This alert expired on 17 July 2026 at 19:45 UTC. It is kept here as a record.
No stronger detection stands among the 65 recorded within 20 km of this point since 16 March 2026 — 26 others scored the same. The last comparable one was on 16 July 2026. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 17 at 2:43PM EDT until July 17 at 3:45PM EDT by NWS Tampa Bay Ruskin FL
An estimated 2,026,188 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 10, 2026 · score 52 · 2.1 km
- August 31, 2026 · score 46 · 4.2 km
- August 3, 2026 · score 46 · 6.2 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 | 27.7420, -82.6540 |
| Nearest City | St. Petersburg (4 km) |
| Population Exposed | 2.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-17T18:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.bb4cd1ee1e9620ba33e92d92110b9733eb9c49e0.001.1 |
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 |
| Headline | Special Marine Warning issued July 17 at 2:43PM EDT until July 17 at 3:45PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-07-17T15:45:00-04:00 |
| 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 St. Petersburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.