This alert expired on 8 July 2026 at 06:51 UTC. It is kept here as a record.
It is the 15th strongest of the 65 detections recorded within 20 km of this point since 1 April 2026. Another comparable one was recorded here earlier the same day. 26 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 8 at 2:41AM EDT until July 8 at 2:45AM EDT by NWS Pittsburgh PA
Nearby, since 1 April 2026
- June 20, 2026 · score 34 · 8.4 km
- August 2, 2026 · score 43 · 14.9 km
- July 19, 2026 · score 22 · 15.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 66 % 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) | 22 / 100 |
| Our confidence | 66% |
| Coordinates | 40.9550, -79.5650 |
| Nearest City | Plum (53 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-08T06:41:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e9335d452080ca2eee6bb7ded91fed475c458312.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Armstrong, PA; Clarion, PA |
| Headline | Flash Flood Warning issued July 8 at 2:41AM EDT until July 8 at 2:45AM EDT by NWS Pittsburgh PA |
| Expires | 2026-07-08T02:51:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 5 N West Hills |
| Iem County | Armstrong |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | Roadway flooding. |
| MergedSources | [{"id":"iem_F_40.900_-79.530_1783488600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783488600000,"latitude":40.9,"longitude":-79.53}] |
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.
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.