National Weather Service United States Department of Commerce

Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. 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


267
FTUS46 KSEW 182105 AAA
TAFSEA
TAF AMD
KSEA 182105Z 1821/1924 36010KT P6SM SCT200
FM190200 02007KT P6SM BKN200
FM190900 05004KT P6SM OVC200
FM191300 VRB03KT 6SM BR BCFG SCT120 OVC200
FM191800 26005KT P6SM BKN200
FM192300 33006KT P6SM SCT200=
 
 

067
FTUS46 KSEW 181726
TAFBFI
TAF
KBFI 181726Z 1818/1918 33005KT P6SM SCT200
FM190200 34005KT P6SM BKN200
FM190600 VRB03KT P6SM OVC200
FM191300 VRB02KT 6SM BR BCFG SCT120 OVC200
FM191700 VRB03KT P6SM BKN200=
 
 
   

069
FTUS46 KSEW 181726
TAFPAE
TAF
KPAE 181726Z 1818/1918 35005KT P6SM SCT200
FM190200 33003KT P6SM BKN200
FM191200 VRB03KT 6SM BR BCFG SCT003 SCT120 OVC200=