This alert expired on 12 June 2026 at 02:45 UTC. It is kept here as a record.
It is the 5th strongest of the 23 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 11 at 8:39PM EDT until June 11 at 10:45PM EDT by NWS Binghamton NY
An estimated 169,696 people live within 50 km of this point.
Nearby, since 17 March 2026
- July 27, 2026 · score 43 · 3.2 km
- June 11, 2026 · score 37 · 4.8 km
- July 15, 2026 · score 43 · 13.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 80 % 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) | 37 / 100 |
| Our confidence | 80% |
| Coordinates | 41.3200, -76.1403 |
| Nearest City | Back Mountain (12 km) |
| Population Exposed | 169.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T00:39:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.9c431f5bf65763d10c70cd4fda544ce4 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lackawanna, PA; Luzerne, PA; Columbia, PA; Lycoming, PA; Sullivan, PA; Luzerne, PA; Wyoming, PA |
| Headline | Flash Flood Warning issued June 11 at 8:39PM EDT until June 11 at 10:45PM EDT by NWS Binghamton NY |
| Expires | 2026-06-11T22:45:00-04:00 |
| SenderName | NWS Binghamton NY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9c431f5bf65763d10c70cd4fda544ce4a36847e6.001.1","noaa_urn:oid:2.49.0.1.840.0.f9b3a39011e89902350ca1869d12eda40104b08c.001.1","noaa_urn:oid:2.49.0.1.840.0.ff838f331a9ced1fa720a0b0a47950b78b47fc00.001.1"] |
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 near Back Mountain?
Calamity.live data shows a weather event with CalamityScore 37/100, near Back Mountain (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.