This alert expired on 17 March 2026 at 05:30 UTC. It is kept here as a record.
It is one of only 2 we have recorded within 20 km of this point since 13 March 2026. The last comparable one was on 13 March 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued March 17 at 12:33AM EDT until March 17 at 1:30AM EDT by NWS Miami FL
Nearby, since 13 March 2026
- March 13, 2026 · score 22 · 17.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 58 % 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) | 22 / 100 |
| Our confidence | 58% |
| Coordinates | 25.9463, -79.2888 |
| Nearest City | Sunny Isles Beach (83 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-17T04:33:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a436bd4be2050301804386ce962e7ad26fb20c65.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM; Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM; Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas |
| Headline | Special Marine Warning issued March 17 at 12:33AM EDT until March 17 at 1:30AM EDT by NWS Miami FL |
| Expires | 2026-03-17T01:30:00-04:00 |
| SenderName | NWS Miami FL |
| 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 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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.