This alert expired on 12 May 2026 at 03:15 UTC. It is kept here as a record.
No stronger detection stands among the 83 recorded within 20 km of this point since 12 March 2026 — 41 others scored the same. Another comparable one was recorded here earlier the same day. 21 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 11 at 10:50PM EDT until May 11 at 11:15PM EDT by NWS Melbourne FL
An estimated 347,890 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 30, 2026 · score 43 · 0.8 km
- August 1, 2026 · score 43 · 6.4 km
- June 16, 2026 · score 43 · 8.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 86 % 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) | 43 / 100 |
| Our confidence | 86% |
| Coordinates | 28.3662, -80.3875 |
| Nearest City | Merritt Island (30 km) |
| Population Exposed | 347.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-12T02:50:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.54681d8c43e047e38c9765ceafdaa4d89b1adcf9.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Volusia-Brevard County Line to Sebastian Inlet 0-20 nm |
| Headline | Special Marine Warning issued May 11 at 10:50PM EDT until May 11 at 11:15PM EDT by NWS Melbourne FL |
| Expires | 2026-05-11T23:15:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 39 |
| Iem Unit | MPH |
| Iem City | 2 WSW Port Canaveral |
| Iem County | AMZ552 |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | USSF wind sensor on tower 0300 measured a peak wind gust of 39MPH/34KT from the north at 10:00 PM. Sensor elevation is 54 feet. |
| MergedSources | [{"id":"iem_M_28.400_-80.650_1778551200000","source":"iem","severity":"low","severityValue":25,"timestamp":1778551200000,"latitude":28.4,"longitude":-80.65}] |
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 43/100, near Merritt Island (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.