Time and Day: 0600 Monday
The Snapshot: Enjoy
the sun today because the rest of the week will be rather soggy. Mostly
rain is expected to start tomorrow and last through Thursday. Terms such as an atmospheric river and pineapple
express are being used in other weather
reports around the PNW.
The Science: A high-pressure
ridge over the region will provide abundant sunshine this morning. Clouds roll in tonight as two strong warm and
moist frontal systems roll up the coast. The first round of rain will enter the
mountains tomorrow morning with freezing levels rising ahead of the front. There will be a break in the precipitation on
Wednesday with another round of rain on Thursday. Rain totals for the week could exceed 4”.
The Long Range: Cooler air with snow is
developing on Friday with spotty snow showers for the weekend.
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Precipitation Ending at 4am:
Today 24hr water = 0 Snow = 0
Tomorrow’s 24hr water = .5 snow = 0 -3
Trend and Timing:
The main event is timing out to reach
the Cascade Crest around midmorning tomorrow.
There could be a bit of snow tomorrow morning before it changes to
rain.
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24hr temperature
ending at 4 am tomorrow:
Low: 24 High: 36
Freezing level: 3500’ - 5500’
Trend and Timing:
Temperatures will rise above 340f
today with the aid of the sun. Freezing
levels will continue their ascent reaching 5000’ early tomorrow morning. Temperature are
expected to remain above freezing through Thursday.
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24hr Winds (mph) ending at 4 am tomorrow:
Base: 0-5 E
Ridge Top: 0-10 S
Trend and Timing:
Weak east flow at the surface with strong
southwest flow aloft will be the general wind pattern for the next few days.
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jM
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