Time and Day: 0730 Sunday
The Snapshot: Mostly sunny today and tomorrow with easterly
flow providing cool temperatures and pass level fog below the ridgetops.
Current Observations: Temperatures
are in the teens across the mountain, with fog in the base area and just a
trace of new snow overnight. RH is at 93% and the barometer is steady over the
past 12 hours.
The Science: A high pressure ridge will
amplify over the Pacific Northwest today, bringing rising freezing levels and
mild weather. There is an offshore pressure gradient promoting easterly flow
thru the passes, so Stevens will see the usual inversion scenario with
intermittent fog in the base area.
The Long Range: Conditions remain similar for Tuesday and most of
Wednesday, with models diverging on the exact track of a weak system Wednesday
night.
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24hr Precipitation ending at 4am:
Today 24hr water: 0 Snow:
0
Tomorrow’s 24hr water: 0 Snow: 0
Trend and Timing:
No precip expected for a few days.
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24hr temperature
ending at 4am:
Low: 15 High: 25
Free Air Freezing Level: 3,000 – 7,000’
Trend and Timing:
While upper air temps will be warmer
above Pass level, Stevens should remain below the inversion line Sunday.
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24hr Winds (mph) ending at 4am:
Base: E 5-10
Ridge Top: E 10-15
Trend and Timing:
Light easterly winds will continue all
day Sunday.
DV
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