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
261 FTUS46 KSEW 211356 AAA TAFSEA TAF AMD KSEA 211356Z 2114/2218 12010G16KT P6SM VCSH BKN150 FM211600 12010G18KT P6SM -RA OVC040 FM212100 18012G20KT P6SM -SHRA OVC030 FM220400 16006KT P6SM OVC040 FM221200 13006KT P6SM -SHRA BKN050=
808 FTUS46 KSEW 211359 AAA TAFBFI TAF AMD KBFI 211359Z 2114/2212 VRB03KT P6SM VCSH BKN150 FM211600 13006G14KT P6SM -RA OVC040 FM212100 17010G17KT P6SM -SHRA OVC030 FM220400 14006KT P6SM OVC040=

104 FTUS46 KSEW 211120 TAFPAE TAF KPAE 211120Z 2112/2212 08006KT P6SM SCT080 BKN150 FM211600 15010G18KT 6SM -RA BR OVC035 FM212200 18014G24KT P6SM -SHRA OVC030 FM220200 15008G15KT P6SM BKN050=