Time and Day: 0730 Saturday
The Snapshot: Light
snow today, mostly dry and cloudy Sunday morning with another shot of light
snow Sunday afternoon.
The Science: The
healing began yesterday morning with 2” of cream cheese and a beautiful sunny
day. Light precipitation (snow) began again around 5am this morning in weak
southerly flow aloft. Easterly flow through the Pass and a generally cooler
mass of air should maintain snow levels below pass level through the next two
days. As a weak low pressure trough approaches Washington State, bands of
moisture will rotate around it bringing light snow showers over the next 48
hours to Stevens Pass.
A larger, deeper low
pressure trough should approach the PNW during the day Monday. Increasing SW
flow aloft will bring strengthening alpine winds and moderate snow Monday night
and Tuesday morning. Freezing levels should come right up to 4,000’ Monday
night, but with a little luck we should have a nice shot of snow by Tuesday
morning. Thankfully freezing rain is not in the equation this time. Look for snow
totals tomorrow.
The Long Range: Next week brings active weather with Washington under the influence of
a large scale trough. Cool temps and embedded west flow should bring a decent
snow event Tuesday and Wednesday. There’s a brief break in the action Wednesday
afternoon and more snow to finish the week.
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Precipitation Ending at 4am:
Today 24hr water = .25-.5 Snow = 3-5”
Tomorrow’s 24hr water = .25 Snow = 1-3”
Trend and Timing:
Light snow showers today, possibly
moderate for a couple hours Saturday afternoon. Tapering off overnight. Most
of Sunday looks dry with snow beginning again in the afternoon.
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24hr temperature
ending at 4 am tomorrow:
Low: 25 High:
30
Freezing level: 4,000-2,500
Trend and Timing:
Peak temperatures should be midday
Saturday, cooling Saturday afternoon.
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24hr Winds (mph) ending at 4 am tomorrow:
Base: E 5-10, then W 5-10
Ridge Top: Variable, then WSW 10-15
Trend and Timing:
Easterly winds should shift to westerly
Saturday afternoon and remain moderate.
DV
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