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Flood Watch Issued for Capital Region with heavy rainfall on the way
The National Weather Service has issued a FLOOD WATCH for East Baton Rouge, West Baton Rouge, Ascension, Assumption, Iberville, East Feliciana, Livingston, Pointe Coupee, St. Helena, St. James, St. Mary, Tangipahoa, and West Feliciana Parishes as well as, Amite and Wilkinson Counties starting Tuesday evening and lasting through Thursday evening.
A FLOOD WATCH means conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Be on the lookout for threatening weather conditions and listen for later statements and possible warnings. For more on flooding safety, CLICK HERE.
Multiple rounds of heavy rain will begin on Tuesday evening. Three to five inches of rain are likely though Thursday night across the area, with up to 10" possible. Locally higher amounts are possible. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Scroll down for additional forecast information.
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The potential for multiple rounds of heavy rain will pose a flash flood threat today through Thursday night for all of southern Louisiana. A few strong to severe storms may develop as the first round of storms arrives this evening.
Today & Tonight: A warm front will lift north through the Capital Area this afternoon, bringing with it breezy conditions and a surge of Gulf moisture. The front will trigger scattered to numerous showers and thunderstorms. Rain coverage and intensity will increase after sunset as an organized complex of thunderstorms moves through. Just about everyone will see rain on Tuesday night. Rain rates will be intense at times, and thunderstorms could repeat over the same locations. As a result, flash flooding is a concern, with areas affected experiencing poor drainage flooding and rapid rises on smaller creeks and streams. The threat of severe weather is not off the table either, as some thunderstorms could cause gusty winds and isolated tornadoes.
Up Next: Tuesday night's storminess will set the stage what what happens thereafter. That means there are some unknowns in terms of exact timing and coverage on Wednesday. Regardless, leftover moisture and additional disturbances will keep rain chances elevated. The same goes for Thursday. Any extra rain would aggravate the flash flood risk further. All told, 3-6" of rain with locally higher amounts appears likely through the workweek. Most of that will fall through Thursday. Moisture will begin exiting around Mother’s Day Weekend. While a spotty shower cannot be ruled out, the upcoming weekend appears relatively drier.
River Flooding: The National Weather Service has issued a RIVER FLOOD WARNING for the Mississippi River at Red River Landing, Baton Rouge, and Donaldsonville as well as the Atchafalaya River at Morgan City. For the latest levels and forecasts, CLICK HERE.
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