National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Storm Surge of 2-4 feet are expected across coastal portions of Jefferson county, Cameron Vermilion Iberia, Lower St Martin and St Mary parishes. Storm surge of 1-3 feet are expected within Sabine Lake, Calcasieu Lake and Vermilion Bay. A Coastal Flood Warning has been issued for coastal portions of Jefferson county, Cameron Vermilion Iberia, Lower St Martin and St Mary parishes.
A Tropical Storm Warning is in effect from Sabine Pass Texas to Morgan City Louisiana. A Tropical Storm Watch is in effect for coastal southeast Texas west of Sabine Pass. The Potential Tropical Cyclone will have the chance to become a minimal tropical storm as it moves toward and inland the southwest Louisiana coast on Wednesday and Wednesday evening.
A Tropical Storm Warning is in effect for Cameron and coastal Vermilion, Iberia, and St. Mary Parishes as well as all lakes, bays, and Gulf waters. A Tropical Storm Watch remains in effect for lower Jefferson County.
Multiple rounds of heavy rainfall are expected as a surge of deep tropical moisture associated with Potential Tropical Cyclone One moves into the area and interacts with a stalled frontal boundary.
A Coastal Flood Warning has been issued for all coastal areas of southeast Texas and Louisiana east to Morgan City. A Coastal Flood Advisory is also in effect for areas around Sabine and Calcasieu Lakes. Water levels of 2 to 4 feet above MHHW are possible in the Warning area, with levels 1 to 1.5 feet possible in the Advisory area.
Storm Surge of 2-4 feet are expected across coastal portions of Jefferson County, Cameron, Vermilion, Iberia, and St Mary parishes. Storm surge of 1-3 feet is expected within Sabine Lake, Calcasieu Lake and Vermilion Bay.
Here are the rainfall amounts this week. Forecast totals will average between 1 and 4 inches the reasonably highest amounts between 3 and 8 inches.

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Hourly Weather Roundup ( )
Location Sky/Weather Temp Dewpt RH Wind Baro Remarks
Lake Charles
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Abbeville
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Alexandria
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Beaumont
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De Quincy
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De Ridder
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Fort Polk
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Jasper
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Jennings
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Lafayette
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Nederland/Port Arthur
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New Iberia
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Oakdale
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Opelousas
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Orange
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Patterson
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Pineville
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Sulphur/Carlyss
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"N/A" or "MISG" will be displayed if values are not available. In the LOCATION column, click on links for a list of recent observations at sites of interest. In the WIND column, VRB is "variable" and G is "gust". Wind speeds are in MPH. In the BARO (pressure) column, values are in inches. In the REMARKS column, HX is "heat index", WCI is "wind chill index", and VSB is "visibility" (if shown).
 

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