This alert expired on 3 August 2026 at 03:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 55 detections recorded within 20 km of this point since 3 July 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 2 at 9:26PM EDT until August 2 at 11:30PM EDT by NWS Binghamton NY
An estimated 55,016 people live within 50 km of this point.
Nearby, since 3 July 2026
- July 3, 2026 · score 39 · 6.2 km
- August 10, 2026 · score 43 · 6.9 km
- September 2, 2026 · score 37 · 20.5 km
How we know
Confirmed by 10 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 91 % 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 | 91% |
| Coordinates | 41.7020, -76.2150 |
| Nearest City | Back Mountain (44 km) |
| Population Exposed | 55.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-03T01:26:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.999d9f4056f92fa2682cd2aee596d127 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Broome, NY; Chenango, NY; Susquehanna, PA; Sullivan, PA |
| Headline | Flash Flood Warning issued August 2 at 9:26PM EDT until August 2 at 11:30PM EDT by NWS Binghamton NY |
| Expires | 2026-08-02T23:30:00-04:00 |
| SenderName | NWS Binghamton NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.999d9f4056f92fa2682cd2aee596d1275e314f6b.002.1","noaa_urn:oid:2.49.0.1.840.0.7cdf7db5c0fd308810f096e564f6f0fc09a41250.001.1"] |
| Iem TypeSummary | F |
| Iem City | 2 SE Forksville |
| Iem County | Sullivan |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Water over roadway by PA Route 154 and Worlds End Road. |
| MergedSources | [{"id":"iem_F_41.610_-76.450_1785718020000","source":"iem","severity":"low","severityValue":25,"timestamp":1785718020000,"latitude":41.61,"longitude":-76.45},{"id":"iem_F_41.510_-76.550_1785719040000","source":"iem","severity":"low","severityValue":25,"timestamp":1785719040000,"latitude":41.51,"longitude":-76.55},{"id":"iem_R_42.080_-76.050_1785718560000","source":"iem","severity":"low","severityValue":25,"timestamp":1785718560000,"latitude":42.08,"longitude":-76.05},{"id":"iem_R_42.120_-76.070_1785715500000","source":"iem","severity":"low","severityValue":25,"timestamp":1785715500000,"latitude":42.12,"longitude":-76.07},{"id":"iem_F_41.410_-76.580_1785717780000","source":"iem","severity":"low","severityValue":25,"timestamp":1785717780000,"latitude":41.41,"longitude":-76.58},{"id":"iem_F_41.540_-76.360_1785719160000","source":"iem","severity":"low","severityValue":25,"timestamp":1785719160000,"latitude":41.54,"longitude":-76.36},{"id":"iem_R_41.590_-76.350_1785719520000","source":"iem","severity":"low","severityValue":25,"timestamp":1785719520000,"latitude":41.59,"longitude":-76.35},{"id":"iem_F_41.530_-76.380_1785717900000","source":"iem","severity":"low","severityValue":25,"timestamp":1785717900000,"latitude":41.53,"longitude":-76.38},{"id":"iem_F_41.470_-76.580_1785720900000","source":"iem","severity":"low","severityValue":25,"timestamp":1785720900000,"latitude":41.47,"longitude":-76.58}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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 in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.