Enhanced Risk for Severe Thunderstorms Across the Upper Midwest; Flash Flooding Possible from the Upper Midwest to Southern Plains and Desert Southwest Through Friday

Portions of the Upper Midwest will see an increased threat for severe thunderstorms through this evening, with a few strong tornadoes possible. The same region remains on alert for additional flash flood concerns. Heavy rainfall may lead to flash flooding across the Desert Southwest today, and Southern Plains by Friday. Finally, Major-to-record river flooding continues across the Carolinas.
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Last Update: 328 PM EDT Thu Sep 20 2018

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Charleston, SC Local Forecast Office

19NM SSW R7 Navy Tower MR

Marine Zone Forecast


Synopsis: AMZ300-210715- 328 PM EDT Thu Sep 20 2018 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will prevail into early next week. A coastal trough of low pressure may impact the area by early to the middle of next week. A cold front may then approach from the northwest later in the week, and possibly stall over the area. $$

Tonight
E winds 15 kt, diminishing to 10 kt after midnight. Seas 2 to 3 ft.
Fri
E winds 10 kt, increasing to 15 kt in the afternoon. Seas 3 to 4 ft. A slight chance of tstms. A slight chance of showers.
Fri Night
E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 4 ft, subsiding to 3 ft after midnight. A slight chance of showers and tstms.
Sat
E winds 10 kt. Seas 3 ft. A slight chance of showers and tstms.
Sat Night
E winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.
Sun
E winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.
Sun Night
SE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers and tstms.
Mon
SE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers and tstms.
Mon Night
SE winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers and tstms. mariners are reminded that winds and seas higher in and near tstms.

Mariners are reminded that winds and seas higher in and near tstms.
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Last Update: 328 PM EDT Thu Sep 20 2018
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