Avalanche Advisory Archive Pre-2016

Date Issued:2010-03-27
Danger:4
Trend:3
Probability:4
Size:2
Problem:0
Discussion:

The National Weather Service Forecasts- TODAY...RAIN. HIGHS AROUND 41. EAST WIND 10 TO 20 MPH.

TONIGHT...RAIN...HEAVY AT TIMES. BECOMING WINDY. LOWS AROUND 40. SOUTHEAST WIND INCREASING TO 20 TO 30 MPH WITH GUSTS TO AROUND 50 MPH IN THE EVENING. CHANCE OF RAIN 100 PERCENT.

SUNDAY...RAIN...WINDY. HIGHS AROUND 46. SOUTHEAST WIND 15 TO 25 MPH WITH GUSTS TO 35 MPH IN EXPOSED LOCATIONS. CHANCE OF RAIN 90 PERCENT.

With several inches of snow in the last 24 hours up high accompanied by warming, crossloading winds, and continued precipitation avalanche danger is high at this time.

During the next 24 to 48 hours we will see heavy precipitation at times, accompanied by 5+ degree warming trend.

Slide sizes will continue to increase as well until/unless warming turns the precipitation to the form of rain.

Tip:

This is a classic example of an upside down snowpack. We will be placing heavier denser snow on top of the looser lighter snow in place.

As temperatures are currently already near freezing we may see this go from wet snow to rain before the upside down snowpack has built to a level of natural failure.