BOTTOM LINE
Danger by aspect and elevation on slopes approaching 35° or steeper.
(click HERE for tomorrow's danger rating)
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Danger Rose Tutorial
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There is a level 2 or Moderate avalanche danger in the backcountry around Logan, and heightened avalanche conditions exist on steep slopes with significant deposits of new and especially recently drifted snow. Pockets with a level 3 danger may exist in some areas on steep drifted slopes at upper elevations. Evaluate the snow and terrain carefully, especially in exposed areas and on the lee sides of ridge tops..... |
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CURRENT CONDITIONS |
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We picked up a nice blanket of fresh snow overnight, with a bit less than a foot of new snow accumulated across the region. You should find very good shallow powder riding conditions in the backcountry today, but as always with a new shot of snow and enough wind to drift it about, you'll also find heightened avalanche conditions.
The Franklin Basin Snotel, just over the Idaho State Line, reports 11 new inches, and the Tony Grove Snotel at 8400' reports 9 inches on the settled snow stake with 1.1 inches of water. There's 67 inches of total snow at the site containing 183% of average water for the date. The CSI weather station on Logan Peak reports moderate winds from the north-northwest this morning, and its 10 degrees at 9400'. |
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RECENT ACTIVITY |
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No recent avalanches were reported locally.... |
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THREAT #1 |
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PROBABILITY |
SIZE |
TREND |
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Over the next
24 hours.
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Overnight winds shifted from west to north and sustained hourly average windspeeds in the 15-20 mph range, which is plenty strong enough to drift accumulating snow into lee slope starting zones. Watch for stiffer drifted snow or potential wind slabs near ridge lines and in and around deposition prone terrain features like gullies, cliff-bands, and sub-ridges. You could trigger wind slabs 1 to 2 feet deep on drifted slopes approaching 35 degrees or steeper. |
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THREAT #2 |
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PROBABILITY |
SIZE |
TREND |
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Over the next
24 hours.
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In some areas, last night's new snow may not stick very well to the crusty snow from the rain and warmth earlier in the week. Shallow soft slabs and loose avalanches involving the new snow are likely today, but will probably be fairly manageable and non-threatening unless you are on a steep slope above trees or other potential terrain traps like cliffs or sink holes..... It will be wise to test smaller steep slopes in a safe environment before committing to the bigger lines. |
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MOUNTAIN WEATHER |
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The storm will push south and east out of our region this morning, leaving cold air in it's wake. Expect gradual clearing and a chance for a bit of sunshine later today, with mountain temperatures in the mid teens. Northwest winds will shift around from the northeast tonight and temperatures will remain fairly cold at around 10 degrees F. We'll see some clouds and continued cool temperatures Thursday and Friday. A south wind ahead of the next batch of Pacific storminess will warm things up on Saturday. The weekend storm looks fairly moist but warm, and rain is a good possibility at lower elevations once again...... |
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GENERAL ANNOUNCEMENTS |
You can view a photo summary of last year's avalanche activity in the Logan Area HERE
Send us your avalanche and snow observations. You can also call me at 435-757-7578, or email to uac@utahavalanchecenter.org
Donate to your favorite non-profit – The Friends of the Utah Avalanche Center. The UAC depends on contributions from users like you to support our work.
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. |
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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. |
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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. |
