Right now
The most recent data we hold from NOAA arrived 24 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 20 May 2026 at 04:15 UTC. It is kept here as a record.
It is the 5th strongest of the 53 detections recorded within 20 km of this point since 20 May 2026.
What the source measured
NOAA reported: Special Marine Warning issued May 19 at 10:12PM CDT until May 19 at 11:15PM CDT by NWS Lake Charles LA
An estimated 222,915 people live within 50 km of this point.
Nearby, since 20 May 2026
- May 20, 2026 · score 43 · 6.8 km
- August 31, 2026 · score 37 · 6.8 km
- June 19, 2026 · score 43 · 18.6 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 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 29.7210, -93.9829 |
| Nearest City | Port Arthur (19 km) |
| Population Exposed | 222.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-20T03:12:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.4ccfa177876738ef2a4359a84e4ca880 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Calcasieu Lake; Sabine Lake; Coastal waters from Cameron LA to High Island TX out 20 NM; Galveston Bay; Coastal waters from High Island to Freeport TX out 20 NM; Waters from High Island to Freeport TX from 20 to 60 NM |
| Headline | Special Marine Warning issued May 19 at 10:12PM CDT until May 19 at 11:15PM CDT by NWS Lake Charles LA |
| Expires | 2026-05-19T23:15:00-05:00 |
| SenderName | NWS Lake Charles LA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4ccfa177876738ef2a4359a84e4ca88014ca7a4b.001.1","noaa_urn:oid:2.49.0.1.840.0.e6e1429f67610bc1ee6da080509846e34187d7b6.001.1","noaa_urn:oid:2.49.0.1.840.0.d09086c4b6dd9b704fb4caf1ee980028b755cdce.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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