Right now
The most recent data we hold from NOAA arrived 9 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 16 March 2026 at 09:15 UTC. It is kept here as a record.
It is the 26th strongest of the 35 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued March 16 at 3:12AM CDT until March 16 at 4:15AM CDT by NWS New Orleans LA
An estimated 60,248 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 2, 2026 · score 22 · 11.0 km
- July 22, 2026 · score 43 · 11.4 km
- June 15, 2026 · score 48 · 14.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 82 % 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) | 39 / 100 |
| Our confidence | 82% |
| Coordinates | 30.0057, -89.4838 |
| Nearest City | Slidell (42 km) |
| Population Exposed | 60.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T08:12:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ce13b7831e7955d7f56c6bb0007830380f32026f.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Mississippi Sound; Lake Borgne; Chandeleur Sound; Breton Sound; Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM |
| Headline | Special Marine Warning issued March 16 at 3:12AM CDT until March 16 at 4:15AM CDT by NWS New Orleans LA |
| Expires | 2026-03-16T04:15:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 1 ESE Slidell |
| Spc County | St. Tammany |
| Spc State | LA |
| Spc Comments | Small tree down on Marsha Dr. (LIX) |
| MergedSources | [{"id":"spc_wind_30.28_-89.76_335","source":"spc","severity":"medium","severityValue":45,"timestamp":1773648060000,"latitude":30.28,"longitude":-89.76}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.