Stevens Pass Mountain Weather
Forecast
Tuesday, November 26, 2019, 0800
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Current
Observations:
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24hr Precipitation: .06” SWE, trace of snow
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Temperature profile: 17
base
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Pass level winds: Light, easterly
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Barometer: 1008mb’s falling slightly
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Sky: High clouds with patchy mid-level clouds
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Radar: Spotty snow showers in the
I-90 corridor with the main bulk of
moisture making landfall along
the Oregon coast.
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The Forecast: Cold and mostly dry
today with an occasional light snow shower possible. Windy tomorrow with clear periods and passing
snow showers. No significant snow
accumulation expected for the rest of the week.
Long Range: The next chance of snow will be
over the weekend with long range models showing some promise again next week.
The Science: Bands of moisture will spin north from the low
pressure system tracking into Oregon today.
The east slopes will see a few inches of snow with little of the
moisture making it to the crest.
Pressure gradients will tighten along the northern boundary of the low
creating strong east/offshore flow. Cold air will also be ushered in from NE
interior with low teens or even single digits possible.
The next storm of interest arrives over the
weekend. This system tracks up from the SW with rising freezing levels and snow
likely. Details on timing and precipitation
amounts are still very much in questions, so stay tuned.
Confidence: Good in short term, poor for
long range.
Values from
4am today through 4am tomorrow.
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Precipitation:
Today
24hr
water: .10
snow: 0-2
Tomorrow’s
24hr
water: .25
snow: 1-3
Trend and
Timing:
Light passing snow showers will continue through early Thursday
morning.
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Temperature:
Low: 10 High: 20
Freezing
level: 1500’-500’
Trend and
Timing:
Temperatures will remain low with freezing levels dipping below 500’
tonight.
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Winds
Base: 5-10 E
Ridge
Top: 5-15 E gust +30 possible
Trend and
Timing:
East flow will strengthen today with strong offshore flow winds
developing tonight.
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