This alert expired on 27 June 2026 at 20:00 UTC. It is kept here as a record.
It is the 6th strongest of the 69 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 28 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 27 at 2:25PM CDT until June 27 at 3:00PM CDT by NWS New Orleans LA
An estimated 916,872 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 11, 2026 · score 48 · 3.4 km
- May 9, 2026 · score 48 · 4.3 km
- March 12, 2026 · score 48 · 4.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 78 % 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) | 48 / 100 |
| Our confidence | 78% |
| Coordinates | 30.2390, -90.1700 |
| Nearest City | Kenner (28 km) |
| Population Exposed | 916.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-27T19:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.378b057d2b262a53676b663b532a02c4 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Pontchartrain |
| Headline | Special Marine Warning issued June 27 at 2:25PM CDT until June 27 at 3:00PM CDT by NWS New Orleans LA |
| Expires | 2026-06-27T15:00:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.378b057d2b262a53676b663b532a02c4bc254a50.001.1","noaa_urn:oid:2.49.0.1.840.0.d15d2b45b2eed141a775d29af424dd46c107c79f.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 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 48/100, near Kenner (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.