Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 24 May 2026 at 07:48 UTC. It is kept here as a record.
It is the 20th strongest of the 29 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 24 at 2:38AM CDT until May 24 at 2:45AM CDT by NWS New Orleans LA
An estimated 44,693 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 2, 2026 · score 22 · 5.4 km
- July 22, 2026 · score 43 · 17.6 km
- June 25, 2026 · score 16 · 18.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 80% |
| Coordinates | 29.9375, -89.4700 |
| Nearest City | Chalmette (48 km) |
| Population Exposed | 44.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-24T07:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.8d485b2d507aef766363d4e9a85f14cb |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Breton Sound; Chandeleur Sound; Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm; Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM; Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM; Lake Pontchartrain; Mississippi Sound; Lake Borgne; Lake Pontchartrain; Lake Borgne |
| Headline | Special Marine Warning issued May 24 at 2:38AM CDT until May 24 at 2:45AM CDT by NWS New Orleans LA |
| Expires | 2026-05-24T02:48:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8d485b2d507aef766363d4e9a85f14cbed35513e.001.1","noaa_urn:oid:2.49.0.1.840.0.93627e3c89bd6844df9befb7a00865276b54fae2.001.1","noaa_urn:oid:2.49.0.1.840.0.e379a032755ab7c9cd702db170f586f4497b6c7a.001.1"] |
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 8 March 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.