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. More model information for the winds around SeaTac can be found on the SeaTac Wind Page .


Hover over or click station to get METAR and TAF (if available)	Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP
578 FTUS46 KSEW 061120 TAFSEA TAF KSEA 061120Z 0612/0718 03006KT P6SM SKC FM061800 33009KT P6SM FEW250 FM070500 33005KT P6SM FEW250 FM070900 25005KT P6SM FEW250 FM071200 22005KT P6SM FEW250=
590 FTUS46 KSEW 061120 TAFBFI TAF KBFI 061120Z 0612/0712 00000KT P6SM SKC FM061800 33008KT P6SM FEW250 FM070500 32004KT P6SM FEW250 FM070900 21003KT P6SM FEW250=

615 FTUS46 KSEW 061120 TAFPAE TAF KPAE 061120Z 0612/0712 36003KT P6SM SKC FM061500 33008KT P6SM FEW250 FM070500 33005KT P6SM FEW250 FM070900 23004KT P6SM FEW250=