Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-South to the Ohio Valley and the Southeast through tonight, moving into the Mid-Atlantic Monday. 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
861 FTUS46 KSEW 161506 AAA TAFSEA TAF AMD KSEA 161506Z 1615/1718 19010KT P6SM SCT030 BKN040 OVC050 FM161700 18009KT P6SM -RA OVC025 FM162000 21010KT P6SM OVC035 FM162300 21012KT P6SM OVC040 FM170400 19007KT P6SM VCSH OVC040=
862 FTUS46 KSEW 161506 AAA TAFBFI TAF AMD KBFI 161506Z 1615/1712 13005KT P6SM OVC050 FM161700 16010KT P6SM -RA OVC030 FM162000 17010KT P6SM OVC035 FM162300 20007KT P6SM OVC045 FM170400 18005KT P6SM VCSH OVC040=

517 FTUS46 KSEW 161120 TAFPAE TAF KPAE 161120Z 1612/1712 15006KT P6SM -RA OVC030 FM161500 16013KT P6SM -RA OVC020 FM161800 15013G23KT 2SM -RA BR OVC007 FM162100 16015G25KT P6SM OVC050 FM170100 08012KT P6SM OVC030=

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Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

Puget Sound Convergence Zone