This alert expired on 10 July 2026 at 18:53 UTC. It is kept here as a record.
It is the 3rd strongest of the 62 detections recorded within 20 km of this point since 8 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 10 at 1:43PM CDT until July 10 at 1:45PM CDT by NWS New Orleans LA
An estimated 900,495 people live within 50 km of this point.
Nearby, since 8 March 2026
- May 28, 2026 · score 48 · 3.2 km
- June 18, 2026 · score 37 · 9.8 km
- March 16, 2026 · score 48 · 11.4 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 81 % 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) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 30.3022, -90.2667 |
| Nearest City | Hammond (29 km) |
| Population Exposed | 900.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-10T18:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.212272dc123826c7a36f7f7e0ca7bfc03aadb721.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Pontchartrain |
| Headline | Special Marine Warning issued July 10 at 1:43PM CDT until July 10 at 1:45PM CDT by NWS New Orleans LA |
| Expires | 2026-07-10T13:53:00-05:00 |
| 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 48/100, near Hammond (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.