Time and Day: 0700
Wednesday
The Snapshot: It is clear and 120 for the first
morning of February. Sunshine, cool temperature and breezy winds
can be expected at Stevens Pass today. Moderate
to heavy snow can be anticipated for the weekend.
The Science: A cold, dry airmass from our neighbors to the
north has arrived. Strong offshore flow
will produce gusty easterly winds along the ridge tops, as well as down the
western slopes.
Clouds will
increase tomorrow in response the storm system tracking up the coast. Warm, moist air will drive up the western
side of the mountains while the cold air gets trapped in the eastern basin. We all know this game; inversion temperatures
with rain to the west and cold east flow producing snow at Stevens Pass. This is also a formula for freezing rain on
the roads.
The Long Range: Prepare
for a snowy weekend with a foot or more of snow possible throughout. Weekend storm totals will be dialed in
tomorrow. Active weather continues into
the first full week of February.
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Precipitation
Ending at 4am:
Today 24hr water = 0 Snow
= 0
Tomorrow’s 24hr water
= .10 snow = trace
Trend and Timing:
No precipitation
expected through most of tomorrow.
Some light snow showers will be possible late tomorrow night or early
Friday morning.
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24hr temperature ending at 4 am tomorrow:
Low: 12 High:
20
Freezing level: 500’
Trend and Timing:
Cold surface
temperatures will remain in place for the next 24-36hrs.
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24hr Winds (mph) ending at 4 am tomorrow:
Base: 0-10 E
Ridge Top: 10-20 E
Trend and Timing:
Pass level winds
should be fairly light with gusty ridge top and down slope winds increasing
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jM
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