This alert expired on 12 May 2026 at 20:30 UTC. It is kept here as a record.
No stronger detection stands among the 39 recorded within 20 km of this point since 16 March 2026 — 16 others scored the same. The last comparable one was on 2 May 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 12 at 3:06PM EDT until May 12 at 4:30PM EDT by NWS Tampa Bay Ruskin FL
An estimated 1,777,836 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 16, 2026 · score 46 · 2.3 km
- March 16, 2026 · score 52 · 7.5 km
- July 10, 2026 · score 52 · 8.5 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 91 % 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 | 91% |
| Coordinates | 27.9033, -82.8242 |
| Nearest City | Largo (3 km) |
| Population Exposed | 1.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-12T19:06:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 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 May 12 at 3:06PM EDT until May 12 at 4:30PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-05-12T16:30:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| Iem TypeSummary | T |
| Iem City | 1 SSW Hudson |
| Iem County | Pasco |
| Iem State | FL |
| Iem Wfo | TBW |
| Iem Remark | Roof damage reported by Pasco Co Dispatch. Possible tornado. |
| Google News RssFeed | weather |
| Google News SourceName | wtsp.com |
| MergedSources | [{"id":"iem_M_28.370_-82.680_1778610600000","source":"iem","severity":"low","severityValue":25,"timestamp":1778610600000,"latitude":28.37,"longitude":-82.68},{"id":"iem_M_28.360_-82.710_1778610540000","source":"iem","severity":"low","severityValue":25,"timestamp":1778610540000,"latitude":28.36,"longitude":-82.71},{"id":"iem_T_28.350_-82.700_1778611020000","source":"iem","severity":"low","severityValue":25,"timestamp":1778611020000,"latitude":28.35,"longitude":-82.7},{"id":"gnews_weather_494057_202","source":"google_news","severity":"medium","severityValue":40,"timestamp":1778608392000,"latitude":27.95,"longitude":-82.46},{"id":"gnews_weather_494059_205","source":"google_news","severity":"medium","severityValue":40,"timestamp":1778615220000,"latitude":27.95,"longitude":-82.46}] |
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 Largo (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.