National Weather Service United States Department of Commerce

Hazardous Weather Impacts on the East and West Coasts

A cold front will continue to progress eastward today and Friday across the Eastern Seaboard with showers and thunderstorms bringing isolated heavy rainfall, gusty to damaging winds, and a possible tornado. A series of Pacific storms will begin to push into the Pacific Northwest today with impacts from heavy rain and snow continuing through the middle of next week. 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. More model information for the winds around SeaTac can be found on the SeaTac Wind Page .





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Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP


033
FTUS46 KSEW 052055 AAB
TAFSEA
TAF AMD
KSEA 052055Z 0521/0624 19009KT P6SM FEW050
FM052300 20006KT P6SM SCT040 BKN100
FM060400 16005KT P6SM SCT120 BKN200
FM061200 15006KT P6SM -RA BKN100 OVC200
FM061600 14006KT P6SM -SHRA BKN035 OVC040
FM062200 16007KT P6SM -RA SCT012 OVC040=
 
 

291
FTUS46 KSEW 051741
TAFBFI
TAF
KBFI 051741Z 0518/0618 18007KT P6SM OVC012
FM052000 19007KT P6SM SCT025 BKN050
FM052300 17005KT P6SM SCT045 BKN200
FM060400 15005KT P6SM SCT100 BKN150
FM060900 15004KT P6SM OVC100
FM061300 14005KT P6SM -RA OVC050=
 
 
   

292
FTUS46 KSEW 051741
TAFPAE
TAF
KPAE 051741Z 0518/0618 17005KT P6SM BKN008 OVC025
FM051900 16007KT P6SM OVC015
FM052100 17010KT P6SM SCT025 BKN050
FM060000 16007KT P6SM BKN100
FM060600 14009KT P6SM OVC100
FM061400 14011KT P6SM -RA OVC035=