Time and Day: 1100 Monday
The Snapshot:
Light snow showers with sun breaks today
and tomorrow. Snow with a chance of
mixed rain will be possible starting Wednesday.
The Science
Current Observations: This morning’s radar has clear skies to the west with light scattered snow showers lurking around the mountains. There is 10” of fresh snow on the ground, it
is lightly snowing with the clouds beginning to thin, the temperature is 220
f, the Rh = 93%, the barometer is 1017mb and rising, the winds are 2mph
out of the east.
A high pressure ridge has
begun to form over the inland NW. This
will dry and stabilize the atmosphere for the next few days. The Stevens Pass
cloud cap will likely persist today with some sun breaks possible this
afternoon. Good radiant release will allow temperatures to cool off into the low
20’s or high teens again tonight. Tomorrow
will similar as today; cold with morning fog burning off through the day.
The Long Range: The next system arrives on
Wednesday with warmer temperatures and precipitation. The jury is still out on how much moisture
and whether or not the east flow will hold temperatures low enough for
snow. A split flow pattern is also a possibility
which could decrease precipitation totals.
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24hr Precipitation ending at 4 am:
Today 24hr water:.10 snow: trace
Tomorrow’s 24hr water: 0
snow: 0
Trend and Timing:
Light snow showers this morning, dry
this afternoon and all of tomorrow.
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24hr temperature
ending at 4 am:
Low: 18 High: 30
Freezing level: 1500 - 3000’
Trend and Timing:
Freezing levels west of the crest will
rise to around 3000’ today. Midday
surface temperature could reach 300f with good night time cooling.
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24hr Winds (mph) ending at 4 am:
Base: 0-5 E
Ridge Top: 0-10 ESE
Trend and Timing:
East/offshore winds will continue
today.
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jM
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