Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

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
840 FTUS46 KSEW 201446 AAA TAFSEA TAF AMD KSEA 201446Z 2015/2118 35006KT P6SM SKC FM202300 34010KT P6SM SKC FM210500 36005KT P6SM SKC=
903 FTUS46 KSEW 201131 TAFBFI TAF KBFI 201131Z 2012/2112 VRB03KT P6SM SKC FM202100 32006KT P6SM SKC FM210500 VRB03KT P6SM SKC=

905 FTUS46 KSEW 201131 TAFPAE TAF KPAE 201131Z 2012/2112 35006KT P6SM SKC FM202200 35010KT P6SM SKC FM210500 35006KT P6SM SKC=

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Areas of Severe Thunderstorms and Heat

Puget Sound Convergence Zone