This alert expired on 10 March 2026 at 00:22 UTC. It is kept here as a record.
No stronger detection stands among the 25 recorded within 20 km of this point since 9 March 2026 — 2 others scored the same. The last comparable one was on 9 March 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued March 9 at 7:12PM CDT until March 9 at 7:15PM CDT by NWS New Orleans LA
An estimated 83,622 people live within 50 km of this point.
Nearby, since 9 March 2026
- March 9, 2026 · score 63 · 0.2 km
- March 9, 2026 · score 63 · 3.0 km
- June 21, 2026 · score 39 · 9.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 63 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 63 / 100 |
| Our confidence | 85% |
| Coordinates | 30.7529, -90.7029 |
| Nearest City | Hammond (36 km) |
| Population Exposed | 83.6K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-10T00:12:00.000Z |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | St. Helena, LA |
| Headline | Tornado Warning issued March 9 at 7:12PM CDT until March 9 at 7:15PM CDT by NWS New Orleans LA |
| Expires | 2026-03-09T19:22:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 2 SSW Norfield |
| Iem County | Lincoln |
| Iem State | MS |
| Iem Wfo | JAN |
| MergedSources | [{"id":"iem_H_31.380_-90.490_1773096180000","source":"iem","severity":"low","severityValue":25,"timestamp":1773096180000}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 63/100, near Hammond (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.