This alert expired on 12 May 2026 at 19:05 UTC. It is kept here as a record.
It is the 3rd strongest of the 56 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued May 12 at 2:55PM EDT until May 12 at 3:00PM EDT by NWS Tampa Bay Ruskin FL
An estimated 839,015 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 10, 2026 · score 52 · 11.3 km
- August 30, 2026 · score 52 · 11.6 km
- May 12, 2026 · score 76 · 13.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 72 out of 100, at 81 % 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 | Critical |
| Calamity Score (ours) | 72 / 100 |
| Our confidence | 81% |
| Coordinates | 28.4117, -82.6133 |
| Nearest City | Spring Hill (11 km) |
| Population Exposed | 839.0K within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-05-12T18:55:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3f78c1f6cf6454f27afa314b2b5ab6bde996073d.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Hernando, FL; Pasco, FL |
| Headline | Tornado Warning issued May 12 at 2:55PM EDT until May 12 at 3:00PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-05-12T15:05:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 near Spring Hill?
Calamity.live data shows a weather event with CalamityScore 72/100, near Spring Hill (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.