This alert expired on 13 May 2026 at 22:15 UTC. It is kept here as a record.
It is the 46th strongest of the 72 detections recorded within 20 km of this point since 31 March 2026. The last comparable one was on 31 March 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 13 at 5:11PM EDT until May 13 at 6:15PM EDT by NWS Binghamton NY
An estimated 76,680 people live within 50 km of this point.
Nearby, since 31 March 2026
- May 13, 2026 · score 43 · 6.5 km
- August 28, 2026 · score 45 · 11.9 km
- August 27, 2026 · score 45 · 11.9 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 89 % 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 | Medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 89% |
| Coordinates | 42.6495, -76.4612 |
| Nearest City | Ithaca (24 km) |
| Population Exposed | 76.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-13T21:11:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a6a5e8962a90345f5c8486fa82977560 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chemung, NY; Steuben, NY; Bradford, PA; Tioga, PA; Cortland, NY; Onondaga, NY and 1 more areas |
| Headline | Severe Thunderstorm Warning issued May 13 at 5:11PM EDT until May 13 at 6:15PM EDT by NWS Binghamton NY |
| Expires | 2026-05-13T18:15:00-04:00 |
| SenderName | NWS Binghamton NY |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a6a5e8962a90345f5c8486fa829775605c20276e.001.1","noaa_urn:oid:2.49.0.1.840.0.60d5e3f9f42e0f235bdc7718b86aa3524418daf7.001.1","noaa_urn:oid:2.49.0.1.840.0.72ac8983fc251300920c390f1a6589906ecf7885.002.1","noaa_urn:oid:2.49.0.1.840.0.eafd0fc79198c7b4c027dca164780291d6ce96de.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 0.88 |
| Iem Unit | Inch |
| Iem City | Packwood Corners |
| Iem County | Seneca |
| Iem State | NY |
| Iem Wfo | BGM |
| Iem Remark | Intersection of Brewer Road and Waterloo-Geneva Road. Estimated 45 mph gusts as well. Relayed by NWS BUF. |
| MergedSources | [{"id":"iem_D_43.060_-76.870_1778702820000","source":"iem","severity":"low","severityValue":25,"timestamp":1778702820000,"latitude":43.06,"longitude":-76.87},{"id":"iem_D_42.890_-76.990_1778702160000","source":"iem","severity":"low","severityValue":25,"timestamp":1778702160000,"latitude":42.89,"longitude":-76.99},{"id":"iem_H_42.900_-76.910_1778702280000","source":"iem","severity":"low","severityValue":25,"timestamp":1778702280000,"latitude":42.9,"longitude":-76.91}] |
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 Ithaca?
Calamity.live data shows a weather event with CalamityScore 39/100, near Ithaca (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.