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
904 FTUS46 KSEW 221120 TAFSEA TAF KSEA 221120Z 2212/2318 20009KT P6SM BKN015 FM221800 19006KT P6SM BKN050 FM222200 21006KT P6SM BKN090 FM230700 16006KT P6SM -RA OVC027 FM231400 16008KT 6SM -RA OVC019=
900 FTUS46 KSEW 221120 TAFBFI TAF KBFI 221120Z 2212/2312 17008KT P6SM OVC015 FM221800 18007KT P6SM BKN050 FM222200 19006KT P6SM BKN090 FM230700 15004KT P6SM -RA OVC025=

836 FTUS46 KSEW 221120 TAFPAE TAF KPAE 221120Z 2212/2312 29006KT P6SM VCSH BKN030 BKN050 FM221800 21005KT P6SM BKN050 FM222200 18009KT P6SM BKN090 FM230500 17010KT P6SM -RA OVC025 FM230900 13009KT 6SM -RA OVC015=