This alert expired on 8 August 2026 at 23:00 UTC. It is kept here as a record.
It is the 6th strongest of the 31 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: Severe Thunderstorm Warning issued August 8 at 6:50PM EDT until August 8 at 7:00PM EDT by NWS Cleveland OH
Nearby, since 17 March 2026
- June 6, 2026 · score 22 · 7.1 km
- July 3, 2026 · score 22 · 10.5 km
- June 6, 2026 · score 22 · 11.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 61 % 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 | 61% |
| Coordinates | 41.5838, -79.8113 |
| Nearest City | Erie (65 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-08T22:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.05945de342a9532c4d762daf4ba75386 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Crawford, PA; Warren, PA; Mercer, PA |
| Headline | Severe Thunderstorm Warning issued August 8 at 6:50PM EDT until August 8 at 7:00PM EDT by NWS Cleveland OH |
| Expires | 2026-08-08T19:00:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.05945de342a9532c4d762daf4ba7538644856b79.001.1","noaa_urn:oid:2.49.0.1.840.0.341b55abe76d4403a75313fab0aa77d632dff378.001.1","noaa_urn:oid:2.49.0.1.840.0.222e168bc728fbeefde6e31d9722b51ed3e48333.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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.