0630 Thursday:
The Snapshot: Welcome to 2015. Today will start out sunny
with thickening clouds tonight. Snow
tomorrow night, dry Saturday, snow changing to rain on Sunday.
The Science: The east-west temperature battle will end today as warm
air advection from the SW raises freezing levels. The high pressure that has been parked off the
NW coast will weaken today; this will allow a system to track through the
region tomorrow for a little fresh snow.
The barometric pressure briefly rebounds on Saturday for a dry interim day.
4-7day
Long Range: The pattern changes on Sunday
as a strong warm front enters the area.
Heavy snow is forecasted for Sunday but is expected to turn to rain at
some point during the late afternoon/evening.
Rain continues into Monday.
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Precipitation ending at 4am:
Today’s 24hr Water
= 0 Snow = 0
Tomorrow’s 24hr Water= .25 Snow = 1-3
Trend and Timing:
Today will remain dry with light snow developing
tomorrow afternoon.
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24hr temperature ending at 4am tomorrow:
Low: 22 High:
30
Freezing level: 4000’
Trends and Timing:
Freezing levels will rise to +-4000’ today. Temperatures will briefly fall tomorrow
evening as a shot of cold air fills in behind the front.
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24hr Winds (mph) ending at 4am tomorrow:
Base: 0-5 E
Ridge Top: 5-15 W
Trend and Timing:
Light surface easterlies will slowly give way to
westerly flow overnight. Gusty
westerly winds can be expected along the ridge tops (5000’+) this afternoon.
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JM
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