This alert expired on 21 June 2026 at 21:45 UTC. It is kept here as a record.
It is the 353rd strongest of the 469 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 20 June 2026. 20 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 21 at 4:52PM EDT until June 21 at 5:45PM EDT by NWS Melbourne FL
An estimated 366,407 people live within 50 km of this point.
Nearby, since 15 March 2026
- August 4, 2026 · score 43 · 2.3 km
- July 20, 2026 · score 43 · 4.2 km
- August 12, 2026 · score 43 · 6.3 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.
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 | 86% |
| Coordinates | 27.9880, -80.4820 |
| Nearest City | Palm Bay (12 km) |
| Population Exposed | 366.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-21T20:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.05dc415c2ce2d69f38eda4267743293028608cdf.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 June 21 at 4:52PM EDT until June 21 at 5:45PM EDT by NWS Melbourne FL |
| Expires | 2026-06-21T17:45:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 44 |
| Iem Unit | MPH |
| Iem City | 4 ESE Port Saint John |
| Iem County | AMZ552 |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | CWOP mesonet station FW0175 Merritt Island measured a wind gust of 44MPH/38KTS from the west-northwest. |
| MergedSources | [{"id":"iem_M_28.460_-80.720_1782072900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782072900000,"latitude":28.46,"longitude":-80.72}] |
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 near Palm Bay?
Calamity.live data shows a weather event with CalamityScore 43/100, near Palm Bay (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.