This alert expired on 31 July 2026 at 19:15 UTC. It is kept here as a record.
It is the 46th strongest of the 67 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 31 at 1:44PM EDT until July 31 at 3:15PM EDT by NWS Melbourne FL
An estimated 223,770 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 30, 2026 · score 43 · 2.0 km
- June 19, 2026 · score 43 · 2.5 km
- March 15, 2026 · score 43 · 4.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Our confidence | 81% |
| Coordinates | 28.8649, -80.7434 |
| Nearest City | Edgewater (21 km) |
| Population Exposed | 223.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-31T17:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.19aedc46a71de54b62f2eff025b820af |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Volusia-Brevard County Line to Sebastian Inlet 0-20 nm; Flagler Beach to Volusia-Brevard County Line 0-20 nm |
| Headline | Special Marine Warning issued July 31 at 1:44PM EDT until July 31 at 3:15PM EDT by NWS Melbourne FL |
| Expires | 2026-07-31T15:15:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.19aedc46a71de54b62f2eff025b820afa89c7559.001.1","noaa_urn:oid:2.49.0.1.840.0.0470ad4605e4e7be6abd996c1fd3c2a2117ed5e6.001.1"] |
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.
Calamity.live data shows a weather event with CalamityScore 37/100, near Edgewater (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.