** 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.

Tumalo Bowl avalanche

Location Name
E Bowl, Tumalo mountain
Region
Broken Top Area
Name
Drew VanNice
Email Address
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Position
Public
Date and time of avalanche (best estimate if unknown)
Red Flags
Recent avalanche activity
Recent loading by new snow, wind, or rain
Rapid warming
Obvious avalanche path
Avalanche Type
Slab
Trigger type
Snowmobiler
Slope
35degrees
Aspect
East
Elevation
7700ft.
Bed Surface
Old Snow
Weak Layer
Storm Snow
Crown Height
1 ft
Avalanche Width
300ft.
Avalanche Length
500ft.
Terrain
Above Treeline
More detailed information about the weather

  

More detailed information about the avalanche

 Toured out of Dutchmen Sno park around 1500 april 8th 2015... my van said it was 39 degrees in the lot so hopes of riding the bowl were low but I figured I'd at least get some exersize and see how the snow was holding up for future objectives this weekend... what I saw was what I expected hot n heavy cascade concrete. Got to the top and instantly noticed the slide that broke off into the East bowl on the south end of the ridgeline (right by the non motorized only signs). I didnt see the slide go down and was waiting to see if anyone had a more detailed report from the slide. I didnt gather any detailed data from the crown as I was touring alone and didnt want to expose myself to any unnessesary risk. From the tracks I saw it appeared that two sledders droped into the bowl, looped around at the bottom and then high marked back up to the ridge. Like I said I didnt see the slide go down but figured I would post this to remind people even though Tumalo bowl is a familiar backcountry ski spot, it is textbook avalanche terrain (esspesialy with these classic spring storms; 3 days of dry snow followed by rapid warming). Dont let the scarcity of pow days sway your judgement, avalanches dont care that pow days are far and few between this season.