Right now
The most recent data we hold from NOAA arrived 6 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 18 June 2026 at 09:15 UTC. It is kept here as a record.
No stronger detection stands among the 51 recorded within 20 km of this point since 22 May 2026 — 22 others scored the same. Another comparable one was recorded here earlier the same day. 22 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 18 at 3:44AM CDT until June 18 at 4:15AM CDT by NWS New Orleans LA
Urban PEI: 882,022 within a heuristic 50 km radius; not unique people.
Nearby, since 22 May 2026
- June 18, 2026 · score 72 · 4.9 km
- June 18, 2026 · score 72 · 6.8 km
- June 20, 2026 · score 48 · 8.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 72 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 | Critical |
| Calamity Score (ours) | 72 / 100 |
| Legacy data-support index | 0.79/1 |
| Coordinates | 29.7704, -90.5243 |
| Nearest City | Houma (27 km) |
| Urban exposure index (PEI) | 882.0K within 50 km |
| Impact Tier | catastrophic |
| Date | 2026-06-18 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.8c7c98cac6d2a171c08cd02fc3b7c259 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-18 — time not reported.
First archived: 2026-06-18T08:45:17.157Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lafourche, LA; St. Charles, LA; St. Charles, LA; Lafourche, LA; Terrebonne, LA and 1 more areas |
| Headline | Tornado Warning issued June 18 at 3:44AM CDT until June 18 at 4:15AM CDT by NWS New Orleans LA |
| Expires | 2026-06-18T04:15:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8c7c98cac6d2a171c08cd02fc3b7c2595fcaa715.001.1","noaa_urn:oid:2.49.0.1.840.0.0309855b10f9ccb97fb17ea3e88079edb57334f1.002.1","noaa_urn:oid:2.49.0.1.840.0.0ef794f7d40880e4466fb33b30fc1ff785900869.001.1","noaa_urn:oid:2.49.0.1.840.0.a46a05ec88961e5d0b055cd610bc14adb16a64af.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 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.
Review the area, threshold and delivery channel in your account.
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