STEVENS PASS MOUNTAIN WEATHER

2/21/2012 Weather

General Discussion: Our big storm has slowed its approach just a bit, hence the snow continuing. Heavy rain is still expected below 5000’ this afternoon along with high winds. Heavy snow will return overnight and is expected to fall through most of the day tomorrow.

Long-term: Storm totals by noon Thursday are impressive with up to 5” or more of water possible. There will be a short break late Thursday/early Friday morning with another storm making its way toward the PNW on Friday.

24 hour Forecast Starting at NOON on Tuesday

Cumulative Precipitation Totals:
“water by midnight= 1
“of additional water by 4am= .5
“of additional water by 12pm= .5
24hr total “of water = 2

24hr Snow Total= 12-24

Trend and Timing:
Snow is expected to turn to rain below 5000’ this afternoon and then slowly turn back to snow over night. Snow is expected to begin to taper off early Thursday morning.

Base Area Temperatures (F):
Low: 24 High: 38
Freezing level: 5500’ 3000’

Trend and Timing:
Freezing levels will continue to climb to 5500’ by this evening. Temperatures will then begin to fall through the night. Freezing levels are expected to be around 3000’ by noon tomorrow and 2000’ by tomorrow night.

Winds Speed (mph)/Direction
10-20 WSW +50mph gust possible

Trend and Timing:
Strong westerly flow will continue through the night. Winds will shift NW tomorrow afternoon.