The Snapshot: A good start to a great powder day,
5+” since 4am this morning and dumping. Heavy snow with periodic rain events will be
the game through the week, a foot or more of snow is expected overnight with
several feet possible by week’s end.
The Science: The jet stream will direct a steady stream of moisture
with several fronts imbedded in it throughout the week. The first front hits this afternoon with high
winds and heavy precipitation. Freezing levels
rise to 4000’ this afternoon, but there should be plenty of cold air to remain
in snow through tomorrow. Strong
westerly convergence winds will enhance the orographic effect in the mountain
so expect periods of heavy snow through the night. The
next front arrives tomorrow night.
4-7day Long Range: This pattern of waves of moisture accompanied with spike in temperature will
continue through the week and likely into the holiday weekend. Yes – Presidents day. The mountains could receive several feet of
new snow by the end of the storm cycle.
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Precipitation:
Water by
4am = 1” Snow = 12-15”
24hr
total inches of water ending at noon tomorrow = +- 1
24hr
total inches of snow ending at noon tomorrow =+-15”
Trend and Timing:
Heavy snow will continue through the night. There will be a break in the precipitation tomorrow
with the next front arriving tomorrow night.
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Base Temp and Freezing
levels:
Low: 18 High: 32
Freezing level: 1000’ 4500’
Trends and Timing
Freezing levels will quickly rise this afternoon to 4000’ and then
gradually fall back to around 3500’ early tomorrow morning. Temperatures will then rise again with the approach
the next front tomorrow afternoon.
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Winds (mph)
Base: 10-20 W
Ridge Top: 15-40 W
Trend and Timing:
Wind will shift westerly and strengthen with the passing of the front
this afternoon. A high wind advisory
will be in effect tonight with winds tapering of tomorrow.
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