This alert expired on 20 July 2026 at 17:45 UTC. It is kept here as a record.
No stronger detection stands among the 7 recorded within 20 km of this point since 12 March 2026 — 6 others scored the same. The last comparable one was on 17 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 20 at 12:53PM EDT until July 20 at 1:45PM EDT by NWS Tampa Bay Ruskin FL
Nearby, since 12 March 2026
- July 21, 2026 · score 22 · 12.0 km
- March 12, 2026 · score 22 · 13.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 61 % 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) | 22 / 100 |
| Our confidence | 61% |
| Coordinates | 29.2501, -83.5873 |
| Nearest City | Gainesville (131 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-20T16:53:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM; Apalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River Fl out to 20 Nm; Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm; Coastal waters from Suwannee River to Keaton Beach out 20 NM; Waters from Suwannee River to Apalachicola FL from 20 to 60 NM |
| Headline | Special Marine Warning issued July 20 at 12:53PM EDT until July 20 at 1:45PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-07-20T13:45:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.72830cfd7a3619949feda7cb4233ec1afabf4933.001.1","noaa_urn:oid:2.49.0.1.840.0.8fb00e8688ccc8194f8b15759f035c72a64eed2e.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 22/100, near Gainesville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.