The Snapshot: Thickening clouds and light
snow developing tonight, snow tomorrow.
The Science: The jet stream will drag a bunch of moisture
and a warmer air mass over the PNW starting on Monday. The storm track is progressive with a
southwest orientation; therefore expect high winds, rain, freezing rain, heavy snow,
throughout the week. Storm details for
Monday will be dialed in tomorrow.
4-7day Long Range: The storms increase in energy and moisture throughout the week. Water equivalent numbers remain impressive
with 7” -10” possible by Friday. Freezing
levels will bounce between 4000’ and 5000’ as these fronts pass through.
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Precipitation:
Water by
4am =<.25 Snow = 1-2
24hr
total inches of water ending at noon tomorrow = .25
24hr
total inches of snow ending at noon tomorrow =1-3
Trend and Timing:
Light snow will reach Stevens after midnight tonight with light to
moderate snow showers persisting into tomorrow night.
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Base Temp and Freezing
levels:
Low: 7 High: 16
Freezing level: 1000’ 3000’
Trends and Timing
Freezing levels rise to 3000’ tomorrow afternoon and 4000’ by early
Monday morning. East flow will hold
surface temperature below freezing through Monday morning.
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Winds (mph)
Base: 5-15 E
Ridge Top: 10-20 E
Trend and Timing:
Steady east winds will continue today.
Wind begin to mellow out early tomorrow and slowly shift SW on
Monday.
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