MOUNTAIN WEATHER FORECAST

0700 Thursday:   

Remembering the three amigo’s – SHRED.     

The Snapshot:  Mixed rain and snow today, dry through the weekend.  

The Science:  A system sliding down the BC coast will bring a period of mixed rain and snow to the Pass today.  Hopefully, it will be mostly snow with cooler air arriving from the north.  A weak PS Convergence Zone could squeeze a few inches of snow out of this system tonight.  A large cold dry airmass sinking into the intermountain west (Montana) will also influence the weather at Stevens Pass over the weekend.   Clear and cold east/offshore flow will drop temperatures into the low teens by Sunday morning.  

Long Range:  Next week will start off cold and dry with a chance of snow by the end of the week.

Precipitation ending at 4am: Today’s 24hr Water = .5   Snow =  2-5 Tomorrow’s 24hr Water = <.25  Snow =  1-2 Trend and Timing: Mixed rain and snow in the base area with mostly snow on the upper mountain will begin today and continue through the night.  Precipitation tapers off tomorrow by noon or so.

24hr temperature ending at 4am tomorrow:  Low:28   High: 36 Freezing level: +-4500.’ Trends and Timing: Freezing levels will hover around 4500’ today and then begin to slowly fall through the night.

24hr Winds (mph) ending at 4am tomorrow: Base: 0-5 WNW Ridge Top:  5-10 WNW Trend and Timing: WNW flow will continue through Friday.  East flow develops and strengthens over the weekend.

JM