0630 Friday:
The Snapshot: Unfortunately, there are not many changes to yesterday's
forecast. Light snow and rain shower
today, snow changing to rain tomorrow. Watch
for more possible freezing rain as well.
Another similar event starts on Monday.
The Science: A large
low pressure system off the NW coast will continue to spin mixed snow and rain showers
into the mountains today. A stronger
warm front approaches from the south tomorrow; this will bring some snow at
first then change to rain once the front moves east of the crest. The winds will shift to westerly, and temperatures
will rise above freezing tomorrow afternoon. A weak upper-level
ridge passes over on Sunday for a dry and partly clear day.
4-7day Long Range: Hit repeat on
Monday with another wet and warm series of storms tracking through the PNW from
the south. This pattern will persist
through the middle of next week. Long
term forecast models do have the northern jet stream shifting north by the end
of next week. Hopefully, this will be
the shift we are all hoping for.
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24hr precipitation ending at 4am
tomorrow:
Water = .25 Snow = 1-3
Trend and Timing:
Light snow and rain showers today. A juicier system is expected to bring snow
then rain tomorrow morning.
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24hr temperature ending at 4am tomorrow:
Low: 24 High:
32
Freezing level: 4000’
Freezing Level Trends and Timing
Freezing levels will rise to 4000’ by early
tomorrow morning then bounce between 4000’ and 5000’ for the remainder of the
weekend. Persistent east flow will help
hold surface temperatures near freezing.
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24hr Winds (mph) ending at 4am tomorrow:
Base: 5-10 E
Ridge Top: 5-15
E
Trend and Timing:
East winds
will continue through early tomorrow morning. Winds shift westerly and
strengthen with the passing of the front around mid-day tomorrow.
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JM
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