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.

Tumalo Full Profile

Rapid temperature rise
Observation Date/Time:
Fri, Feb 28, 2020 - 2:30 PM
Phil Bowker
Three Sisters Area / 7441'
Report Type:
Snow Conditions   No Avalanche Activity  
Travel Mode:
Ski or Snowboard  
Sky Conditions:
Broken (5/8 - 7/8)
Height of Snow (HS):
448 cm
Wind Direction/Speed:
W / Light: 1-16 mph

Written Report:
Quite a mixed bag of snow surfaces on Tumalo Mtn today. Skinning up the west side at 9:30am I needed ski crampons for the last few hundred feet as the snow surface was a really firm melt freeze crust in places.

On the summit at 10:52am skies where broken with high cirrus clouds, no precipitation, no blowing snow, light west winds, air temp was 3c (37.4f)

Good spring skiing conditions skiing in the bowl with up to 10cm of ski penetration in loose wet snow producing pin wheels and rollerballs at each turn.
I did not see any signs of instability in terms of cornice fall, shooting cracks, or whumphfing.



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