This alert expired on 9 August 2026 at 04:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 18 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 8 August 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 8 at 8:38PM EDT until August 9 at 12:30AM EDT by NWS Cleveland OH
An estimated 99,475 people live within 50 km of this point.
Nearby, since 17 March 2026
- July 21, 2026 · score 46 · 15.6 km
- July 3, 2026 · score 22 · 16.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 81 % 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 | 81% |
| Coordinates | 41.8156, -79.7433 |
| Nearest City | Erie (45 km) |
| Population Exposed | 99.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-09T00:38:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9b725cd7795c097b42146db35cd9c5f95ed20c4b.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Crawford, PA; Erie, PA |
| Headline | Flash Flood Warning issued August 8 at 8:38PM EDT until August 9 at 12:30AM EDT by NWS Cleveland OH |
| Expires | 2026-08-09T00:30:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
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 Erie?
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 188 scientific monitoring sources.