National Weather Service United States Department of Commerce

Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. 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


554
FTUS46 KSEW 181546 AAB
TAFSEA
TAF AMD
KSEA 181546Z 1816/1918 VRB03KT P6SM BKN012 BKN080
FM181700 21004KT P6SM FEW040 BKN120
FM190000 30008KT P6SM BKN120
FM190400 33005KT P6SM BKN060
FM190700 23005KT P6SM OVC060
FM191100 19005KT P6SM OVC030=
 
 

264
FTUS46 KSEW 181556 AAA
TAFBFI
TAF AMD
KBFI 181556Z 1816/1912 17002KT P6SM BKN015 BKN200
FM181700 25003KT P6SM FEW040 BKN120
FM190000 30007KT P6SM BKN120
FM190400 34005KT P6SM BKN060
FM190700 23005KT P6SM OVC060
FM191100 19005KT P6SM OVC030=
 
 
   

580
FTUS46 KSEW 181137
TAFPAE
TAF
KPAE 181137Z 1812/1912 05006KT P6SM BKN070 BKN200
FM181700 35004KT P6SM SCT030 SCT060
FM182300 36008KT P6SM BKN120
FM190800 02004KT P6SM OVC050
FM191100 04005KT P6SM OVC025=