National Weather Service United States Department of Commerce

Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. 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


164
FTUS46 KSEW 312320
TAFSEA
TAF
KSEA 312320Z 0100/0206 VRB05KT P6SM OVC200
FM010200 17005KT P6SM OVC200
FM011100 15006KT P6SM -RA OVC050
FM011700 13008KT P6SM -RA SCT025 OVC040
FM012300 19009KT P6SM -SHRA OVC035=
 
 

168
FTUS46 KSEW 312320
TAFBFI
TAF
KBFI 312320Z 0100/0124 29005KT P6SM BKN200
FM010300 15003KT P6SM BKN120
FM011100 15006KT P6SM -RA SCT030 OVC050=
 
 
   

175
FTUS46 KSEW 312320
TAFPAE
TAF
KPAE 312320Z 0100/0124 36005KT P6SM BKN250
FM010200 17006KT P6SM BKN250
FM011200 15010KT P6SM -RA OVC030
FM011500 17012G20KT P6SM -RA OVC040
FM012100 15010KT P6SM -RA OVC040=