drifting snow will elevate the avalanche danger during the day today. You'll find safer and better riding conditions in the meadows and on lower angled slopes, less than about 30° in slope steepness.
The Tony Grove Lake Snotel at 8400' reports 29° F, with 99 inches of total snow containing 120% of normal snow water equivalent. At 6:00 on Logan Peak, winds are blowing from the south-southwest above 30 mph, with gusts of 55 mph, and it's 23° F at 9700' in elevation.
At our new Paris Peak weather station at 9500', it's 22 °F, and the wind is blowing from the south-southwest at 20 mph, with gusts of 41 mph. It's 26° F and pretty windy at the generally sheltered new Card Canyon weather station at 8800', now with 86 inches of total snow on the ground.
Today will be stormy, with heavy snow at times at all elevations in the mountains. High temperatures at 8500' will be near 31° F, but will drop to around 25° F during the day. It will be breezy with winds blowing from the southwest 25 to 30 mph this morning, veering from the west and northwest in the afternoon. Expect periods of heavy snow, especially between noon and 3:00 PM, with 9 to 13 inches of accumulation possible on upper elevation slopes and 5 to 9 inches at lower elevations in Logan Canyon.
There will be a break tomorrow, with mostly cloudy conditions. More snow is expected over the weekend, with several inches in the forecast for Saturday and several more again on Sunday.
Yesterday, a snowmobiler remotely triggered a small wind slab avalanche from quite a distance on Cornice Ridge in the Central Bear River Range. Riders also triggered a few other small wind slabs in drifted upper-elevation terrain.
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HERE.