National Weather Service United States Department of Commerce

Wet and Cool in the East this Memorial Day Weekend; Well Above Normal Temperatures in the Northern Plains

A wet Memorial Day weekend is in store for the East, with widespread rainfall of 1 to more than 2 inches expected from the Gulf Coast to southern New England. Well above normal temperatures are forecast to build across the northern Plains. Another round of heavy to excessive rainfall is expected to impact the western Gulf Coast this weekend with Flood Watches in effect. 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


575
FTUS46 KSEW 221509 AAA
TAFSEA
TAF AMD
KSEA 221509Z 2215/2318 31004KT P6SM FEW250
FM221800 32008KT P6SM SCT250
FM230300 01005KT P6SM FEW250
FM231000 23005KT P6SM FEW020 SCT250
FM231300 21005KT P6SM BKN018=
 
 

194
FTUS46 KSEW 221125
TAFBFI
TAF
KBFI 221125Z 2212/2312 VRB03KT P6SM FEW250
FM221800 30006KT P6SM SCT250
FM230300 VRB03KT P6SM FEW250
FM231000 19003KT P6SM FEW025 SCT250=
 
 
   

190
FTUS46 KSEW 221125
TAFPAE
TAF
KPAE 221125Z 2212/2312 03004KT P6SM FEW250
FM221400 35005KT P6SM FEW007 BKN035
FM221800 33005KT P6SM FEW250
FM231000 VRB03KT P6SM SCT020=