Time: 0900
The
Snapshot: Light
rain and snow with sun breaks will continue today; heavy snow will begin tomorrow
afternoon and continue through Saturday morning.
The
Science: Today will be
pretty quiet with light precipitation lingering along the west slope of the
Cascades. Pressure gradients will begin
to increase as a storm tracking in from the north enters the scene tomorrow. Moderate to heavy snow will be likely tomorrow
afternoon and night. Storm totals by 10am
Saturday are between .75 -1.25” of water or 10-14” of snow. Convergence Zone development will help intensify
orographics for the Passes. A fast
moving cold front moves through early Saturday morning which will cut off the precipitation
and drop freezing levels to below 1000’ by Sunday.
4-7day
Long Range: Dry condition
with sun breaks will prevail from noon Saturday through early Tuesday. The jet stream shift south early next week
which will likely bring warmer temps and a chance of some precipitation for the
middle of the week.
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24hr Accumulative Precipitation Totals Starting at Noon Today:
Water by 4am = <. 25 Snow
equivalent = 0-2
Total inches of water by noon tomorrow
= .25
Total inches of snow by noon tomorrow
= 1-2
Trend and Timing:
Today’s precipitation will be confined
to the west slopes of the Cascades. Snow
will ramp up around midday tomorrow with heavy snow expected tomorrow night.
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24hr Base Area Temperatures (F) Starting at Noon Today:
Low: 26 High: 32
Trend and Timing:
Temperatures will hover around 32f
today. Freezing levels are expected to
fluctuate between 3000’ and 4000’ through this storm. Cold air will filter in from the north on
Saturday and Sunday with low temperatures in the teens likely.
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24hr Winds Speed (mph)/Direction Starting at Noon Today:
Base: 5-10 W strengthening
Ridge Top: 5-15 W
Trend and Timing:
Winds will begin to strengthen early tomorrow
morning with the arrival of the storm.
Strong westerly flow will accompany this system with gust above 40pmh
likely.
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