This alert expired on 19 July 2026 at 01:00 UTC. It is kept here as a record.
It is the 16th strongest of the 89 detections recorded within 20 km of this point since 17 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: Severe Thunderstorm Watch issued July 18 at 6:56PM EDT until July 18 at 9:00PM EDT by NWS Buffalo NY
An estimated 93,673 people live within 50 km of this point.
Nearby, since 17 March 2026
- September 1, 2026 · score 32 · 0.0 km
- August 10, 2026 · score 39 · 0.0 km
- August 8, 2026 · score 39 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 79 % 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) | 39 / 100 |
| Our confidence | 79% |
| Coordinates | 43.0000, -75.5000 |
| Nearest City | Rome (24 km) |
| Population Exposed | 93.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T22:56:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.c1e4e9761d982a2645181c8c3bceb4e1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Sodus Bay to Mexico Bay NY; Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border; Cayuga, NY; Ontario, NY; Oswego, NY; Wayne, NY; 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; 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 and 1 more areas |
| Headline | Severe Thunderstorm Watch issued July 18 at 6:56PM EDT until July 18 at 9:00PM EDT by NWS Buffalo NY |
| Expires | 2026-07-18T21:00:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | false |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c1e4e9761d982a2645181c8c3bceb4e13ab67f76.004.1","noaa_urn:oid:2.49.0.1.840.0.c1e4e9761d982a2645181c8c3bceb4e13ab67f76.003.1","noaa_urn:oid:2.49.0.1.840.0.0e9bfaa6e1617f4e03b3f1ce290837256c23dc7e.004.1","noaa_urn:oid:2.49.0.1.840.0.6e49a74e83fde4b5f192ef5c6f94d7dd9fb99799.001.1"] |
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.
Want to know when something happens near Rome?
Calamity.live data shows a weather event with CalamityScore 39/100, near Rome (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.