This alert expired on 4 September 2026 at 03:30 UTC. It is kept here as a record.
It is the 7th strongest of the 108 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 3 September 2026.
What the source measured
NOAA reported: Flash Flood Warning issued September 3 at 8:02PM EDT until September 3 at 11:30PM EDT by NWS Pittsburgh PA
An estimated 645,564 people live within 50 km of this point.
Nearby, since 16 March 2026
- September 3, 2026 · score 54 · 0.0 km
- July 5, 2026 · score 43 · 11.0 km
- September 4, 2026 · score 37 · 13.7 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 54 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 54 / 100 |
| Our confidence | 91% |
| Coordinates | 40.7392, -80.2991 |
| Nearest City | Cranberry Township (17 km) |
| Population Exposed | 645.6K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-04T00:02:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.05a188b194f6957a25c3d6c5d3cdcdc58cc00b62.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Columbiana, OH; Beaver, PA; Lawrence, PA; Carroll, OH; Columbiana, OH; Harrison, OH; Jefferson, OH; Beaver, PA; Brooke, WV; Hancock, WV; Lawrence, PA; Mercer, PA and 8 more areas |
| Headline | Flash Flood Warning issued September 3 at 8:02PM EDT until September 3 at 11:30PM EDT by NWS Pittsburgh PA |
| Expires | 2026-09-03T23:30:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.05a188b194f6957a25c3d6c5d3cdcdc58cc00b62.001.1","noaa_urn:oid:2.49.0.1.840.0.8de95abe36503bc08744c7c2fdab3a70cfb979b1.001.1","noaa_urn:oid:2.49.0.1.840.0.fea67226660368d094df97665795c783e7531735.001.1","noaa_urn:oid:2.49.0.1.840.0.36aeaa7a2aaddbed86c76a64fd408b5cea9cabf7.001.1","noaa_urn:oid:2.49.0.1.840.0.9bbfe4bcdee3b6ef5a51e6b6898128da1efd0d7a.001.1","noaa_urn:oid:2.49.0.1.840.0.78599043d64ed51e50257ea5604016cf7df52cd5.001.1","noaa_urn:oid:2.49.0.1.840.0.1dfd71edcb67fc1422e80891800963baf3ff0986.001.1","noaa_urn:oid:2.49.0.1.840.0.848d06cc800f2189d0cacd656393c0c26d909166.001.1","noaa_urn:oid:2.49.0.1.840.0.4804be1fe2f3708290ae00f772a1375007d631bd.001.1","noaa_urn:oid:2.49.0.1.840.0.bf98460772c6bd0a08a41547200512c74f6d1fd2.001.1","noaa_urn:oid:2.49.0.1.840.0.2c34c15ace5cc207a2a8c3e73f00eb6d225b5ad6.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 150 |
| Spc Location | 1 ESE Bethany |
| Spc County | Brooke |
| Spc State | WV |
| Spc Comments | (PBZ) |
| Iem TypeSummary | D |
| Iem City | 1 NNW Wampum |
| Iem County | Lawrence |
| Iem State | PA |
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 near Cranberry Township?
Calamity.live data shows a weather event with CalamityScore 54/100, near Cranberry Township (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.