Observation: Summit

Location: Manitoba

Route & General Observations

Manitoba to 3700′ on 1/6 and 1/7

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Observer Comments

No signs of instability on 1/6 or 1/7 on Manitoba... except the large to very large avalanches that occurred during the New Years storm (12/31 - 1/2) are still a solid reminder of deep problems in this area. See ob from 1/5 for images of these slides; in addition to that list, we noticed that the entire northerly aspect of Roaring Ridge had also slid during that timeframe.

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

Single digits in the AM at the parking lot, increasing to teens by afternoon.
A thin layer of valley fog between 1500' - 2000', otherwise few clouds moving in midday.
Light north winds above 2500'

Snow surface

Surface hoar is growing and is now in the 6-8mm size range - larger near creeks. Otherwise, 3-6" ski penetration along the entire route with the snow surface faceting as well.


Dug a pit 50 yards below the ridgeline of the main west face at a shallow spot (110cm)... probing for several hundred yards revealed a height of snow generally in the 160cm range in this elevation band (3200 - 3300'), increasing to 200cm+ near the wind loaded ridgeline. See results below.

Photos & Video
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