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 4/6/2018

THIS Avalanche Advisory EXPIRED ON Apr 8, 2018 at 5:54 pm
Avalanche Advisory published on Apr 6, 2018 at 5:54 pm
Issued by Jonas Tarlen
Bottom Line
Its wet out there. Freezing levels should spike Friday night and then drop substantially over the weekend. Until we get a solid freeze, Wet avalanche problems will be our main concern. Later in the weekend as temps drop we should see several inches of new snow up high with strong west winds. Our concerns will shift to the new storm snow and windslabs.
Avalanche Character 1: Loose Wet
Rain and warm temperatures have saturated the upper snowpack. This melting causes the surface snow to loose its cohesion and become weak. Roller balls are sign of Loose Wet. This problem will linger until we get a good freeze.
Avalanche Character 2: Wet Slab
The rain and warm temps will spike Friday PM and Sat AM. If enough water percolates down through the upper snowpack, we could see wet slabs early Sat.
Avalanche Character 3: Wind Slab
As snow levels drop and this rain transitions to snow into Sunday, look for windslab formations at ridge tops and North-East facing slopes.
Snowpack Discussion
We should see a transition from Wet problems to new snow and Wind Slab problems sometime between Sat and Sunday. Upper elevations will transition first as the freezing level drops.
Recent Observations
We have been in a melt / freeze cycle for the past 10 days, with just a few cm's of snow on Tues. The only reported avalanches have been Loose Wet surface slides on Sunny slopes earlier in the week. There has been no evidence of any persistent weak layers.
Mountain Weather
This souther flow of moisture will continue to bring rain through Sat morning with freezing levels near 9500'. A cold front will then move in Sat dropping snow levels to 4500' by Saturday eve with strong winds out of the West. We could see up to a foot of new snow by Sunday.

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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