South Rockies Avalanche Forecast — Jan 28, 2013

Highlights

Avalanche danger could rise to CONSIDERABLE in areas with enhanced snowfall on Monday night.

Avalanche problems

Wind Slabs
N
NE
E
SE
S
SW
W
NW
Alpine
Treeline
Below treeline
Likelihood
Possible - Likely
Size
1–4
Wind slabs may be found behind ridges, ribs and gully walls. Storm slabs and loose dry avalanches may be encountered in terrain not affected by wind.

Confidence

Poor - Forecast snowfall amounts are uncertain on Tuesday

Weather Forecast

Monday night: There’s a chance of enhanced snowfall overnight, bringing locally heavy amounts. I'm not banking on this, so if there is a lot of snow (20 cm +) in your local area, consider the posted danger ratings too low. Strong NW winds are also possible.Tuesday: Light SW winds. Alpine temperature near -15. Very light snow. Wednesday: Strong NW winds. Alpine temperature near -11. Very light snow.Thursday: Light W winds. Alpine temperature near -9. Very light snow.

Avalanche Summary

A few loose dry avalanches to size 1.5 were observed on Sunday.

Snowpack Summary

Recent snowfall amounts and winds have been variable across the region. Around 15-35 cm snow overlies old surfaces buried on Jan 23. Preserved surface hoar up to 21 mm in size has been found in the North Elk Valley, buried by about 15 cm of snow. It doesn't appear to be a widespread layer, but could be a localized problem once buried with further snowfall. The most wind-affected areas, including Crowsnest Pass and Harvey Pass, have scoured south and west-facing slopes. Wind slabs may be found on lee slopes.

Avalanche danger