Observation: North Fork Park

Observation Date
3/14/2019
Observer Name
Bill Brandt
Region
Ogden » Ben Lomond » North Fork Park
Location Name or Route
North Fork Park
Weather
Sky
Clear
Weather Comments
Clear sunny day until late afternoon when clouds rolled in from the NW and light snow started. No significant accumulation.
Snow Characteristics
Snow Surface Conditions
Powder
Damp
Snow Characteristics Comments
Damp snow on solar aspects and at low elevations. Powder and soft wind slabs at higher elevations.
Red Flags
Red Flags
Wind Loading
Red Flags Comments
Cross loading extending down to mid elevations. Loading east facing sub ridges.
Avalanche Problem #1
Problem
Wind Drifted Snow
Trend
Decreasing Danger
Problem #1 Comments
Sensitive wind slabs on steep east facing slopes. Intentionally triggered wind slab on buried surface facets and a hard sun crust at 8500 ft E on a 34 degree slope which rolled over to greater than 40 degrees. About 30 ft wide running about 150 ft vertical. The crown varied from about 4-12 inches deep. Hang fire quick pit failed on the back cut.
Avalanche Problem #2
Problem
Wet Snow
Trend
Increasing Danger
Problem #2 Comments
Ski cuts produced wet sluffs on steep slopes with underlying crusts at low elevations.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate