This alert expired on 9 May 2026 at 13:45 UTC. It is kept here as a record.
It is the 7th strongest of the 118 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 May 9 at 7:41AM CDT until May 9 at 8:45AM CDT by NWS New Orleans LA
An estimated 916,872 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 11, 2026 · score 48 · 0.9 km
- June 24, 2026 · score 48 · 2.4 km
- June 24, 2026 · score 48 · 2.6 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 81 % 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 | 81% |
| Coordinates | 30.2028, -90.1544 |
| Nearest City | Metairie (25 km) |
| Population Exposed | 916.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-09T12:41:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Maurepas; Lake Pontchartrain |
| Headline | Special Marine Warning issued May 9 at 7:41AM CDT until May 9 at 8:45AM CDT by NWS New Orleans LA |
| Expires | 2026-05-09T08:45:00-05:00 |
| 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 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.