Flash flood warnings from Gulf Coast to Ohio Valley

An empty car is submerged in a flooded area of the parking lot of The Boardwalk on Okaloosa Island in Fort Walton Beach, Fla. on Friday.   Uncredited / AP


By Ian Johnston, Staff Writer, NBC News

Flood and flash flood warning were issued Saturday for a vast area stretching from the Gulf Coast to the Ohio Valley.

The National Weather Service said thunderstorms and rain was expected to continue for the affected area for Saturday.

“Some of the showers and thunderstorms will be capable of producing heavy rain, continuing the threat of flash flooding,” it said.

“Accumulations of 1 to 3 inches will be possible with localized heavier amounts at times. Remember, Turn Around Don’t Drown,” it added.

Severe Weather Outbreak Through Thursday

After a brief respite, a dangerous severe weather outbreak is poised to strike parts of the Great Lakes, Ohio Valley and East through Wednesday and Thursday.

Wed./Wed. Night

Wednesday, severe thunderstorms will ignite along a strong warm front and low pressure system from eastern Iowa, northern/central Illinois and southern Wisconsin into Indiana, southern Lower Michigan and Ohio.  This could affect the Wednesday afternoon/evening commute in ChicagoMilwaukeeDetroit and possibly Cleveland.  Damaging winds, large hail, some tornadoes, and local flash flooding from brief heavy rainfall are all threats.

Wednesday night, a cluster of severe thunderstorms, possibly in the form of a squall line with damaging straight-line winds, will sweep through this region as far east as western Pennsylvania and northern West Virginia.  Cities in this late threat include Pittsburgh, CincinnatiColumbus, Ohio.

It’s possible, though by no means certain, that thunderstorms Wednesday night could congeal into a long-lived squall line called a “derecho” with a more widespread damaging wind threat in this region.

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