Time and Day: 1000
Thursday
The Snapshot:
Heavy snow today with a chance of mixed
rain late this afternoon. Windy tonight
with heavy precipitation continuing.
The Science
Current Observations: It is snowing heavily with the temperatures in the mid
to upper 20’s. 7” of snow has fallen since midnight with rapid accumulation. The barometer is at 1009mb’s and dropping. The winds are light and out of the east.
The Forecast: The anticipated winter storm is underway. The apex of the triple point system is still offshore
with the leading warm front now moving into the southern boundary of the state.
As the warm front lifts north freezing levels will rise along
with the heavy precipitation. Expect
rain to mix with the heavy snow below 4500’ starting around 4 pm today and lasting through the night. Cooler
air associated with the trailing cold front will hopefully hold freezing levels
at or just below Pass level starting late tonight
and lasting through tomorrow.
The Long Range: Moderate precipitation with freezing levels
near 4000’ will continue into early Saturday morning. Things begin to dry out over the weekend.
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24hr Precipitation ending at 4 a.m:
Today 24hr water: 1-2 snow: 12-20
Tomorrow’s 24hr water:.75
snow: 6-8
Trend and Timing:
Heavy snow today with a chance of a
rain mixture after 4 pm today. The precipitation will continue through the
night.
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24hr temperature
ending at 4 a.m:
Low: 30 High: 34
Freezing level: 3500’- 4500’ – 4000’
Trend and Timing:
The freezing levels are expected to
rise to 4500’ this afternoon (+-2pm).
Freezing levels will then drop to 4000’ and stick around that
elevation for the next few days.
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24hr Winds (mph) ending at 4 a.m:
Base: 0-5 E shifting W
Ridge Top: 0-10 E shifting W 20+mph
Trend and Timing:
East flow will shift westerly with the
passing of the front this afternoon.
Expect strong westerly wind tonight
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jM
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