This alert expired on 20 July 2026 at 21:45 UTC. It is kept here as a record.
It is the 43rd strongest of the 95 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 12 July 2026. 18 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 20 at 5:03PM EDT until July 20 at 5:45PM EDT by NWS Jacksonville FL
An estimated 432,083 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 25, 2026 · score 43 · 5.7 km
- July 30, 2026 · score 43 · 7.4 km
- July 27, 2026 · score 43 · 8.5 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 80 % 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 | 80% |
| Coordinates | 28.8010, -80.8001 |
| Nearest City | Titusville (21 km) |
| Population Exposed | 432.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-20T21:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.1a6ea40cb28514d84d689a3d65469574 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from St. Augustine to Flagler Beach FL out 20 NM; Flagler Beach to Volusia-Brevard County Line 0-20 nm; Sebastian Inlet to Jupiter Inlet 0-20 nm |
| Headline | Special Marine Warning issued July 20 at 5:03PM EDT until July 20 at 5:45PM EDT by NWS Jacksonville FL |
| Expires | 2026-07-20T17:45:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1a6ea40cb28514d84d689a3d65469574c0a60dab.001.1","noaa_urn:oid:2.49.0.1.840.0.2f77bf7a6968b55eb4a2e30c57867362f8c05602.001.1","noaa_urn:oid:2.49.0.1.840.0.a449375bbde6d7254bc3d510589b6530b47e655a.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 Titusville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.