With the new blanket of snow on the ground at the Pass, I guess it is time to jump into the season forecast game. More regular detailed forecast will begin next week.
Time and Day: 4:00 pm Friday
The Snapshot: Snow diminishing to light showers, a drying
trend begins tonight with some light rain and rising freezing levels starting tomorrow
afternoon. Warm and dry weather develops over the weekend with heavy rain
expected next week.
The Science: The snow was produced by our friend the Puget
Sound Convergence Zone which has ended. A large warm airmass will drift
east over the next few days with rising freezing levels and mostly dry
conditions developing. 8-10,000’ freezing levels can be expected on
Sunday with high temperatures in the 50’s on Monday. Most of the active
weather gets shoved north as the large high pressures system, currently, off of
the west coast, moves east and flattens.
The Long Range: A weak cold front moves in on Tuesday with
moderate rain likely. A warm SW fetch of moisture enters the scene on
Wednesday - as of now, this looks very wet. I guess the typical PNW fall
wet weather pattern has begun.
.
jM
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