This alert expired on 20 July 2026 at 21:15 UTC. It is kept here as a record.
It is the 4th strongest of the 19 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 17 July 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 20 at 4:31PM EDT until July 20 at 5:15PM EDT by NWS Tampa Bay Ruskin FL
An estimated 232,612 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 28, 2026 · score 43 · 14.3 km
- July 17, 2026 · score 43 · 15.2 km
- March 16, 2026 · score 43 · 16.1 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 | 27.2269, -82.5149 |
| Nearest City | Sarasota (13 km) |
| Population Exposed | 232.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-20T20:31:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Charlotte Harbor and Pine Island Sound; Coastal waters from Englewood to Tarpon Springs FL out 20 NM; Coastal waters from Bonita Beach to Englewood FL out 20 NM; Waters from Englewood to Tarpon Springs FL out 20 to 60 NM; Waters from Bonita Beach to Englewood FL out 20 to 60 NM; Tampa Bay waters; Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM; Coastal waters from Englewood to Tarpon Springs FL out 20 NM; Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM; Waters from Englewood to Tarpon Springs FL out 20 to 60 NM |
| Headline | Special Marine Warning issued July 20 at 4:31PM EDT until July 20 at 5:15PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-07-20T17:15:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.aa7875818b6022370828bd1cfed4a5739521672c.001.1","noaa_urn:oid:2.49.0.1.840.0.2dfeec13f5c526290dc191ebdb563c2a0c379b15.001.1"] |
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 Sarasota (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.