Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 18 July 2026 at 17:45 UTC. It is kept here as a record.
It is the 19th strongest of the 50 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 7 July 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 12:35PM EDT until July 18 at 1:45PM EDT by NWS Buffalo NY
Nearby, since 17 March 2026
- September 9, 2026 · score 46 · 26.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 | Medium |
| Calamity Score (ours) | 16 / 100 |
| Legacy data-support index | 0.61/1 |
| Coordinates | 41.9717, -78.3025 |
| Nearest City | Jamestown (79 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-18T16:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ce1cd184b6901b58cfcb47b15bd5a8f2 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-18T16:35:00.000Z.
First archived: 2026-07-18T16:42:01.737Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Livingston, NY; Monroe, NY; Ontario, NY; Wayne, NY; Genesee, NY; Livingston, NY; Monroe, NY; Orleans, NY; Warren, PA and 1 more areas |
| Headline | Severe Thunderstorm Warning issued July 18 at 12:35PM EDT until July 18 at 1:45PM EDT by NWS Buffalo NY |
| Expires | 2026-07-18T13:45:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ce1cd184b6901b58cfcb47b15bd5a8f24d90abb0.001.1","noaa_urn:oid:2.49.0.1.840.0.fb80c3930b78a3bbe550c2ca3609d6f851714aa3.002.1","noaa_urn:oid:2.49.0.1.840.0.0e7321dfbe04c168913abedade4720aa2adb06fa.001.1","noaa_urn:oid:2.49.0.1.840.0.2023e8b647f30ce7fb3924e6bf274b33a6fd9cc8.001.1"] |
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 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.
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