** IMPORTANT ANNOUNCEMENT **

As of March 30th, COAC has suspended backcountry avalanche advisories and pro observations until further notice.

On March 23rd, Governor Brown of Oregon issued Stay at Home orders for the public regarding the COVID-19 outbreak. The directives are clear in that “to the maximum extent possible, individuals stay at home or in their place of residence.” On March 27th the Deschutes National Forest issued a closure of all developed recreation sites including trailheads and snoparks. COAC is committed to supporting our community, local emergency services, and agency partners and because of this we felt it important to cease operations as we all work together to minimize the impacts and spread of COVID-19.   

This decision was not taken lightly. Aside from the need to maintain congruency with the Governors' orders, there are inherent risks with backcountry activities in alpine environments and it’s important to consider unnecessary exposure to COAC forecasters, first responders, and local medical staff in light of the current situation.

We look forward to getting back into the mountains and providing you all with the tools to recreate safely in the backcountry. Until then we thank you for your continued support and wish all our mountain community the best of health and wellness.

Avalanche Advisory for Dec. 11 & 12

THIS Avalanche Advisory EXPIRED ON Dec 12, 2019 at 8:16 pm
Avalanche Advisory published on Dec 10, 2019 at 8:16 pm
Issued by Gabe Coler
Bottom Line
A major winter storm will arrive in the region late on Wednesday and result in an increase in avalanche danger for Thursday.
Avalanche Character 1: Wind Slab
Although we may see some very shallow wind slabs on Wednesday, they are likely to grow substantially by Thursday due to the stormier weather. Wind slabs form at and above treeline on leeward slopes and particularly below ridge lines. A good number to keep in mind is that wind deposited snow may be 3 - 5 times as deep as the new snow is in sheltered areas.
Avalanche Character 2: Storm Slab
Continued snowfall throughout the day on Thursday, accompanied by rising temperatures could result in avalanche activity below treeline.
Snowpack Discussion
Its been SHALLOW and warm! After a little snow last weekend and warm days in between, snow depths continue to be in the 30 - 45 cm. range. With lots of new snow on the way, I'll be focusing my observations, and looking for instabilities in this new snow.
Recent Observations
There have been no recent reports of avalanches. The snowpack has been quite shallow and the temperatures relatively warm.
Mountain Weather
An inch or two of snow overnight tonight will soften up groomers but won't do enough to mitigate our current "low tide" hazards (rocks and stumps). Hopefully things are looking up though as the next system arrives late on Wednesday bringing significant snow overnight and throughout the day Thursday. Temperatures are looking to be relatively warm on Thursday with snow levels around 5000 ft. My fingers are crossed that it remains all snow in the ski terrain. The wind will be from the Southwest and West and gradually ramping up to strong on Thursday.
Disclaimer

This snowpack summary applies only to backcountry areas. Click here for a map of the area. This snowpack summary describes general avalanche conditions and local variations always occur. This snowpack summary expires in 48 hours unless otherwise noted.


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