Time and Day: 0730 Sunday
The Snapshot: Light
snow showers today with a few sun break possible; snow to start the week with this parade of storms continuing well into the
weekend.
The Science: Temperatures have lowered, and the rain has turned to intermittent snow showers due
to the cold front that passed a few hours ago.
There will be a break in the weather today as a weak upper-level high-pressure ridge drifts over the
mountains. A low-pressure cell developing along the southern Washington border
will swing north tomorrow with measurable snow likely at Stevens Pass. Cool
westerly flow aloft will provide favorable temperatures and winds for some nice
snow accumulation tomorrow.
The Long Range: There will be another short dry spell Monday night and most of Tuesday with the
snow vs. rain game arriving Tuesday night. Storms with seasonally above average temperatures
will continue to move into the PNW through the upcoming weekend.
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Precipitation Ending at 4am:
Today 24hr water = .25-.5 Snow = 2-4
Tomorrow’s 24hr water = .5-.75 snow = 4-8
Trend and Timing:
Light snow showers today. The next wave of moisture is expected to reach the mountains early tomorrow morning
(+-4am). Heavy snow is expected to
fall through the morning with convergence showers persisting through the day.
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24hr temperature
ending at 4 am tomorrow:
Low: 26 High:
34
Freezing level: 4500’ - 3500.'
Trend and Timing:
Freezing levels will fall through the night to around 3500’ and remain
there through Tuesday evening.
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24hr Winds (mph) ending at 4 am tomorrow:
Base: 0-5 W
Ridge Top: 5-10 W gusty
Trend and Timing:
The winds have shifted westerly this
morning and are expected to remain in a westerly flow pattern through the
middle of next week.
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jM
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