This alert expired on 5 August 2026 at 21:15 UTC. It is kept here as a record.
No stronger detection stands among the 41 recorded within 20 km of this point since 16 March 2026 — 17 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 5 at 4:41PM EDT until August 5 at 5:15PM EDT by NWS Tampa Bay Ruskin FL
An estimated 595,009 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 28, 2026 · score 48 · 1.0 km
- May 23, 2026 · score 48 · 6.7 km
- July 9, 2026 · score 48 · 7.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 26.4889, -81.9940 |
| Nearest City | Iona (5 km) |
| Population Exposed | 595.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-05T20:41:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Charlotte Harbor and Pine Island Sound; Coastal waters from Bonita Beach to Englewood FL out 20 NM; Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM |
| Headline | Special Marine Warning issued August 5 at 4:41PM EDT until August 5 at 5:15PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-08-05T17:15:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f3d9319ea32b48ac80405d39e724cca84e39ab56.001.1","noaa_urn:oid:2.49.0.1.840.0.6080037986b110c2a77dbaca6b0b0ac1e94aa7ad.001.1","noaa_urn:oid:2.49.0.1.840.0.eb4b5d370a38feba2138de84a2dab115496b437d.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 48/100, near Iona (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.