Right now
The most recent data we hold from NOAA arrived 4 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 September 2026 at 03:45 UTC. It is kept here as a record.
It is the 24th strongest of the 33 detections recorded within 20 km of this point since 25 April 2026. The last comparable one was on 4 September 2026.
What the source measured
NOAA reported: Special Marine Warning issued September 21 at 10:02PM CDT until September 21 at 10:45PM CDT by NWS New Orleans LA
Urban PEI: 121,367 within a heuristic 50 km radius; not unique people.
Nearby, since 25 April 2026
- May 28, 2026 · score 43 · 4.6 km
- June 24, 2026 · score 43 · 5.1 km
- May 24, 2026 · score 43 · 9.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 30.3632, -88.4899 |
| Nearest City | Pascagoula (7 km) |
| Urban exposure index (PEI) | 121.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-22T03:02:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.dac6c2089b23b51692d2b88ef787117129cb7ed7.001.1 |
Physical priority index · v5. 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: 2026-09-22T03:02:00.000Z.
First archived: 2026-09-22T03:04:50.739Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-22T03:21:06.790Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
2026-09-22T03:15:45.741Z · data_change
Index 37 → 37; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Mississippi Sound; Chandeleur Sound; Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM; North Mobile Bay; South Mobile Bay; Mississippi Sound; Coastal waters from Pensacola FL to Pascagoula MS out 20 NM |
| Headline | Special Marine Warning issued September 21 at 10:02PM CDT until September 21 at 10:45PM CDT by NWS New Orleans LA |
| Expires | 2026-09-21T22:45:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.dac6c2089b23b51692d2b88ef787117129cb7ed7.001.1","noaa_urn:oid:2.49.0.1.840.0.ba0fb1ba90e9d104dc3a94650a508baad3081eb6.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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