This alert expired on 22 July 2026 at 03:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 17 detections recorded within 20 km of this point since 17 June 2026. The last comparable one was on 21 July 2026. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 21 at 9:50PM CDT until July 21 at 10:45PM CDT by NWS New Orleans LA
Nearby, since 17 June 2026
- July 12, 2026 · score 22 · 5.5 km
- August 29, 2026 · score 22 · 12.0 km
- June 17, 2026 · score 39 · 13.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 29.2162, -91.1469 |
| Nearest City | Bayou Cane (59 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-22T02:50:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.447cecf2a574ec6a62a38337ce6579d9f57532ae.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm |
| Headline | Special Marine Warning issued July 21 at 9:50PM CDT until July 21 at 10:45PM CDT by NWS New Orleans LA |
| Expires | 2026-07-21T22:45:00-05:00 |
| 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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.