Puget Sound Convergence Zone

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
518 FTUS46 KSEW 100529 TAFSEA TAF KSEA 100529Z 1006/1112 15008KT 6SM -RA BR FEW007 BKN015 FM100800 21015G25KT 6SM -RA BR OVC015 FM101500 20020G33KT 4SM -RA BR SCT008 OVC012 FM102200 23015G28KT 3SM -SHRA BR BKN006 OVC013 FM110200 25010G18KT 5SM -SHRA BR BKN010 OVC015=
519 FTUS46 KSEW 100529 TAFBFI TAF KBFI 100529Z 1006/1106 14008KT 6SM -RA BR OVC020 FM100700 20018G28KT 4SM -RA BR OVC015 FM101500 21020G33KT 4SM -RA BR SCT008 OVC012 FM102200 23015G27KT 3SM -SHRA BR BKN006 OVC015=

526 FTUS46 KSEW 100529 TAFPAE TAF KPAE 100529Z 1006/1106 14015G20KT P6SM -RA BKN015 OVC025 FM100800 21020G30KT 4SM -RA BR OVC010 FM101300 21025G37KT 5SM -RA BR BKN010 OVC015 FM102300 22015G25KT 3SM BR VCSH OVC007=