Afternoon Weather Update - ABC 33/40 - Birmingham News, Weather, Sports

Intense storms causing flooding in Central Alabama

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A car stuck in flood waters on Five Mile Road in Birmingham. (abc3340.com) A car stuck in flood waters on Five Mile Road in Birmingham. (abc3340.com)

From the ABC 33/40 Weather Blog:

Update  3:15 p.m.

A warning has been issued as strong storms approach the Montgomery area from the northwest. Widespread flash flooding occurred yesterday and with intense rainfall about to move into the city, additional flooding is likely. The warning will impact downtown, the Capitol, Interstates 65 & 85, and Highways 31, 80, 82, 231 and 331.

Update 2:50 p.m. 

Intense storms continue to drop south through Alabama this afternoon. The worst of the weather is now south of Interstate 20, and the severe weather threat has dissipated for these areas. Flooding remains our major threat this afternoon. As the storms continue to push south, the severe weather risks will shift farther south.

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE SEVERE THUNDERSTORM
WATCH FOR THE FOLLOWING COUNTIES:

JEFFERSON, ST. CLAIR, GREENE, HALE, PICKENS, TUSCALOOSA

THIS INCLUDES THE CITIES OF…ALICEVILLE…BIRMINGHAM…
CARROLLTON…EUTAW…GREENSBORO…HOOVER…MOODY…MOUNDVILLE…
PELL CITY AND TUSCALOOSA.

THE SEVERE THUNDERSTORM WATCH REMAINS VALID UNTIL 10 PM CDT THIS
EVENING FOR THE FOLLOWING COUNTIES:

AUTAUGA BIBB CHILTON
COOSA DALLAS ELMORE
LOWNDES MONTGOMERY PERRY
SHELBY TALLADEGA
CHAMBERS CLAY LEE
MACON RANDOLPH RUSSELL
TALLAPOOSA
BARBOUR BULLOCK PIKE
MARENGO SUMTER

THIS INCLUDES THE CITIES OF…ALABASTER…ALEXANDER CITY…
ASHLAND…AUBURN…BRENT…CENTREVILLE…CLANTON…COLUMBIANA…
DEMOPOLIS…EUFAULA…FORT DEPOSIT…LANETT…LINDEN…
LINEVILLE…LIVINGSTON…LOWNDESBORO…MARION…MILLBROOK…
MONTGOMERY…OPELIKA…PELHAM…PHENIX CITY…PRATTVILLE…
ROANOKE…ROCKFORD…SELMA…SYLACAUGA…TALLADEGA…TROY…
TUSKEGEE…UNION SPRINGS…UNIONTOWN…VALLEY…
WETUMPKA AND YORK.

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Thunderstorms over West Central Alabama are intensifying as they move into more unstable air. Instability values are running 2500-3500 j/kg ahead of the line. This area did not have storms this morning so instability is very high. These storms have dropped south on Interstate 20/59 and will be impacting Highways 69, 25, 43 and 80. Demopolis, Greensboro, Newbern, Marion, Livingston and Linden will be impacted by these storms.

These storms are capable of producing winds of 60 mph or higher. This can bring down trees. There are some indications of small hail as well, especially north of Greensboro. Cloud tops are over 50,000 feet high in that area.

They are also producing copious amounts of lightning and torrential rains. One hour rainfall rates will exceed two inches per hour in the heavier downpours, which can produce flash flooding quickly.

Storms are forming ahead of the main squall line now over southern Talladega and Coosa Counties generally from Childersburg to Goodwater.

Others are forming ahead of the line in Marengo, Perry and moving into southwestern Chilton Counties.

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