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
672 FTUS46 KSEW 260259 AAA TAFSEA TAF AMD KSEA 260259Z 2603/2706 22010KT P6SM SCT020 BKN050 FM261200 18004KT P6SM OVC020 FM261800 32007KT P6SM SCT045 FM262100 34010KT P6SM SKC FM270300 02011KT P6SM SKC=
705 FTUS46 KSEW 252323 TAFBFI TAF KBFI 252323Z 2600/2624 VRB06KT 5SM -SHRA BKN017 BKN022 FM260300 20006KT P6SM BKN050 FM261200 17004KT P6SM OVC025 FM261800 30007KT P6SM SCT045 FM262100 32008KT P6SM SKC=

707 FTUS46 KSEW 252323 TAFPAE TAF KPAE 252323Z 2600/2624 VRB04KT P6SM -SHRA SCT005 BKN035 OVC070 FM260400 15008KT P6SM BKN045 FM261100 16006KT P6SM BKN025 FM261800 29005KT P6SM SCT045 FM262100 33006KT P6SM SKC=