This alert expired on 11 May 2026 at 00:45 UTC. It is kept here as a record.
No stronger detection stands among the 14 recorded within 20 km of this point since 16 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 10 at 7:08PM EDT until May 10 at 8:45PM EDT by NWS Melbourne FL
An estimated 267,895 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 30, 2026 · score 34 · 9.4 km
- July 31, 2026 · score 37 · 9.6 km
- June 19, 2026 · score 43 · 10.4 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 90 % 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) | 43 / 100 |
| Our confidence | 90% |
| Coordinates | 27.9950, -80.1400 |
| Nearest City | Sebastian (38 km) |
| Population Exposed | 267.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-10T23:08:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e90c5e0d87da0e0ac7795b83cfa1247ac0dee096.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Volusia-Brevard County Line to Sebastian Inlet 0-20 nm; Sebastian Inlet to Jupiter Inlet 0-20 nm; Volusia-Brevard County Line to Sebastian Inlet 20-60 nm |
| Headline | Special Marine Warning issued May 10 at 7:08PM EDT until May 10 at 8:45PM EDT by NWS Melbourne FL |
| Expires | 2026-05-10T20:45:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 47 |
| Iem Unit | MPH |
| Iem City | 2 ESE Cape Canaveral SF |
| Iem County | Brevard |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | USSF wind sensor on tower 3 measured a peak wind gust of 47MPH/41KT from the north at 6:35 PM. Earlier, a gust to 41MPH/36KT occurred at 6:30 PM. Sensor elevation is 54 feet. |
| MergedSources | [{"id":"iem_G_27.650_-80.420_1778447580000","source":"iem","severity":"low","severityValue":25,"timestamp":1778447580000,"latitude":27.65,"longitude":-80.42},{"id":"iem_G_28.460_-80.530_1778452500000","source":"iem","severity":"low","severityValue":25,"timestamp":1778452500000,"latitude":28.46,"longitude":-80.53}] |
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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.