National Weather Service United States Department of Commerce

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. 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


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FTUS46 KSEW 182339
TAFSEA
TAF
KSEA 182339Z 1900/2006 36008KT P6SM BKN200
FM190600 05005KT P6SM OVC200
FM191300 VRB03KT 6SM BR BCFG SCT120 OVC200
FM191800 26005KT P6SM BKN200
FM192300 33006KT P6SM SCT200
FM200500 03007KT P6SM SCT200=
 
 

305
FTUS46 KSEW 182339
TAFBFI
TAF
KBFI 182339Z 1900/1924 33007KT P6SM BKN200
FM190600 VRB03KT P6SM OVC200
FM191300 VRB02KT 6SM BR BCFG SCT120 OVC200
FM191700 VRB04KT P6SM BKN200
FM192200 30005KT P6SM SCT200=
 
 
   

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FTUS46 KSEW 182339
TAFPAE
TAF
KPAE 182339Z 1900/1924 35008KT P6SM BKN200
FM190400 36003KT P6SM BKN200
FM191200 VRB03KT 6SM BR BCFG SCT003 SCT120 OVC200
FM191800 20003KT P6SM BKN200
FM192200 30005KT P6SM SCT200=