Widespread Damaging Winds Likely in the Northern Plains; Heat Continues in the Central and Southeast U.S.

Severe thunderstorms, heavy rainfall, and flooding are possible from the northern Rockies into the Upper Midwest. A derecho is likely across portions of the northern Plains, with several gusts expected to exceed 75 mph. Extreme heat is expected to intensify across much of the Southeast and Tennessee Valley, continuing through much of this week. 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.


Hover over or click station to get METAR and TAF (if available)	Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP
702 FTUS46 KSEW 291720 TAFSEA TAF KSEA 291720Z 2918/3024 02006KT P6SM SKC FM300300 34009KT P6SM SKC FM300900 36005KT P6SM FEW250 FM302100 34009KT P6SM FEW250=
798 FTUS46 KSEW 291720 TAFBFI TAF KBFI 291720Z 2918/3018 01005KT P6SM SKC FM300300 31008KT P6SM SKC FM300900 00000KT P6SM FEW250 FM301700 32006KT P6SM FEW250=

942 FTUS46 KSEW 291720 TAFPAE TAF KPAE 291720Z 2918/3018 01006KT P6SM SKC FM300100 34007KT P6SM SKC FM301000 01003KT P6SM FEW250 FM301700 34007KT P6SM FEW250=

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Widespread Damaging Winds Likely in the Northern Plains; Heat Continues in the Central and Southeast U.S.

Puget Sound Convergence Zone