Time and Day: 0900 Saturday
The Snapshot: Light
snow ending Saturday morning, sunny and cold for Christmas Day.
The Science: A couple inches of low density snow fell overnight and
temperatures are in the low 20’s this morning. Washington state is under the
axis of an upper level trough which will drift east today. Light convergence
showers are squeezing a few snowflakes out of the sky this morning. Dry
northerly upper level flow and surface high pressure will fill in behind the
trough, making for clearing skies Saturday and a sunny day Sunday.
The Long Range: Strong westerly flow will take aim at Washington State starting Monday
afternoon. An embedded trough should deepen and cross the forecast area Monday
night and Tuesday. Freezing levels look to rise briefly Tuesday morning, but
should remain below Pass level. It’s too early for an accurate prediction, but
Monday night through Wednesday Stevens Pass should accumulate 24”+ of snow.
Currently Thursday looks like a break between systems, with another snow event
on the horizon for Friday.
|
Precipitation Ending at 4am:
Today 24hr water = LT .10 Snow
= 1-2”
Tomorrow’s 24hr water = 0 Snow = 0
Trend and Timing:
The last few snowflakes for Saturday
should be falling currently, no precipitation is indicated from mid-morning
Saturday through Monday morning.
|
|
|
|
24hr temperature
ending at 4 am tomorrow:
Low: 17 High:
22
Freezing level: 0-500’
Trend and Timing:
Temps and freezing level will remain
cool and low through Sunday night.
|
|
|
|
24hr Winds (mph) ending at 4 am tomorrow:
Base: W 0-5
Ridge Top: WNW 5-15
Trend and Timing:
Light winds through Sunday morning, turning
northerly at ridgetops.
DV
|
No comments:
Post a Comment