Right now
The most recent data we hold from NOAA arrived 5 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 9 May 2026 at 12:32 UTC. It is kept here as a record.
It is the 4th strongest of the 42 detections recorded within 20 km of this point since 30 April 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 9 at 7:22AM CDT until May 9 at 7:30AM CDT by NWS New Orleans LA
An estimated 27,942 people live within 50 km of this point.
Nearby, since 30 April 2026
- May 22, 2026 · score 34 · 12.1 km
- September 10, 2026 · score 28 · 13.6 km
- July 4, 2026 · score 34 · 16.3 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, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 80% |
| Coordinates | 30.5453, -89.8912 |
| Nearest City | Slidell (31 km) |
| Population Exposed | 27.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-09T12:22:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c8749fca6723fe9003eeb74bf1479093 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | St. Tammany, LA; Tangipahoa, LA; St. Tammany, LA; Washington, LA; Pearl River, MS |
| Headline | Severe Thunderstorm Warning issued May 9 at 7:22AM CDT until May 9 at 7:30AM CDT by NWS New Orleans LA |
| Expires | 2026-05-09T07:32:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c8749fca6723fe9003eeb74bf14790939a26975a.001.1","noaa_urn:oid:2.49.0.1.840.0.38dbf6c4f8289b40583a5a5cb3b20fc88542ca1b.001.1"] |
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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