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: Provo Area Mountains | Issued by Mark Staples for Saturday - January 6, 2018 - 6:33am |
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special announcement Episode 2 of the UAC podcast has been released. Drew Hardesty talks Avalanche Weather with Professor Powder himself, atmospheric sciences professor and author of Secrets of the Greatest Snow on Earth, Jim Steenburgh. Check it out on ITunes, Stitcher, the UAC blog, or wherever you get your podcasts. |
current conditions This morning temperatures are in the mid 30's F. Winds are averaging 10-15 mph gusting 20-25 mph from the SSW. On shaded aspects the thin snowpack continues to weaken and facet. On SW, S, and SE aspects, the snow surface has become damp during the last few days and refrozen at night. Week in Review [Click HERE for a more detailed report] Friday December 29: A skier-triggered avalanche occurred in Dry Fork. This avalanche was 2.5' deep and 100' wide, running 400' vertical. It was a persistent slab avalanche, failing in faceted snow that formed during the earlier part of the winter. Saturday December 30 - Thursday January 4: Our continued pattern of no storms with mostly clear skies. Moderate west/northwest winds were observed, particularly early in the week, but they only produced small pockets of unresponsive wind-slabs. Observers reported continued collapsing in the snowpack, but collapses were much less common than over the week between Christmas and New Years. The clear skies have helped to weaken the snowpack, especially at the surface. |
recent activity The one notable thing has been sluffing of the surface snow which is an indication of how weak and faceted it has become. See the photo (M. White) below of a long running sluff along the Park City Ridgeline. While not a major concern now, it is a heads up once snow accumulates on top of it. The snow surface has been similarly weakening in the Provo area mountains. |
type | aspect/elevation | characteristics |
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LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
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description
Today's expected snowfall shouldn't change the avalanche danger. A low danger means that avalanche conditions are generally safe, but some unstable snow is possible on isolated terrain features. Watch out if more than a few inches of snow accumulates by later this afternoon.
Another hazard will be hitting rocks that are barely sticking out of the snow this morning but will be hidden by today's snowfall. |
weather Today's weak storm will bring snow late this morning through this afternoon and bring 1-3 inches of snow with another inch or so tonight. High pressure with clear, sunny weather returns Sunday through Tuesday. Winds today will remain about 10 mph with gusts of 15-20 mph. They will shift from the SW to W during the day. Temperatures should rise into the upper 30's F. A better chance for more snow will come with a storm that arrives sometime Tuesday. |
general announcements CLICK HERE FOR MORE GENERAL INFO AND FAQ Support the UAC through your daily shopping. When you shop at Smith's, or online at REI, Backcountry.com, 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. 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. |