25th Annual Black Diamond Fall Fundraising Party
Thursday, September 13; 6:00-10:00 PM; Black Diamond Parking Lot
25th Annual Black Diamond Fall Fundraising Party
Thursday, September 13; 6:00-10:00 PM; Black Diamond Parking Lot
Advisory: Logan Area Mountains | Issued by Toby Weed for Saturday - January 27, 2018 - 7:16am |
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special announcement We have discount lift tickets for Alta, Snowbird, Brighton, Solitude, Snowbasin,and Beaver Mountain. Details and order information here. All proceeds from these go towards paying for avalanche forecasting and education! |
current conditions The Tony Grove Snotel at 8400' reports 3 more inches of light new snow and 12" from the storm with 1.1" SWE (or Snow Water Equivalent). It's 18°F, and there's 63 inches of total snow at the site containing 91% of normal SWE . It's 16°F at UDOT Hwy 89 Logan Summit and it's nice and calm this morning. South winds are expected to pick up again today, and resulting drifting will build existing slabs and create more in exposed upper elevation terrain. Pockets with dangerous wind slab conditions exist, and human triggered avalanches are likely. Most sheltered slopes and those at lower and mid elevations are showing good stability despite widespread buried layers of weak faceted snow. We found very nice fast powder conditions yesterday, and it was especially nice on lower angled slopes. |
recent activity A few small natural and intentionally triggered wind slab avalanches were reported from the Franklin Basin Area earlier this week. |
type | aspect/elevation | characteristics |
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LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
|
description
Wind slab avalanches, made up of drifted snow are likely in exposed upper elevation terrain. With lots of nice powder to drift, continuing fairly strong south winds today will build existing slabs and create fresh ones, which are likely be sensitive to human triggering.
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type | aspect/elevation | characteristics |
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LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
|
description
Our snowpit test results show pretty good stability currently, despite the widespread existence of very weak buried faceted snow. Even so, dangerous triggered persistent slab avalanches are possible on steep slopes, especially those with shallow snow and poor snow structure. The faceted layers appear dormant, but a new load from the recent storm may reactivate buried weak layers in some areas this weekend, especially on drifted lee slopes.
Paige took pictures of these well developed and chained facets, which are widespread in Providence Canyon (1/24/18). |
weather A couple of weak weather systems will brush by northern Utah over the weekend. High pressure aloft will build into the region early next week bringing mild weather, followed by a dry cold front Wednesday.
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general announcements The UAC has new support programs with Outdoor Research and Darn Tough. Support the UAC through your daily shopping. When you shop at Smith's, or online at Outdoor Research, REI, Backcountry.com, Darn Tough, Patagonia, NRS, Amazon, eBay a portion of your purchase will be donated to the FUAC. See our Donate Page for more details on how you can support the UAC when you shop. Benefit the Utah Avalanche Center when you buy or sell on eBay - set the Utah Avalanche Center as a favorite non-profit in your eBay account here and click on eBay gives when you buy or sell. You can choose to have your seller fees donated to the UAC, which doesn't cost you a penny Episode 3 of the UAC podcast is live. We talk with UDOT Avalanche Program Supervisor Bill Nalli on how he and his teams keep the Greatest Snow on Earth from avalanching over the open roads and highways of the state. Check it out on ITunes, Stitcher, the UAC blog, or wherever you get your podcasts. The UAC Marketplace is online. The holiday auction is closed, but our online marketplace still has deals on skis, packs, airbag packs, beacons, snowshoes, soft goods and much more. Now is a great time to practice companion rescue techniques with your backcountry partners. Here's our rescue practice video. EMAIL ADVISORY: If you would like to get the daily advisory by email you will need to subscribe here. Remember your information can save lives. If you see anything we should know about, please help us out by submitting snow and avalanche observations. You can also call us at 801-524-5304, email by clicking HERE, or include #utavy in your tweet or Instagram. 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. |