Severe Thunderstorm Warning — St. Mary County, Louisiana
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
⛈️ Active: Severe Thunderstorm Warning
Severe Thunderstorm Warning issued August 21 at 8:51PM CDT until August 21 at 9:15PM CDT by NWS Lake Charles LA
At 851 PM CDT, severe thunderstorms were located along a line extending from near Cypremort Point to near Patterson, moving south at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Morgan City, Franklin, Patterson, Berwick, Bayou Vista, Cypremort Point, Burns Point, Ellerslie, Patterson Memorial Airport, Glencoe, Cote Blanche Island, Weeks Island, and Centerville.
Effective August 21, 2026 at 9:51 PM ET · Expires August 21, 2026 at 10:15 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Lake Charles LA
Expires
August 21, 2026 at 10:15 PM ET
Last Checked
29 minutes ago
What To Do
📋 Official NWS Guidance
For your protection move to an interior room on the lowest floor of a building.
Also In Effect For
This same Severe Thunderstorm Warning also covers:
Other Active Alerts in Louisiana
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Warning
Get Severe Thunderstorm Warning Alerts for St. Mary County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for St. Mary County, Louisiana?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Yes — this alert is active as of our last check (29 minutes ago). It's set to expire August 21, 2026 at 10:15 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for St. Mary County?
Download StormCast free on Google Play and set St. Mary County, Louisiana as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Severe Thunderstorm Warning is also in effect for Iberia County.