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
498 FTUS46 KSEW 021722 TAFSEA TAF KSEA 021722Z 0218/0324 19004KT P6SM BKN018 BKN040 TEMPO 0219/0221 SCT020 BKN040 FM022100 27008KT P6SM BKN050 FM022300 33011KT P6SM SCT050 SCT200 FM030200 36009KT P6SM SCT200 FM030600 03006KT P6SM SKC FM031800 36009KT P6SM SKC=
435 FTUS46 KSEW 021722 TAFBFI TAF KBFI 021722Z 0218/0318 VRB04KT P6SM BKN022 BKN045 TEMPO 0218/0220 SCT025 BKN045 FM022000 29006KT P6SM BKN050 FM022200 31007KT P6SM SCT050 SCT200 FM030500 00000KT P6SM SKC=

436 FTUS46 KSEW 021722 TAFPAE TAF KPAE 021722Z 0218/0318 VRB04KT P6SM VCSH SCT017 BKN035 FM022100 33005KT P6SM BKN045 FM030100 34006KT P6SM SCT050 SCT200 FM030600 36005KT P6SM SKC=