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A slow-moving storm system will spread the risk of flooding downpours westward along the central Gulf of Mexico coast into the weekend.
Areas from Mobile, Alabama, to Biloxi, Mississippi, and New Orleans will receive several inches of rain from repeating downpours and thunderstorms.
"A general 3-6 inches of rain will fall from southern Alabama to Louisiana and eastern Texas with local amounts exceeding 8 inches," according to AccuWeather Storm Warning Meteorologist Alex Avalos.
"Rainfall rates will be high enough to cause flooding in low-lying areas, along small streams, bayous and perhaps some of the rivers," according to AccuWeather Meteorologist Becky Elliott.
In some cases, a couple of inches of rain could fall in as many hours.
New Orleans has an extensive pumping system to handle heavy rainfall, but some of the other towns and cities along the central Gulf coast could take on water for a time.
Most of the large rivers, such as the Mississippi and Pearl, will handle the rainfall with no trouble.
Motorists should prepare for excess water on area highways, including Interstate 10, I-20, I-55 and I-65. Slowing down during heavy rain will reduce the risk of hydroplaning.
The storm has already battered Louisiana with heavy rain Thursday night into Friday morning with some areas receiving in excess of 8 inches of rain. The extreme rainfall has closed countless roads in the state and some water rescues have occurred.
Even though the structure of the storm is vastly different when compared to a tropical system, the result will continue to be nearly the same as a slow-moving tropical depression or tropical storm along the Gulf coast in terms of rainfall.
People wanting to spend time at the beach will have to make alternative plans.
During the weekend, the storm system and the core of the heavy rain will begin to move north and west toward the Ohio Valley and southern Plains with the risk of flash flooding.
Content contributed by Andy Mussoline, AccuWeather Senior Meteorologist
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