Right now
The most recent data we hold from NOAA arrived 9 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 22 May 2026 at 21:15 UTC. It is kept here as a record.
It is the 4th strongest of the 40 detections recorded within 20 km of this point since 30 April 2026. The last comparable one was on 12 May 2026. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 22 at 3:24PM CDT until May 22 at 4:15PM CDT by NWS New Orleans LA
Urban PEI: 27,942 within a heuristic 50 km radius; not unique people.
Nearby, since 30 April 2026
- May 22, 2026 · score 34 · 6.8 km
- July 4, 2026 · score 34 · 14.2 km
- July 3, 2026 · score 34 · 14.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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 | Medium |
| Calamity Score (ours) | 34 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 30.5964, -89.8782 |
| Nearest City | Slidell (36 km) |
| Urban exposure index (PEI) | 27.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-22T20:24:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.061c6ecd31b59e0e6263cac704ed814406793e13.001.1 |
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: 2026-05-22T20:24:00.000Z.
First archived: 2026-05-22T20:42:50.784Z. 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 | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | St. Tammany, LA |
| Headline | Severe Thunderstorm Warning issued May 22 at 3:24PM CDT until May 22 at 4:15PM CDT by NWS New Orleans LA |
| Expires | 2026-05-22T16:15:00-05:00 |
| 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 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.
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