National Weather Service United States Department of Commerce

Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. 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


286
FTUS46 KSEW 260302 AAA
TAFSEA
TAF AMD
KSEA 260302Z 2603/2706 35010KT P6SM FEW050 BKN250
FM260400 34006KT P6SM SCT250
FM261200 19004KT P6SM FEW150 FEW250
FM261800 26008KT P6SM SCT250
FM262100 22008KT P6SM SCT250=
 
 

747
FTUS46 KSEW 260355 AAA
TAFBFI
TAF AMD
KBFI 260355Z 2604/2624 32006KT P6SM SCT250
FM261200 18004KT P6SM FEW150 FEW250
FM261800 25008KT P6SM SCT250=
 
 
   

071
FTUS46 KSEW 260356 AAA
TAFPAE
TAF AMD
KPAE 260356Z 2604/2624 34006KT P6SM SCT250
FM260800 VRB04KT P6SM SCT250
FM261200 18004KT P6SM FEW250
FM261800 24008KT P6SM SCT250=