Special Marine Warning Issued for Lake Pontchartrain, Lake Maurepas, Lake Borgne
This alert is no longer in effect.
NOAA issued it on July 20, 2026, 4 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS New Orleans has issued a Special Marine Warning for waterspouts and wind gusts to 40 knots until 7:00 AM CDT on June 18.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Southeastern Louisiana
- Issued
- July 20, 2026
- Issuing authority
- NWS New Orleans LA
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 4 weeks ago; use the issuing agency's live warning service for current conditions in Southeastern Louisiana.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in New Orleans. The alert is effective from 5:30 AM CDT on June 18, 2026, until 7:00 AM CDT on June 18, 2026.
Affected Areas
The warning covers Lake Maurepas, Lake Pontchartrain, and Lake Borgne. Impacted locations include Madisonville, Orleans Marina, Mandeville, The Mid Point Of The Causeway Bridge, Eden Isle, Kenner, and Lacombe.
What You Should Do
Boaters should avoid waterspouts and never try to navigate near them. Make sure all on board are wearing life jackets. Seek shelter or move to safe harbor until hazardous weather passes. Strong winds will be dangerous for boaters or anyone near the water.
Expected Conditions
A severe thunderstorm capable of producing waterspouts was located near Orleans Marina, moving northeast at 35 knots. Hazards include waterspouts and wind gusts to 40 knots.
Timeline
The alert is in effect from 5:30 AM CDT until 7:00 AM CDT on June 18, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (994 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 20, 2026.
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Common questions about this NWS weather alert.