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.

Snowpack Summary for 12/14/2018

THIS Avalanche Advisory EXPIRED ON Dec 16, 2018 at 10:05 pm
Avalanche Advisory published on Dec 14, 2018 at 10:05 pm
Issued by Gabe Coler
Bottom Line
The latest snow has provided some great skiing and was a welcome sight after the strong winds of this morning! It will also likey build Wind Slabs below ridge tops on North and East slopes. This and any other new precipitation will continue to increase the load on a burried surface layer that exists approximately 40 cm. beneath the surface. This persistent weak layer appears fickle and in most cases largely unreactive, but in some places still extremely weak.
Avalanche Character 1: Wind Slab
The most recent 8-10 cm. of snow and any more that we receive overnight will likey build windslabs below ridgetops on North and East facing slopes.
Avalanche Character 2: Persistent Slab
While we haven't seen any specific avalanches that we can attribute to the December 8th Surface Hoar layer, it continues to prove very weak in specific snowpack tests across the region. It is currently burried approximately 40 cm. below the surface.
Snowpack Discussion
There is a likelihood that the most recent 8-10 cm. of snow has built wind slabs on North and East slopes. Beyond that my primary layer of concern continues to be the December 8 surface hoar which is now burried approximately 40-45 cm. below the surface. While we haven't seen any specific avalanches that we can attribute to this layer it continues to be very weak in snowpack tests across the region.
Recent Observations
There was mention of slab activity posted to the COAC site from earlier this week at Tam Rim. Without more info, it is difficult to tell the avalanche character.
Mountain Weather
What a treat to be getting a few inches of nice snow this afternoon and evening! There looks to be a bit of a break on Saturday, before South West flow brings more moisture into the area. This new precipitation on Saturday night and Sunday will be accompanied by warming temperatures, and right now snow levels are predicted to rise to 6500 ft. Likely we'll get a couple of inches of snow, and maybe some periods of rain at the trailhead elevations. The wind looks to be consistently from the South and South West.

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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