National Weather Service United States Department of Commerce

Heat Continues for the East and South-Central U.S.; Strong to Severe Storms Across the Mid-Atlantic and Northeast

The extremely dangerous heat wave continues across the East Coast and much of the South-Central U.S. today. Record high temperatures are expected for some areas especially across the Mid-Atlantic where extreme heat risk conditions reside. There is a Slight Risk (level 2 of 5) of severe thunderstorms today for the northern Mid-Atlantic into portions of southern New England. 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.





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


341
FTUS46 KSEW 171740
TAFSEA
TAF
KSEA 171740Z 1718/1824 21006KT P6SM BKN150
FM172000 25006KT P6SM FEW050 SCT150
FM180300 21006KT P6SM SKC
FM180900 21006KT P6SM OVC008
FM181700 21006KT P6SM OVC012
FM181900 24006KT P6SM FEW250=
 
 

340
FTUS46 KSEW 171740
TAFBFI
TAF
KBFI 171740Z 1718/1818 25005KT P6SM BKN150
FM180300 20006KT P6SM SKC
FM180900 28006KT P6SM OVC012
FM181700 20005KT P6SM SCT015=
 
 
   

154
FTUS46 KSEW 171740
TAFPAE
TAF
KPAE 171740Z 1718/1818 19006KT P6SM BKN150
FM172000 31006KT P6SM FEW050 SCT150
FM180600 19006KT P6SM SKC
FM181000 19006KT P6SM OVC006
FM181700 21006KT P6SM SCT010=