MOUNTAIN WEATHER FORECAST

Time and Day:  1000 Friday

The Snapshot:  Partly sunny and mostly dry today with a few inches of snow possible tomorrow.   Sunday through most of next week will be dry and cold. 

The Science:  The barometer has clicked up a few notches which will start to thin the cloud cover and produce mostly dry weather for the remainder of the day.   A low-pressure system descending in from the BC interior will bring a few more inches of snow and colder temperatures to the Stevens Pass tomorrow afternoon and evening.   

The Long Range:   Sunday will mark the beginning of a prolonged dry and cold period.  A dome of high pressure currently building in the Gulf of Alaska will park itself along the PNW coast.  This will allow cold, dry arctic air to stream in the NE which will drop temperatures into the single digits or lower for the first part of the New Year.

Precipitation Ending at 4am: Today 24hr water = .10 Snow = 0-2 Tomorrow’s 24hr water =  .25 snow = 2-4 Trend and Timing: A few light snow showers may still show up today, but for the most part, the snow is complete.  Light snow begins tomorrow afternoon.

24hr temperature ending at 4 am tomorrow:  Low: 24    High: 16 Freezing level: 3000’ – 1500’ Trend and Timing:    Temperatures will slowly fall over the next 24-48hrs.  Freezing levels will reach sea-level on Sunday.

24hr Winds (mph) ending at 4 am tomorrow: Base: 0-5 W Ridge Top: 5-10 NNW  gusty Trend and Timing: Winds will shift northwest, then northeast over the next +-36hrs.

jM