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Flash flooding biggest Acadiana concern as slow moving Beta heads to Texas

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Posted at 4:24 AM, Sep 20, 2020
and last updated 2020-09-20 14:10:42-04

There hasn't been much change overnight with Tropical Storm Beta as it is still slowly moving to the Texas coast, and already spreading showers across the area with rain bands moving across Acadiana early Sunday morning.

The storm is still battling back against some southwesterly shear which will limit intensification, so it look like intensity will hold around it's current level, and model continue to agree it'll push a little further inland than originally thought.

There are still Tropical Storm Warnings along a large stretch of the Gulf Coast, ranging from Morgan City all the way to the central Texas coastline.

The biggest threat from Beta is going to be the threat for flash flooding with several days of rain ahead of us and rain totals that will be between 8-12" and even up to 20" inches in isolated areas through Thursday.

Downpour will be likely which is when the flooding threat will be at it's highest as the ground won't have much chance to drain, so closely monitor road conditions through the week and never drive through flooded water.

The threat for flooding along the coast will be exacerbated by a surge of 1-3 feet over the Acadiana coastline and reaching as high as about 4 feet in southwest Louisiana.

Winds will remain gusty, particularly in the rain bands and down along the coast where tropical storm forced winds are anticipated through early Monday morning.

The general thinking and messaging has largely stayed the same over the last few day, we will need to watch for flooding through most of this week as it won't be an even distribution of rain, and the heavy downpours could lead to some issues.

Next full update out at 4:00 pm.

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