This alert expired on 20 June 2026 at 21:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 47 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 20 at 4:00PM EDT until June 20 at 5:00PM EDT by NWS Melbourne FL
An estimated 410,468 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 4, 2026 · score 48 · 3.3 km
- July 20, 2026 · score 48 · 3.5 km
- June 3, 2026 · score 37 · 6.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 84 % 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 | 84% |
| Coordinates | 27.6769, -80.3721 |
| Nearest City | Vero Beach (5 km) |
| Population Exposed | 410.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-20T20:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.db8b10fbdec757e388c996323e12d488 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Sebastian Inlet to Jupiter Inlet 0-20 nm; Volusia-Brevard County Line to Sebastian Inlet 0-20 nm; Sebastian Inlet to Jupiter Inlet 0-20 nm |
| Headline | Special Marine Warning issued June 20 at 4:00PM EDT until June 20 at 5:00PM EDT by NWS Melbourne FL |
| Expires | 2026-06-20T17:00:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.db8b10fbdec757e388c996323e12d488b966623a.001.1","noaa_urn:oid:2.49.0.1.840.0.ea8f3b4566e643b787d43e97698512b22417c3da.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 40 |
| Iem Unit | MPH |
| Iem City | 3 ENE Barefoot Bay |
| Iem County | Brevard |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | The WeatherFlow station at Melbourne Beach Barrier Island Sanctuary measured a peak wind gust of 40MPH/35KT from the northwest at 3:29 PM. |
| MergedSources | [{"id":"iem_G_27.900_-80.470_1781983740000","source":"iem","severity":"low","severityValue":25,"timestamp":1781983740000,"latitude":27.9,"longitude":-80.47}] |
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.
Calamity.live data shows a weather event with CalamityScore 43/100, near Vero Beach (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.