Cornices
N
NE
E
SE
S
SW
W
NW
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Unlikely - Possible
- Größe
- 1–2
Keep these in mind during daytime warming, particularly on Tuesday.
Lawinenlagebericht
Auf der Karte ansehenWaterton Lakes
Apr 11 – 14, 2016Parks Canada
Archiviert · abgelaufen 10 years ago
Lawinengefahr
Wed
Thu
Hochgebirge
Keine Stufe
Waldgrenze
Keine Stufe
Unterhalb
Keine Stufe
Kernpunkte
A warm night on Monday will lead to the snowpack weakening quickly on Tuesday. Avalanche danger should drop steadily through the week with cooler temperatures. But, if we see 10cm+ of snow on Thursday, expect danger to rise again, with new Problems.
Lawinenprobleme
Loose Wet
NNEESESSWWNW- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 1–2
These may occur naturally, and be triggered by humans, during daytime warming on Tuesday. Watch your exposure, especially during sunny breaks. They should become unlikely later in the week.
Wet Slabs
NNEESESSWWNW- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Unlikely - Possible
- Größe
- 2–3
Wet Slab avalanche timing is unpredictable. Although becoming unlikely late in the week, any Wet Slab avalanche will be large and destructive. Cracks in the slope (Glide cracks) are strong indicators of Wet Slab potential.
Weather Forecast
An approaching Pacific trough brings increasingly cool and unstable air. TUESDAY: Freezing level 2900m, dropping to 2400m. Increasing Cloud, moderate - strong SW winds. WEDNESDAY: Freezing Level 2000m, Cloudy, Strong SW winds easing. THURSDAY: Moderate upslope (Easterly) winds, easing, bring low cloud, cold temps, and light snowfall above 1600m.
Snowpack Summary
The snowpack is moist to wet in most areas. Strength depends on how well the surface crust recovers each night (expected poor on Tuesday). The snow will be strong while frozen, but increasingly weak with any sustained warm temperatures / during periods of strong sun. Wet Slab and glide avalanches, although Unlikely, are a concern all times of day.
Avalanche Summary
A widespread avalanche cycle (Cornice, Loose Wet, and Wet Slab avalanches, Size 1 - 2) occurred late Friday and Saturday with high freezing levels. This has slowed somewhat, but a few large natural avalanches were observed on Sunday (Loose Wet), and Monday (a Size 2.5 Cornice and Wet Slab avalanche). Many glide cracks exist - avoid these areas.