Time and Day: 0700 Thursday
The Snapshot: Dry with clearing.
The Science: The atmosphere will stabilize today under rising
pressure. Therefore, the PNW will move
into a dry and mostly clear weather pattern through the weekend. Cool east flow will keep surface temperatures
at or below 320f for the next few days. Morning fog will also be common at Pass
level.
Long
Range: A
weak cold front descends along the BC coast early next week with a chance of
some snow for the Cascade Mountains; this system is not particularly potent, so
no significant snow is expected at this time. Long range models also have cold arctic air
flowing out of the Frazer River Valley next week; this could drop surface
temperatures into the low teens or even single digits on Thanksgiving Day.
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Precipitation
ending at 4 am:
Today’s
24hr Water = .10 Snow = trace
Tomorrow’s 24hr Water = 0 Snow =
0
Trend and Timing:
The few light snow showers this morning will end
later today. Dry through the weekend.
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24hr temperature ending at 4 am tomorrow:
Low: 22 High:
28
Freezing level: +-3000’
Trends and Timing:
Surface temperatures will stabilize in the mid 20’s
through Saturday morning. Clear early
morning conditions could allow low temperatures to drop into the upper teens.
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24hr Winds (mph) ending at 4 am tomorrow:
Base: 0-5 E
Ridge Top:
Trend and Timing:
Winds have shifted easterly today and will
continue through tomorrow.
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JM
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