Right now
The most recent data we hold from NOAA arrived 21 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 12 July 2026 at 19:30 UTC. It is kept here as a record.
It is one of only 4 we have recorded within 20 km of this point since 24 June 2026. The last comparable one was on 1 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 12 at 2:15PM CDT until July 12 at 2:30PM CDT by NWS New Orleans LA
Nearby, since 24 June 2026
- July 1, 2026 · score 22 · 5.5 km
- June 24, 2026 · score 16 · 12.2 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.
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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 29.1692, -89.0369 |
| Nearest City | Chalmette (124 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-12T19:15:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.e0e26fac0a3c144aca6ad8e98d811baa |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm; Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm; 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 |
| Headline | Special Marine Warning issued July 12 at 2:15PM CDT until July 12 at 2:30PM CDT by NWS New Orleans LA |
| Expires | 2026-07-12T14:30:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e0e26fac0a3c144aca6ad8e98d811baa57481b13.002.1","noaa_urn:oid:2.49.0.1.840.0.ffe10845698c36e20d6a0ada43a3e0de126410b1.001.1"] |
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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.