Avalanche Advisory Archive Pre-2016

Date Issued:2014-02-21
Danger:2
Trend:3
Probability:0
Size:2
Problem:0
Discussion:

TODAY ... MOSTLY CLOUDY. FLURRIES. HIGHS AROUND 30. LIGHT WINDS.

TONIGHT ... PARTLY CLOUDY. LOWS 14 TO 20...COLDEST IN WIND
SHELTERED AREAS. EAST WIND INCREASING TO 10 MPH LATE.

SATURDAY...SUNNY. HIGHS AROUND 31. NORTHEAST WIND 15 TO 25 MPH.
GUSTS TO 40 MPH IN THE AFTERNOON DOWNTOWN JUNEAU AND DOUGLAS.

There was only a few centimeters of new snow added yesterday and winds stayed 10kts and below, not moving much of the existing snow around. Temps also remained fairly consistent at the Tram ranging from -4c to -6c.

With less than an inch of snow in the forecast for today, and winds supposed to remain light hazard remains at MODERATE.

Winds are supposed to pick up tomorrow and this will cause the hazard to rise. There will be increased transport, and therefore loading, of our existing light density snow. The new wind directions will mean that these loads will occur in new areas.

Natural slides are unlikely until the winds pick up, and any slides today are unlikely to to damage buildings or roads. Human triggered slides remain possible and the size of these remains large enough to bury a person.

Reports continue to trickle in of skier triggered slides on Douglas. Things are becoming more sun affected by aspect, but the largest hazard remains with elevation, and caution must be taken above 2000ft.

Tip:

THIN SPOTS

It is generally easier to trigger an avalanche from a thin spot such as near rocks or a cliff band when a weak layer is present in the snowpack. These can also be found at the apex of steep roll-overs

Forecaster:Chris Eckel