Right now
The most recent data we hold from NOAA arrived 8 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 07:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 22 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 22 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 24 at 1:23AM CDT until May 24 at 2:15AM CDT by NWS New Orleans LA
An estimated 838,578 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 24, 2026 · score 48 · 10.2 km
- March 16, 2026 · score 48 · 16.4 km
- June 19, 2026 · score 72 · 17.2 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.
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) | 48 / 100 |
| Our confidence | 80% |
| Coordinates | 29.8177, -89.8534 |
| Nearest City | Chalmette (18 km) |
| Population Exposed | 838.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-24T06:23:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.b628fb0abc2e793b84d54044d48687cf |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Salvador and Lake Cataouatche; Barataria Bay; Mississippi Sound; Lake Borgne; Breton Sound; Chandeleur Sound; Barataria Bay; Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM; 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 |
| Headline | Special Marine Warning issued May 24 at 1:23AM CDT until May 24 at 2:15AM CDT by NWS New Orleans LA |
| Expires | 2026-05-24T02:15:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b628fb0abc2e793b84d54044d48687cf73cc3b82.001.1","noaa_urn:oid:2.49.0.1.840.0.e0609d890d757aa7751ed6f51fe5612c2ad5522c.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.
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