This alert expired on 12 July 2026 at 21:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 53 detections recorded within 20 km of this point since 25 March 2026. The last comparable one was on 25 June 2026.
What the source measured
NOAA reported: Special Marine Warning issued July 12 at 4:14PM EDT until July 12 at 5:45PM EDT by NWS Melbourne FL
An estimated 351,222 people live within 50 km of this point.
Nearby, since 25 March 2026
- June 25, 2026 · score 43 · 2.5 km
- August 12, 2026 · score 43 · 5.7 km
- June 3, 2026 · score 43 · 7.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 81 % 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 | 81% |
| Coordinates | 27.8233, -80.3485 |
| Nearest City | Sebastian (12 km) |
| Population Exposed | 351.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T20:14:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.520047c2a55dbd2ee5ffd79eea8a53a1 |
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; Sebastian Inlet to Jupiter Inlet 20-60 nm; 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 July 12 at 4:14PM EDT until July 12 at 5:45PM EDT by NWS Melbourne FL |
| Expires | 2026-07-12T17:45:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.520047c2a55dbd2ee5ffd79eea8a53a16b0acbbb.001.1","noaa_urn:oid:2.49.0.1.840.0.c7edc038d885646666db20d392a254c87a8bacb8.001.1"] |
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 Sebastian?
Calamity.live data shows a weather event with CalamityScore 43/100, near Sebastian (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.