Time and Day:
0700 Thursday
The Snapshot:
Mostly clear weather with good daytime
warming will finish out the week. The
weekend will be the same with a chance of an occasional passing shower or
two.
The Science
Current Observations:
It is partly cloudy this
morning with a temperature profile of 23 base / 21 ridges. The upper-level winds
just switched from westerly to easterly and are light. The barometer is holding steady at 1007mb’s. The radar has mostly clear skies over the
mountains with a band of moisture just offshore.
The Forecast: The band of
moisture just offshore is the last of the effect of the low-pressure system
tracking south into the California waters. The barometric pressure will remain low as the
upper-level low drifts south. There is
little moisture making it to the mountains, hence the dry forecast for Stevens
Pass. Temperatures will be seasonally
normal with a diurnal melt-freeze cycle beginning.
Weather geek speak:
Diurnal cycle; a pattern that occurs daily.
The Long Range: Long rang models disagree of what will
happen after the weekend. It is likely
that this mostly dry weather pattern will persist through the middle of next
week.
24hr values daily 4am to 4am.
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Precipitation:
Today 24hr
water: .< 10 snow:
0
Tomorrow’s 24hr
water: <. 10 snow: trace
Trend and Timing:
Mostly dry today with a flurry or two
possible.
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Temperature:
Low: 24 High: 36
Freezing level: 3500 -4500’
Trend and Timing:
Daytime temperatures will recover into
the mid to upper 30’s today.
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Winds
Base: 0-5 E
Ridge Top: 0-10 E
Trend and Timing:
Weak east flow will develop today.
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