Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through 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 .


Hover over or click station to get METAR and TAF (if available)	Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP
688 FTUS46 KSEW 180256 AAA TAFSEA TAF AMD KSEA 180256Z 1803/1906 29006KT P6SM FEW050 BKN200 FM180400 02006KT P6SM BKN200 FM180900 03004KT P6SM BKN150 FM181900 28007KT P6SM BKN200=
142 FTUS46 KSEW 172324 TAFBFI TAF KBFI 172324Z 1800/1824 31006KT P6SM FEW050 BKN200 FM180400 VRB02KT P6SM BKN200 FM181800 31005KT P6SM BKN200=

297 FTUS46 KSEW 172324 TAFPAE TAF KPAE 172324Z 1800/1824 32006KT P6SM BKN200 FM180300 VRB02KT P6SM BKN200 FM182100 VRB05KT P6SM BKN250=

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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Puget Sound Convergence Zone