Louisiana, Mississippi Severe Coastal Flood Warning | Effective 07/21/2026 08:12

Headline: 
Coastal Flood Warning issued July 21 at 10:12AM CDT until July 23 at 4:00AM CDT by NWS New Orleans LA
Event: 
Coastal Flood Warning
Urgency: 
Expected
Effective: 
July 21, 2026 - 8:12am
Expires: 
July 21, 2026 - 10:15pm
Description: 
* WHAT...Significant coastal flooding. * WHERE...In Louisiana, Lower St. Bernard, Southeast St. Tammany, Eastern Orleans and Lower Plaquemines Parishes. In Mississippi, Southern Hancock, Southern Harrison and Southern Jackson Counties. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur. * ADDITIONAL DETAILS...Inundation is expected to be 2-4 feet along the coast in the warned area.
Instruction: 
Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.
Area Description: 
Lower St. Bernard; Southeast St. Tammany; Eastern Orleans; Lower Plaquemines; Southern Hancock; Southern Harrison; Southern Jackson
Forcast Office: 
NWS New Orleans LA