The
Snapshot: 20” of new snow with a few more inches expected
today, a great start. More snowy, blustery
weather, with mixed rain at times will continue through tomorrow.
The
Science: The jet stream has pulled a nice stream of moisture
into the PNW. The convergence zone is expected to gradually shift north later today
which will direct the main bulk of moisture north toward Glacier Peak. The jet stream is shifting to a SW orientation during the next 24hrs, so expect
rising freezing levels tomorrow.
4-7day
Long Range: A strong warm front enters the region on Monday with
moderate to heavy rain expected below 5000’.
High pressure develops on Wednesday with dry and cooler weather expected
to end the week.
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24hr Accumulative Precipitation Totals Starting at Noon Today:
Water by 4am = .25-.5 Snow equivalent
= 2-4
Total inches of water by noon tomorrow
= .5
Total inches of snow by noon tomorrow
= 3-5
Trend and Timing:
Snow showers will continue to fall but
appear to become less frequent as the convergence zone shifts north. Light mixed rain and snow showers can be
anticipated below 4500' tomorrow.
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24hr Base Area Temperatures (F) Starting at Noon Today:
Low: 24 High: 34
Trend and Timing:
Freezing levels will rise above 4000'
tomorrow and possibly reach 5000’ by Monday.
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24hr Winds (mph)
Base: 5-10 W gusty
Ridge Top: 10-15 W
Trend and Timing:
Strong upper level winds will continue
along the upper mountain today and tonight.
Winds will shift SW and weaken tomorrow.
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