UDOT PLANNED AVALANCHE CLOSURES!!

Avalanche: UFO Bowls

Observer Name
Patterson
Observation Date
Monday, February 13, 2012
Avalanche Date
Sunday, February 12, 2012
Region
Provo » American Fork » UFO Bowls
Location Name or Route
UFO Bowls
Elevation
10,000'
Aspect
Northeast
Slope Angle
35°
Trigger
Natural
Avalanche Type
Soft Slab
Weak Layer
New Snow/Old Snow Interface
Depth
9"
Width
150'
Vertical
800'
Comments

Widespread SS-N-1 and 2, and LS-N-1 cycle during yesterday mornings high P.I. rates. Picture from UFO Bowl #3 gives general idea of activity in Provo area from 2/12 storm. Didn't see anything that stepped down in to old snow.

Comments

Profile from Timp Divide area below UFO Bowl #1 at 8900', NNW aspect. Early Feb. 3mm SH buried in tact here, 23cm deep. This structure likely a player in some of the SS-N activity from 2/12. approx. 10" of new snow with 1" of H2O not enough of a load to cause step downs into the depth hoar

Comments

Early Feb. SH, buried, size 3mm.

Coordinates