MOUNTAIN WEATHER FORECAST

Time and Day: 0830 Monday

The Snapshot:  Today will continue to be dry and warm with high clouds developing.  A spring snow event is scheduled for tomorrow.  Very typical spring weather will continue in the Cascade Mountains.

The Science:  The high pressure cell that blesses us with the recent sunny weather is flattening and drifting south.  This will open the door for westerly flow to push a few weak disturbances into the PNW.   A cold front will swing through tomorrow producing some light snow. Wednesday will be a dry interim day before a warm front brings rain to the mountains on Thursday.      

4-7day Long Range:  High pressure return on Friday for another warm and clear weekend.  

Precipitation: 16hr Water by 4am tomorrow  = .25   Snow = 1-3 24hr water by noon tomorrow = .25  Snow = 1-3 Trend and Timing: Light snow will begin to fall after midnight tonight and continue through tomorrow.  The atmosphere begins to dry out tomorrow night and Wednesday with light rain or snow showers possible.

Base Temp and Freezing levels:  Low: 30   High: 45 Freezing level: 7000’     4000’ Trends and Timing Freezing levels will remain high today.  Temperatures’ will quickly drop as the front moves through after midnight tonight.  Surface temperatures will hover near freezing tomorrow with a gradual warming trend starting on Wednesday.

Winds (mph) Base: 0-5 E shifting W Ridge Top: 5-10 ESE shifting W Trend and Timing:  Winds will shift west and strengthen as the front approaches.  A short-lived gusty wind event will be likely as the front passes east of the crest early tomorrow morning.