This alert expired on 11 July 2026 at 20:01 UTC. It is kept here as a record.
It is the 6th strongest of the 109 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 11 at 2:51PM CDT until July 11 at 3:00PM CDT by NWS New Orleans LA
An estimated 916,872 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 9, 2026 · score 48 · 0.9 km
- June 24, 2026 · score 48 · 2.7 km
- June 24, 2026 · score 48 · 3.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 80% |
| Coordinates | 30.2100, -90.1576 |
| Nearest City | Metairie Terrace (26 km) |
| Population Exposed | 916.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-11T19:51:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Maurepas; Lake Pontchartrain |
| Headline | Special Marine Warning issued July 11 at 2:51PM CDT until July 11 at 3:00PM CDT by NWS New Orleans LA |
| Expires | 2026-07-11T15:01:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a weather event with CalamityScore 48/100, near Metairie Terrace (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.