National Weather Service United States Department of Commerce

Extreme Heat and Severe Thunderstorms Today

Extreme heat continues today from the central Plains to the lower Mississippi River Valley, over southeast Montana, and from southern California into the Southwest Deserts. Extreme Heat Warnings remain in effect. Severe thunderstorms capable of strong to severe wind gusts and large hail are possible across the Great Lakes into the Ohio Valley today into tonight. 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 .





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Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP


727
FTUS46 KSEW 272320
TAFSEA
TAF
KSEA 272320Z 2800/2906 27008KT P6SM FEW050 SCT100 SCT200
FM280700 21006KT P6SM SCT050 BKN100
FM281200 19009KT P6SM BKN030 OVC040
TEMPO 2812/2816 BKN025
FM281700 22012G18KT P6SM SCT030 BKN040=
 
 

701
FTUS46 KSEW 272320
TAFBFI
TAF
KBFI 272320Z 2800/2824 22008KT P6SM FEW050 SCT100 SCT200
FM280700 18005KT P6SM SCT050 BKN100
FM281200 18008KT P6SM BKN030 OVC040
FM281700 18011G18KT P6SM OVC050=
 
 
   

714
FTUS46 KSEW 272320
TAFPAE
TAF
KPAE 272320Z 2800/2824 24008KT P6SM SCT050 BKN200
FM280200 32008KT P6SM FEW050 BKN200
FM280600 VRB04KT P6SM SCT050 BKN100
FM281200 17011KT P6SM BKN035 OVC050
TEMPO 2812/2816 BKN025
FM281600 18015G22KT P6SM OVC050
FM282100 22012G20KT P6SM OVC050=