This alert expired on 23 May 2026 at 17:45 UTC. It is kept here as a record.
No stronger detection stands among the 12 recorded within 20 km of this point since 20 May 2026 — 3 others scored the same. The last comparable one was on 20 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 23 at 11:46AM CDT until May 23 at 12:45PM CDT by NWS Lake Charles LA
An estimated 107,633 people live within 50 km of this point.
Nearby, since 20 May 2026
- May 27, 2026 · score 43 · 15.3 km
- June 16, 2026 · score 39 · 19.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 79% |
| Coordinates | 29.6656, -93.6889 |
| Nearest City | Port Arthur (35 km) |
| Population Exposed | 107.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-23T16:46:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.caa000b96795080cabdee95d3d4b1b082d4414f4.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Cameron LA to High Island TX out 20 NM; Coastal waters from Intracoastal City to Cameron LA out 20 NM |
| Headline | Special Marine Warning issued May 23 at 11:46AM CDT until May 23 at 12:45PM CDT by NWS Lake Charles LA |
| Expires | 2026-05-23T12:45:00-05:00 |
| SenderName | NWS Lake Charles 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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.