This alert expired on 25 June 2026 at 21:30 UTC. It is kept here as a record.
It is the 16th strongest of the 19 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 June 25 at 3:35PM CDT until June 25 at 4:30PM CDT by NWS New Orleans LA
Nearby, since 16 March 2026
- August 2, 2026 · score 22 · 12.7 km
- March 16, 2026 · score 43 · 15.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 56 % 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) | 16 / 100 |
| Our confidence | 56% |
| Coordinates | 29.8900, -89.2908 |
| Nearest City | Long Beach (53 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-25T20:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.f5f3c822a2a265159ad57df937660a90 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Mississippi Sound; Chandeleur Sound; Breton Sound |
| Headline | Special Marine Warning issued June 25 at 3:35PM CDT until June 25 at 4:30PM CDT by NWS New Orleans LA |
| Expires | 2026-06-25T16:30:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f5f3c822a2a265159ad57df937660a90e3ffab8a.001.1","noaa_urn:oid:2.49.0.1.840.0.21ede0a2a80f0b11bd35261b0f11553173c97e20.001.1"] |
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 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.