This alert expired on 16 March 2026 at 23:00 UTC. It is kept here as a record.
It is the 4th strongest of the 5 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 5:56PM EDT until March 16 at 7:00PM EDT by NWS Melbourne FL
An estimated 44,484 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 16, 2026 · score 43 · 14.6 km
- June 1, 2026 · score 22 · 17.9 km
- June 1, 2026 · score 43 · 21.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 77 % 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) | 34 / 100 |
| Our confidence | 77% |
| Coordinates | 27.4940, -79.8588 |
| Nearest City | Fort Pierce (47 km) |
| Population Exposed | 44.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T21:56:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.db285cd119aab9b251914fbb3b32ca75 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Sebastian Inlet to Jupiter Inlet 0-20 nm; Sebastian Inlet to Jupiter Inlet 20-60 nm; Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM; Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM; Volusia-Brevard County Line to Sebastian Inlet 0-20 nm |
| Headline | Special Marine Warning issued March 16 at 5:56PM EDT until March 16 at 7:00PM EDT by NWS Melbourne FL |
| Expires | 2026-03-16T19:00:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.db285cd119aab9b251914fbb3b32ca758822b8e6.001.1","noaa_urn:oid:2.49.0.1.840.0.377fdc6331993ae7fba7c9b8535b01bf18cc66d6.001.1","noaa_urn:oid:2.49.0.1.840.0.61693cb5a8e5231f741e7230929ee9bbc0f67312.001.1"] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.