Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

A Puget Sound Convergence Zone (PSCZ) forms when strong westerly winds flow around the Olympic Peninsula and converge over Puget Sound. It generally forms north of Seattle, and may move southward to as far as Boeing Field or SeaTac Airport. A PSCZ can cause a narrow band of convective precipitation along it, which can include rain showers, thunderstorms, or snowfall. Strong south to southwest winds are to the south of the PSCZ and north to northwest winds to the north.


Hover over or click station to get METAR and TAF (if available)	Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP
352 FTUS46 KSEW 301120 TAFSEA TAF KSEA 301120Z 3012/3118 01007KT P6SM FEW005 BKN150 FM301800 03007KT P6SM BKN200 FM310400 08005KT P6SM SCT200 FM310900 11005KT P6SM FEW005 BKN150=
361 FTUS46 KSEW 301120 TAFBFI TAF KBFI 301120Z 3012/3112 VRB03KT P6SM FEW005 BKN150 FM301800 VRB03KT P6SM BKN150 FM310900 14005KT P6SM FEW005 BKN150=

381 FTUS46 KSEW 301120 TAFPAE TAF KPAE 301120Z 3012/3112 36005KT P6SM FEW005 BKN150 FM301800 VRB04KT P6SM BKN200=

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Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

Puget Sound Convergence Zone