National Weather Service United States Department of Commerce

Heavy Rainfall Continues from the Southwest to the Plains; Severe Thunderstorms in the Southern Plains

Pacific tropical moisture wrapping into a storm will continue a multi-day heavy rainfall event this week that will impact the Southwest into the Plains. Scattered severe thunderstorms capable of mainly severe wind gusts appear possible across portions of the southern Plains this afternoon into tonight. There is also a risk of isolated severe winds gusts and tornadoes in Kansas into Nebraska. 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


829
FTUS46 KSEW 301738
TAFSEA
TAF
KSEA 301738Z 3018/0124 36005KT P6SM BKN015 BKN140
FM301900 33008KT P6SM SCT015 BKN200
FM010600 01005KT P6SM BKN100 OVC200
FM011100 04003KT P6SM FEW015 OVC150
FM011700 36004KT P6SM FEW030 OVC100
FM012000 35005KT P6SM BKN100=
 
 

830
FTUS46 KSEW 301738
TAFBFI
TAF
KBFI 301738Z 3018/0118 32003KT P6SM BKN017 BKN140
FM301900 32006KT P6SM SCT020 BKN200
FM010400 00000KT P6SM OVC100
FM011100 06003KT P6SM FEW020 OVC150
FM011700 35004KT P6SM FEW030 OVC100=
 
 
   

832
FTUS46 KSEW 301738
TAFPAE
TAF
KPAE 301738Z 3018/0118 36003KT P6SM BKN006
FM302000 33006KT P6SM SCT015 BKN200
FM010100 34003KT P6SM BKN250
FM010500 35004KT P6SM OVC100
FM011100 36003KT P6SM SCT008 BKN020 OVC100=