This alert expired on 9 May 2026 at 12:30 UTC. It is kept here as a record.
It is the 9th strongest of the 32 detections recorded within 20 km of this point since 8 March 2026. The last comparable one was on 26 April 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 9 at 6:38AM CDT until May 9 at 7:30AM CDT by NWS New Orleans LA
An estimated 78,294 people live within 50 km of this point.
Nearby, since 8 March 2026
- June 18, 2026 · score 37 · 7.4 km
- March 11, 2026 · score 39 · 15.1 km
- March 9, 2026 · score 22 · 15.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 80 % 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) | 39 / 100 |
| Our confidence | 80% |
| Coordinates | 30.4421, -90.1950 |
| Nearest City | Hammond (26 km) |
| Population Exposed | 78.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-09T11:38:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d6827243f8368fb8bf0b61878d408e5d7e725a20.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Livingston, LA; St. Helena, LA; St. Tammany, LA; Tangipahoa, LA; Washington, LA |
| Headline | Severe Thunderstorm Warning issued May 9 at 6:38AM CDT until May 9 at 7:30AM CDT by NWS New Orleans LA |
| Expires | 2026-05-09T07:30:00-05:00 |
| 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 39/100, near Hammond (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.