National Weather Service United States Department of Commerce

Severe Thunderstorms and Heavy Rain in the Mississippi Valley; Fire Weather Concerns in the Southern High Plains

Severe thunderstorms and the threat for excessive rainfall will move into the mid-Mississippi and lower Ohio Valleys today. There is potential for a few strong tornadoes, damaging wind gusts, large hail, and scattered flash flooding. Low humidity and windy conditions will continue to produce elevated to critical fire weather conditions across the southern High Plains into 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 .





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Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP


021
FTUS46 KSEW 272320
TAFSEA
TAF
KSEA 272320Z 2800/2906 20011G18KT P6SM BKN035 OVC040
FM281000 20007KT P6SM SCT025 OVC035
FM281200 20007KT P6SM BKN018 OVC025
FM282200 21007KT P6SM BKN035 OVC040
FM290000 26004KT P6SM SCT035 OVC050
FM290200 01004KT P6SM SCT020 BKN070=
 
 

028
FTUS46 KSEW 272320
TAFBFI
TAF
KBFI 272320Z 2800/2824 21010G18KT P6SM BKN035 OVC050
FM281000 17006KT P6SM SCT028 OVC035
FM281400 17007KT P6SM OVC027
FM282100 20006KT P6SM BKN035 OVC040=
 
 
   

120
FTUS46 KSEW 272320
TAFPAE
TAF
KPAE 272320Z 2800/2824 21010KT P6SM SCT030 OVC040
FM280100 19006KT P6SM BKN050
FM280800 16007KT P6SM OVC035
FM281200 15008KT P6SM BKN015 OVC027
FM281600 17007KT P6SM BKN012 OVC018
FM282200 23006KT P6SM SCT025 OVC035=