This alert expired on 1 September 2026 at 04:00 UTC. It is kept here as a record.
It is the 7th strongest of the 19 detections recorded within 20 km of this point since 17 June 2026. The last comparable one was on 29 August 2026.
What the source measured
NOAA reported: Special Marine Warning issued August 31 at 10:04PM CDT until August 31 at 11:00PM CDT by NWS New Orleans LA
Nearby, since 17 June 2026
- September 1, 2026 · score 16 · 5.9 km
- August 29, 2026 · score 22 · 9.8 km
- July 22, 2026 · score 22 · 14.7 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 61 % 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) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 29.1268, -91.0358 |
| Nearest City | Houma (61 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-01T03:04:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.d4f5f93f8c11b820d6f2f5c0bfe6ddf2824fb784.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Terrebonne Bay; Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM |
| Headline | Special Marine Warning issued August 31 at 10:04PM CDT until August 31 at 11:00PM CDT by NWS New Orleans LA |
| Expires | 2026-08-31T23:00:00-05:00 |
| 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 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.