Avalanche Forecast

Issued: Feb 14th, 2022 4:00PM

The alpine rating is low, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs and Loose Wet.

Deryl Kelly,

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Jasper.

The hazard may trend toward a higher rating with daytime warming and sustained solar effect. BTL and sunny TL features will be most susceptible to a rapid change.

Summary

Weather Forecast

Tuesday: Cloudy with sunny periods and isolated flurries. Trace. Temps: High -8 C. Wind W: 10-30 km/h.

Wed: A mix of sun and cloud with isolated flurries. Trace. Temps: Low -13 C, High -9 C. Wind: Mostly light, gusting to 35 km/h. 

Thursday: Cloudy with scattered flurries. 5 cm. Temps: Low -13 C, High -7 C. Wind W: 20 km/h gusting to 45 km/h.

Snowpack Summary

Weak temperature crust on all aspects up to 1900m with a sun crust on solar aspects up to 2800m. Upper snowpack has settled but expect natural activity to increase during peak warming of the day. Exposed alpine stripped to rock at ridge top & open features. Dec Facets down 20-70cm. Basal faceting & depth hoar widespread throughout area.

Avalanche Summary

No new avalanche activity observed or reported from road patrol or field team in Fryatt Valley.

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs

Wind slabs formed last week are very stiff with stubborn sensitivity to trigger.Watch for drum like sounds in shallow areas, where wind slabs may be sitting over a shallow layer of facets.

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: North, North East, East, South East, North West.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Loose Wet

An icon showing Loose Wet

Likelihood of triggering wet loose avalanches is decreasing with cooling temperatures and increasing cloud cover.

  • If triggered, loose wet sluffs may step down to deeper layers resulting in larger avalanches.
  • Minimize exposure when the solar radiation is strong, especially if snow is moist or wet.

Aspects: South East, South, South West, West.

Elevations: Below Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 1.5

Valid until: Feb 15th, 2022 4:00PM

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