Weekend Snow Report for 02/20/20–Check Before You Go!

Weekend Snow Report for 02/20/20–Check Before You Go!

As the weekend approaches, make sure to add looking at the snow report to your gear checklist!

Avalanche risk and conditions of the snow pack are as important to your safety as your snowsuit.

Your Weekend Snow Report is brought to you by Rocky Mountain Powersports.


Western Wyoming Avalanche Advisory

Skies were mostly clear today under a building high pressure ridge. Temperatures were mostly in the single digits above and below zero. Temperatures dropped to near 20 below this morning in some of the coldest valley locations and warmed to near 20 above this afternoon in some mountain locations. Winds were light at 5 to 15 miles per hour and veered from the northwest to the northeast and then backed to the west.

At the Surprise Meadows weather station at an elevation of 9,580 feet in Grand Teton National Park the 33 inches of snow that fell over the weekend has settled to a depth of 23 inches. At the upper elevations in the Teton Range small pockets of slab have been skier triggered in very steep terrain. A large slab avalanche was skier triggered this afternoon on an east aspect of Beaver Mountain south of Stinking Springs in the Hoback Canyon. That path had recently slide naturally. The slide was reported to be 4 feet deep. It failed on faceted snow on the ground surface.

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Forecast for Thursday, February 20, 2020

The weather will be dry with a building temperature inversion. At the upper elevations temperatures will drop to around zero overnight and rise into the low 20’s during the day. In the coldest valley locations temperatures will into the negative teens overnight and rise into the 20’s during the day. Winds will stay light at 5 to 15 miles per hour and back from the northwest to the southwest.

At the higher elevations wind slabs can still be triggered by skiers and snowmobilers in steep avalanche prone terrain. These slabs are generally expected to be one to three feet deep. However today a skier triggered a four, foot deep slide on faceted snow in a slide path on Beaver mountain that had previously slide. Slab avalanches could be human triggered on isolated terrain features at the lower elevations. Sunshine and warmer temperatures are likely to increase the sensitivity of these slabs to human triggers. Monitor conditions for increasing hazard on steep sunlit aspects during the warmest portion of the day. The general avalanche hazard is expected to be moderate at the higher elevations. The hazard is expected to be low below an elevation of 9,000 feet in the Teton area, 8,500 feet in the Greys River area and 8,000 feet in the Togwotee Pass area.


Trend Through the Weekend

Dry conditions are expected into the weekend. Rising temperatures and sunshine will increase the hazard in the afternoons.

For area specifics, go to the Bridger-Teton Avalanche Center website.


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Ride safe and prepared!

 
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