This alert expired on 12 March 2026 at 03:45 UTC. It is kept here as a record.
No stronger detection stands among the 88 recorded within 20 km of this point since 12 March 2026 — 4 others scored the same.
What the source measured
NOAA reported: Tornado Warning issued March 11 at 10:32PM CDT until March 11 at 10:45PM CDT by NWS New Orleans LA
An estimated 186,682 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 26, 2026 · score 43 · 10.8 km
- June 18, 2026 · score 67 · 11.0 km
- May 28, 2026 · score 43 · 13.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 67 out of 100, at 79 % 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) | 67 / 100 |
| Our confidence | 79% |
| Coordinates | 30.4541, -89.5058 |
| Nearest City | Slidell (33 km) |
| Population Exposed | 186.7K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-12T03:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado-Warning_noaa_urn-oid-2_49_0_1_840_0_c39c98a98807edbd7b22b180ae3f5484 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Hancock, MS; St. Tammany, LA; Hancock, MS |
| Headline | Tornado Warning issued March 11 at 10:32PM CDT until March 11 at 10:45PM CDT by NWS New Orleans LA |
| Expires | 2026-03-11T22:45:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c39c98a98807edbd7b22b180ae3f54842a7cc28d.002.1","noaa_urn:oid:2.49.0.1.840.0.2ea1a1de5af70f57abc65fbdbd5622113ad7fc8c.002.1","noaa_urn:oid:2.49.0.1.840.0.3a3951557a5975a2a9addf914c23d18c9c006edb.001.1"] |
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 67/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.