Right now
The most recent data we hold from NOAA arrived 39 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 23:30 UTC. It is kept here as a record.
It is the 17th strongest of the 57 detections recorded within 20 km of this point since 20 May 2026. The last comparable one was on 2 September 2026.
What the source measured
NOAA reported: Special Marine Warning issued September 22 at 5:55PM CDT until September 22 at 6:30PM CDT by NWS Lake Charles LA
Urban PEI: 222,915 within a heuristic 50 km radius; not unique people.
Nearby, since 20 May 2026
- September 1, 2026 · score 55 · 11.2 km
- July 15, 2026 · score 43 · 11.6 km
- May 20, 2026 · score 43 · 14.6 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 | 29.7962, -93.8638 |
| Nearest City | Port Arthur (13 km) |
| Urban exposure index (PEI) | 222.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-22T22:55:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.03b4426e681b939564deac7380de0ab643cda42b.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: 2026-09-22T22:55:00.000Z.
First archived: 2026-09-22T23:00:38.043Z. Material modification: 2026-09-22T23:22:20.162Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-22T23:22:20.162Z · data_change
Index 16 → 37; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Sabine Lake; Coastal waters from Cameron LA to High Island TX out 20 NM; Sabine Lake |
| Headline | Special Marine Warning issued September 22 at 5:55PM CDT until September 22 at 6:30PM CDT by NWS Lake Charles LA |
| Expires | 2026-09-22T18:30:00-05:00 |
| SenderName | NWS Lake Charles LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.03b4426e681b939564deac7380de0ab643cda42b.001.1","noaa_urn:oid:2.49.0.1.840.0.714a856d8468dfd207f3e8d1b76108dcd6341aa4.001.1"] |
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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