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ARCHIVED - Forecasts expire after 24 hours.
Issued
Fri, November 6th, 2009 - 7:00AM
Expires
Sat, November 7th, 2009 - 7:00AM
Forecaster
CNFAIC Staff
Avalanche risk The Bottom Line

General Early Season Advisory:

Still early season, 2-4 inches of snow at the highway elevation of 1000 ft. Tree line, at 1800 has 12-15 inches. The alpine has various amounts due to strong winds this week. I expect many areas of bare ground and CNFAIC Staffs with feet of wind loaded snow. We did see some surface hoar formation last week. Fairly insignificant but could form a weak layer under current and new snow.

There is certainly plenty of snow to start thinking avalanche safety. It only takes a couple inches to form dangerous conditions if the cards are stacked against you. Early season is the time to be super heads up for terrain features and terrain traps. Small slab avalanches could take you for a ride into gullies, creeks, or over cliffs and rocks.

Take the time to check over your rescue gear. Beacon, probe, and shovel – check. Practice and travel with an experienced partner.

Lots of great avalanche classes coming up. Look at our calendar. Fire side chats (free) start next week.

7 days a week advisories will start when we get more significant snow.

Fri, November 6th, 2009
Alpine
Above 2,500'
0 - No Rating
Avalanche risk
Treeline
1,000'-2,500'
0 - No Rating
Avalanche risk
Below Treeline
Below 1,000'
0 - No Rating
Avalanche risk
0 - No Rating
1 - Low
2 - Moderate
3 - Considerable
4 - High
5 - Extreme
Avalanche risk Avalanche risk Avalanche risk Avalanche risk Avalanche risk
Travel Advice Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features. Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern. Dangerous avalanche conditions. Careful snowpack evaluation, cautious route-finding, and conservative decision-making essential. Very dangerous avalanche conditions. Travel in avalanche terrain not recommended. Extraordinarily dangerous avalanche conditions. Avoid all avalanche terrain.
Likelihood of Avalanches Natural and human-triggered avalanches unlikely. Natural avalanches unlikely; human-triggered avalanches possible. Natural avalanches possible; human-triggered avalanches likely. Natural avalanches likely; human-triggered avalanches very likely. Natural and human-triggered avalanches certain.
Avalanche Size and Distribution Small avalanches in isolated areas or extreme terrain. Small avalanches in specific areas; or large avalanches in isolated areas. Small avalanches in many areas; or large avalanches in specific areas; or very large avalanches in isolated areas. Large avalanches in many areas; or very large avalanches in specific areas. Very large avalanches in many areas.
Observations
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This is a general backcountry avalanche advisory issued for Turnagain Arm with Turnagain Pass as the core advisory area. This advisory does not apply to highways, railroads or operating ski areas.
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