Avalanche: Summit

Location: Fresno

Date:
Observer:
Route & General Observations

APU Snow Science toured in Summit, Manitoba and Fresno, to see how the new snow was behaving in this zone with the warming end of March temperatures.

Avalanche Details
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Trigger UnknownAvalanche Type Unknown
Aspect UnknownElevationunknown
Slope AngleunknownCrown Depthunknown
WidthunknownVertical Rununknown
Avalanche Details

We saw many wet loose avalanches on sunny aspects while driving through Turnagain Pass. Most of them were small size and had not entrained much snow with them.

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.
Weather

Blue sky turned into scattered skies during our tour.
Air temps stayed below freezing the whole time, we measured -2.6C @1300.
Calm to very light winds.
No new precipitation

Snow surface

~10 cm of dry decomposing new snow on all elevations on top of the most recent sun crust. We did not see any NSF or surface hoar formation.
We did not travel through any wind impacted zones.
Snow surface stayed surprisingly dry, only on upper elevation steeper southerly slopes snow was getting moist on surface. No need for skin wax on Fresno, but on Manitoba side skis were glopping up.
Ski quality high.

Snowpack

We dug on Fresno at 2100' on SE aspect. HS 160-205cm.
Layer of concern facets/BSH on top of crust 30-40cm from surface
Moderate strength, moderate propagation propensity, poor structure. Stability fair to good.
(CT11SC, ECTP10, PST70/100End)

Photos & Video
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