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 31 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.
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 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 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.