This alert expired on 28 August 2026 at 20:00 UTC. It is kept here as a record.
No stronger detection stands among the 22 recorded within 20 km of this point since 16 March 2026 — 5 others scored the same. The last comparable one was on 6 August 2026.
What the source measured
NOAA reported: Special Marine Warning issued August 28 at 3:03PM EDT until August 28 at 4:00PM EDT by NWS Tampa Bay Ruskin FL
An estimated 1,393,736 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 16, 2026 · score 52 · 3.2 km
- May 18, 2026 · score 52 · 10.1 km
- August 4, 2026 · score 41 · 13.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 27.7177, -82.8846 |
| Nearest City | Seminole (16 km) |
| Population Exposed | 1.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-28T19:03:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Tampa Bay waters; Coastal waters from Englewood to Tarpon Springs FL out 20 NM; Waters from Englewood to Tarpon Springs FL out 20 to 60 NM |
| Headline | Special Marine Warning issued August 28 at 3:03PM EDT until August 28 at 4:00PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-08-28T16:00:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
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 52/100, near Seminole (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.