Severe Tropical Storm Watch | Effective 07/21/2026 08:16

Headline: 
Tropical Storm Watch issued July 21 at 10:16AM CDT by NWS New Orleans LA
Event: 
Tropical Storm Watch
Urgency: 
Future
Effective: 
July 21, 2026 - 8:16am
Expires: 
July 21, 2026 - 10:30pm
Description: 
* WHAT...Southwest winds 25 to 35 kt with gusts up to 50 kt and waves 3 to 6 feet over protected waters and seas 6 to 11 feet over open waters. * WHERE...Portions of the Gulf south and west of Port Fourchon including Terrebonne Bay. * WHEN...Tropical Storm force winds possible from early Wednesday morning until early Thursday morning. * IMPACTS...Tropical storm force winds and hazardous seas could capsize or damage vessels and reduce visibility.
Instruction: 
Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas.
Area Description: 
Lake Maurepas; Lake Pontchartrain; Lake Salvador and Lake Cataouatche; Terrebonne Bay; Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM
Forcast Office: 
NWS New Orleans LA