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Forecast for the Logan Area Mountains

Paige Pagnucco
Issued by Paige Pagnucco on
Thursday morning, April 15, 2021
There is a MODERATE danger for avalanches within the new snow at mid and high elevations. The avalanche danger is generally LOW at low elevations. Evaluate terrain carefully and make conservative terrain choices. Avoid areas of freshly wind drifted snow. Wet loose avalanches within the new snow are possible if the sun comes out today.
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Weather and Snow
It's 20°F this morning at the 8400' Tony Grove Snotel, and there is 54" of total snow with 21.3" of snow water equivalent. New snow totals range from 6-12" with the higher amounts occurring in the northern part of the zone. Easterly winds are blowing 10-20 mph with gusts in the 20-30's at the CSI Logan Peak weather station and it's a chilly 15°F at 9700'.
A quick return to winter for a few days in the mountains - fresh snow and cold temperatures should make for decent riding conditions. The Logan mountains have picked up about 6-12" of snow with a few more inches possible by tomorrow. Temperatures today will reach 31F and winds will shift to the northwest midday blowing 10-15 mph.
A low pressure system will bring cool and unsettled conditions through the remainder of the week. Drier and warmer conditions are anticipated over the weekend into early next week.
Recent Avalanches
No new avalanches were reported or observed in the Logan Zone in the last week.
There were a few avalanches yesterday in the Salt Lake Area mountains.
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Avalanche Problem #1
New Snow
Type
Location
Likelihood
Size
Description
Though there were no reports of avalanches yesterday in the Logan zone, there were multiple soft slab avalanches reported in the SLC area mountains with a few people caught and carried. These avalanches were about 12" deep and 40-80' wide and failed on the new snow/old snow interface due to poor bonding. Though the new snow is stabilizing, it is still possible to trigger a soft slab or freshly wind drifted snow in steep terrain.
Find a smaller test slope before hitting the bigger slopes and consider choosing slopes that are free of trees, rocks, cliffs, etc to minimize consequences.
And since it is mid April, loose wet avalanches entraining moist new snow are possible if the sun comes out today and/or temperatures warm more than expected.
Additional Information
General Spring Travel Advise:
As daytime temperatures rise, softening the snow, the danger of wet avalanches will increase, so its a good idea to get in the habit of an early start and to plan on heading down before things get too sloppy.
-Watch for trees or other terrain traps below you if you venture onto steep slopes.
-Roller balls, pin-wheels, and natural wet avalanche activity are red flags indicating potential for people to trigger wet avalanches.
-If you start sinking deeply into wet snow, or if the snow you are traveling on becomes unsupportable due to the heat, it's time to leave.
With all the dust on the snow this year, and a snowpack with well below average SWE, mountain streams are melting out several weeks earlier this spring than they did last spring.
General Announcements
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Remember your information can save lives. If you see anything we should know about, please help us out by submitting snow and avalanche observations....HERE. You can also call us at 801-524-5304, email by clicking HERE, or include #utavy in your Instagram, or @UAClogan on Twitter.
We will update this forecast by around 7:30 Friday morning.
This forecast is from the USDA Forest Service, which is solely responsible for its content. The forecast describes general avalanche conditions and local variations always occur.
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