Friday February 9, 2018

Sunday February 11, 2018
Saturday February 10, 2018
Friday February 9, 2018
Confidence: High - well aligned forecast models

Main Concerns

Cornice Fall - view Avalanche Problems for detailed information.

Travel & Terrain Advice

Expect surface conditions to become a very hard slippery surface crust. All mountain travelers should consider the option to travel on slopes that minimize exposure to slips and falls and terrain traps such as cliffs.

Avalanche Summary

No new natural or explosive triggered avalanches

Avalanche Problems

Cornice Fall

Cornices can be found on north aspects at both the treeline and the alpine. Cornices will continue to gain strength with forecast cold temperatures becoming stubborn to human triggering. If triggered these could produce an avalanche big enough to bury injure or kill a traveler. Take the time to identify these features and ensure appropriate travel techniques when either above or below these features.

Snowpack Summary

Continued cooling has begun to solidify the upper surface snow forming a hard well bonded upper snow pack. Mid and lower snow-pack are well settled.

Snowpack Details

Surfacehard crust
Uppermoist and well settled
Midwell settled
Lowerwell settled

Past Weather

A period of warm alpine temperatures and rain have been followed by clearing and cooling.

Weather Forecast

A strengthening arctic ridge of cold air to the east of the region will bring to the forecast area clearing sky, cooling temperatures and freezing level to sea level during the overnight period.

Friday Clear, temps -3 to -6, winds light Nw, freezing level 900 m dropping to sea level overnight.

Saturday Clear, temps -5 rising to +1, winds light Ne, freezing level 0 m rising to 900 m mid day.

Sunday 5 mm of precipitation, temps - 8 to 0 , winds light to moderate Sw becoming Light Nw late in the afternoon, freezing level to 0 to 800 m.

Posted on Friday February 9, 2018 by Jesse Percival

Past Bulletins