Time and Day: 0630 Saturday
The Snapshot: Snow, with a chance of some light rain in the
mix today. Remnant snow showers with
drying tomorrow and Monday. Rain/snow
enters the scene during the middle of next week.
The Science: A low-pressure
cell tracking NE through the State today will bring another round of snow for
Stevens Pass. East-west pressure gradients will tighten this morning for some breezy
easterly winds; winds then shift westerly as the low passes east of the mountains.
An upper-level high-pressure ridge will
build behind the low tomorrow; this will produce a few days of dry weather with
cooler temperatures for the North-Central Cascades.
The Long Range: A strong warm front with saturated SW
flow is expected to bring mostly rain on Tuesday, Wednesday and possibly Thursday. Next weekend is trending cooler and
dry.
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Precipitation Ending at 4am:
Today 24hr water = .5-.75 Snow = 4-7
Tomorrow’s 24hr water = .25 snow = 2-4
Trend and Timing:
Mixed rain and snow (mostly snow) will
fall through mid-morning tomorrow. Snow tapers off tomorrow afternoon with
Monday trending dry.
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24hr temperature
ending at 4 am tomorrow:
Low: 26 High:
32
Freezing level: 4000’ – 3000.'
Trend and Timing:
Temperatures will linger around the
freezing mark today and then begin to fall tonight. East
flow will help keep surface temps low for snow.
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24hr Winds (mph) ending at 4 am tomorrow:
Base: 5-10 E gusty then shifting W
Ridge Top: 5-15 E gusty – shifting NW
Trend and Timing:
Easterly winds will strengthen today and
then shift WNW tonight.
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jM
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