This alert expired on 12 March 2026 at 22:15 UTC. It is kept here as a record.
It is the 10th strongest of the 19 detections recorded within 20 km of this point since 12 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 12 at 4:14PM EDT until March 12 at 6:15PM EDT by NWS Melbourne FL
An estimated 77,380 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 16, 2026 · score 39 · 7.2 km
- August 3, 2026 · score 43 · 11.9 km
- May 12, 2026 · score 43 · 14.8 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 88 % 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) | 39 / 100 |
| Our confidence | 88% |
| Coordinates | 28.4464, -80.2673 |
| Nearest City | Merritt Island (42 km) |
| Population Exposed | 77.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-12T20:14:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_b0a622f3385810004428b8576f56ca99bc234d0d_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 12 at 4:14PM EDT until March 12 at 6:15PM EDT by NWS Melbourne FL |
| Expires | 2026-03-12T18:15:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 43 |
| Iem Unit | MPH |
| Iem City | 5 WNW Playalinda Beach |
| Iem County | Brevard |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | USSF wind sensor on tower 415 measured a peak wind gust of 43MPH/37KT from the north at 4:15 PM. Sensor elevation is 54 feet. |
| MergedSources | [{"id":"iem_M_28.460_-80.720_1773348540000","source":"iem","severity":"low","severityValue":25,"timestamp":1773348540000,"latitude":28.46,"longitude":-80.72},{"id":"iem_G_28.740_-80.700_1773345900000","source":"iem","severity":"low","severityValue":25,"timestamp":1773345900000,"latitude":28.74,"longitude":-80.7},{"id":"iem_G_28.660_-80.700_1773346500000","source":"iem","severity":"low","severityValue":25,"timestamp":1773346500000,"latitude":28.66,"longitude":-80.7}] |
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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.