This alert expired on 19 June 2026 at 04:45 UTC. It is kept here as a record.
It is the 5th strongest of the 44 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 3 June 2026.
What the source measured
NOAA reported: Special Marine Warning issued June 18 at 8:49PM CDT until June 18 at 11:45PM CDT by NWS Tallahassee FL
An estimated 132,051 people live within 50 km of this point.
Nearby, since 12 March 2026
- June 3, 2026 · score 43 · 6.3 km
- July 18, 2026 · score 43 · 6.7 km
- March 12, 2026 · score 43 · 7.8 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 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 30.3479, -86.4669 |
| Nearest City | Fort Walton Beach (17 km) |
| Population Exposed | 132.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-19T01:49:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.dbb1b9e4576dc8a27b898012d1eebad0 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | St. Andrews Bay Waterways; Coastal waters from Okaloosa-Walton County Line to Mexico Beach out 20 NM; Perdido Bay Area; Pensacola Bay Area including Santa Rosa Sound; Coastal waters from Pensacola FL to Pascagoula MS out 20 NM; Coastal waters from Okaloosa-Walton County Line to Pensacola FL out 20 NM |
| Headline | Special Marine Warning issued June 18 at 8:49PM CDT until June 18 at 11:45PM CDT by NWS Tallahassee FL |
| Expires | 2026-06-18T23:45:00-05:00 |
| SenderName | NWS Tallahassee FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.dbb1b9e4576dc8a27b898012d1eebad0134834d6.001.1","noaa_urn:oid:2.49.0.1.840.0.2ee39aaeacc85ac1e93c9042d8b97c66e7145e0c.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 43/100, near Fort Walton Beach (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.