This alert expired on 20 June 2026 at 20:00 UTC. It is kept here as a record.
It is the 12th strongest of the 29 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 20 at 2:05PM CDT until June 20 at 3:00PM CDT by NWS New Orleans LA
An estimated 425,308 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 6, 2026 · score 43 · 1.0 km
- June 16, 2026 · score 43 · 1.4 km
- May 8, 2026 · score 43 · 5.4 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 | 30.2480, -90.5050 |
| Nearest City | Laplace (20 km) |
| Population Exposed | 425.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-20T19:05:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Maurepas |
| Headline | Special Marine Warning issued June 20 at 2:05PM CDT until June 20 at 3:00PM CDT by NWS New Orleans LA |
| Expires | 2026-06-20T15:00:00-05:00 |
| SenderName | NWS New Orleans 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, near Laplace (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.