This alert expired on 29 August 2026 at 23:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 12 detections recorded within 20 km of this point since 11 July 2026. The last comparable one was on 3 August 2026.
What the source measured
NOAA reported: Special Marine Warning issued August 29 at 5:30PM EDT until August 29 at 7:00PM EDT by NWS Tampa Bay Ruskin FL
Nearby, since 11 July 2026
- September 3, 2026 · score 16 · 14.9 km
- August 3, 2026 · score 32 · 17.5 km
- July 11, 2026 · score 22 · 17.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 65 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 65% |
| Coordinates | 28.9185, -82.9177 |
| Nearest City | Spring Hill (62 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-29T21:30:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d2e6c444881fb44b103902a7402c38a447a70805.001.1 |
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; Coastal waters from Englewood to Tarpon Springs FL out 20 NM; Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM |
| Headline | Special Marine Warning issued August 29 at 5:30PM EDT until August 29 at 7:00PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-08-29T19:00:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 0.25 |
| Iem Unit | Inch |
| Iem City | 3 NE Moon Lake Estates |
| Iem County | Pasco |
| Iem State | FL |
| Iem Wfo | TBW |
| Iem Remark | Trained Spotter reported pea size hail. |
| MergedSources | [{"id":"iem_H_28.330_-82.560_1788036300000","source":"iem","severity":"low","severityValue":25,"timestamp":1788036300000,"latitude":28.33,"longitude":-82.56}] |
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 8 March 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.