This alert is in force until 4 September 2026, 02:00 UTC.
It is the 65th strongest of the 95 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued September 3 at 3:03PM EDT until September 3 at 10:00PM EDT by NWS Cleveland OH
An estimated 93,673 people live within 50 km of this point.
Nearby, since 17 March 2026
- September 3, 2026 · score 51 · 0.0 km
- September 2, 2026 · score 51 · 0.0 km
- September 1, 2026 · score 32 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 32 / 100 |
| Our confidence | 81% |
| Coordinates | 43.0000, -75.5000 |
| Nearest City | Rome (24 km) |
| Population Exposed | 93.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T19:03:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.19c5a6939db5195211ab51a53435b3f322a75da1.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Maumee Bay to Reno Beach OH; Reno Beach to The Islands OH; The Islands to Vermilion OH; Vermilion to Avon Point OH; Avon Point to Willowick OH; Willowick to Geneva-on-the Lake OH; Geneva-on-the-Lake to Conneaut OH; Conneaut OH to Ripley NY; Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border; Reno Beach to The Islands OH beyond 5NM off shoreline to US-Canadian border; The Islands to Vermilion OH beyond 5 nm off shoreline to US-Canadian border; Vermilion to Avon Point OH beyond 5 nm off shoreline to US-Canadian border; Avon Point to Willowick OH beyond 5 nm off shoreline to US-Canadian border; Willowick to Geneva-on-the-Lake OH beyond 5NM off shoreline to US-Canadian border; Geneva-on-the-Lake to Conneaut OH beyond 5 nm off shoreline to US-Canadian border; Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-Canadian border |
| Headline | Severe Thunderstorm Watch issued September 3 at 3:03PM EDT until September 3 at 10:00PM EDT by NWS Cleveland OH |
| Expires | 2026-09-03T22:00:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | false |
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 near Rome?
Calamity.live data shows a weather event with CalamityScore 32/100, near Rome (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.