0700 Thursday:
The Snapshot: Rain today, snow tomorrow, dry over the
weekend.
The Science: The rain will continue today
under a moist unstable airmass. A strong
cold front sweeps through the state tomorrow, hopefully, leaving +-10” of snow on
the ground by early Saturday morning. Dry
cold arctic air flows in through the Frazer River Valley on Saturday; this will
bring sub-freezing temperatures to the North Cascades Mountains.
4-7day
Long Range: Saturday through early next week will be dry
and cold. Next week looks mostly dry
with warming towards the end.
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24hr precipitation ending at 4am
tomorrow:
Water = 1 Snow = 0
Trend and Timing:
Rain today changing to snow after 7am tomorrow.
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24hr temperature ending at 4am tomorrow:
Low: 36 High: 42
Freezing level: 6000’
5000’
Freezing Level Trends and Timing
Freezing levels drop below 4000’ by mid-morning
tomorrow.
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24hr Winds (mph) ending at 4am tomorrow:
Base: 5-15 WSW
Ridge Top: 10-20 WSW
Trend and Timing:
Gusty WSW winds today, diminishing tomorrow and
shifting N.
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