11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
Ad
Observer Name: 
Cade Beck - compiled by Brett Kobernik
Observation Date: 
Monday, January 18, 2016
Avalanche Date: 
Monday, January 18, 2016
Region: 
Rolfson
Location Name or Route: 
Nearing upper Rolfson
Elevation: 
9800
Aspect: 
Northeast
Trigger: 
Snowmobiler
Avalanche Problem: 
Deep Slab
Weak Layer: 
Facets
Comments: 

This is a notable avalanche observation.  It occurred in an area that did not avalanche during the Christmas avalanche cycle.  This means that the old weak layers under the entire season's snowpack failed.  This is the only avalanche that we've heard of that has done this since Christmas.  This is quite unnerving as it suggests that other slopes may do the same thing.  This is in an area where wind loading over the last few days probably played a big role.

The exact timing and trigger is speculation but the avalanche certainly released over the last 24 hours and tracks around it very much suggest it was snowmobile triggered.

If you trigger an avalanche, all of us who recreate here along the Manti Skyline very much appreciate hearing about it.  Please let the public know by filling out this form HERE.  Thank you!!  We often don't here about many of the avalanches triggered in the Manti Skyline region.  Triggered avalanches are some of the most valuable information for keeping us all safe.

Forecaster note:  It was later confirmed that this indeed was triggered by a snowmobiler (photos below). 

Coordinates: 
Ad

Support the Avalanche Center through your purchases

Discount lift tickets
All proceeds from ticket sales benefit the UAC when you purchase your next lift tickets.
Lift tickets available in November
Need new gear?
Make your next purchase from our Affiliate Partners and the UAC will receive a portion of the sales.
Shop
Sign up for our newsletters, emails and daily forecasts to stay up to date.
Subscribe