This alert expired on 15 March 2026 at 08:15 UTC. It is kept here as a record.
It is the 8th strongest of the 15 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 12 March 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued March 15 at 2:46AM EDT until March 15 at 4:15AM EDT by NWS Melbourne FL
An estimated 34,743 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 12, 2026 · score 39 · 5.8 km
- March 16, 2026 · score 39 · 8.0 km
- August 3, 2026 · score 43 · 16.6 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.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 77% |
| Coordinates | 28.4683, -80.2133 |
| Nearest City | Merritt Island (48 km) |
| Population Exposed | 34.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T06:46:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_a36e6be252fb5c6998aa8ea1854fc7d6a617bf53_001_1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Volusia-Brevard County Line to Sebastian Inlet 0-20 nm; Volusia-Brevard County Line to Sebastian Inlet 20-60 nm |
| Headline | Special Marine Warning issued March 15 at 2:46AM EDT until March 15 at 4:15AM EDT by NWS Melbourne FL |
| Expires | 2026-03-15T04:15:00-04:00 |
| SenderName | NWS Melbourne 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 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.
Want to know when something happens near Merritt Island?
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 188 scientific monitoring sources.