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 Monday - February 13, 2017 - 7:22am |
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current conditions Temperatures are in the mid to low 20's F this morning. At lower elevation trail heads, temperatures are in the teens F. Light winds are blowing 5-10 mph from the NE although the Arrowhead station has winds blowing 20 mph from the N. Yesterday's weather had gusty SE winds that drifted some snow, and high temperatures in the upper 30's F. With clear skies overnight and below freezing air temperatures, snow on southerly aspects should have an ice crust on top this morning. Shaded slopes still have nice soft powder. |
recent activity There were plenty of human triggered avalanches yesterday. Fortunately they were all less than a foot deep. Most were sluffs or point releases; however, some were soft slabs and wind slabs. Ski resorts also triggered shallow soft slab and wind slab avalanches. On southerly slopes there were natural, wet loose avalanches. A full list of avalanches is HERE. Photo below shows two natural slides, a point release and a shallow soft slab typically of many other slides triggered yesterday. Photo below from 10,000 feet yesterday in the backcountry behind Alta in Dry Fork. Photo - UAC |
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
Wet loose slides occurred predictably with the first day of strong sunshine and warm temperatures yesterday. Overnight air temperatures in the 20's F and clear skies (which can cool the the snow even more than air temperatures) mean the snowpack should be refrozen this morning. The key to avoiding wet avalanches is timing. As the snow surface warms and melts, loose wet slides will start occurring but shouldn't be too big or surprising. Loose wet slides were spotted on west aspects of Timpanogos yesterday afternoon. Photo - K. Osborn |
type | aspect/elevation | characteristics |
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LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
|
description
Now is a great time to get into the mountains and enjoy beautiful sunny weather and calm winds. The avalanche problems are mostly predictable. I would be a little weary of going into extreme terrain today where the consequences of even a small slide can be severe. Given the avalanche activity yesterday, it is worth waiting another day or two before riding such extreme terrain. Watch for these problems:
One skier was almost carried over a rock band by an avalanche yesterday. See the photo below and read more here. |
weather Today will be a repeat of yesterday with light winds, sunny skies, and temperatuers warming to near 40 degrees F. |
general announcements
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