Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 19 km from here.
This alert expired on 13 May 2026 at 20:00 UTC. It is kept here as a record.
It is the 13th strongest of the 65 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 13 at 3:44PM EDT until May 13 at 4:00PM EDT by NWS Pittsburgh PA
An estimated 49,441 people live within 50 km of this point.
Nearby, since 17 March 2026
- August 11, 2026 · score 43 · 12.8 km
- August 5, 2026 · score 28 · 14.6 km
- August 2, 2026 · score 28 · 15.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 84 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 84% |
| Coordinates | 39.8360, -79.9085 |
| Nearest City | Morgantown (23 km) |
| Population Exposed | 49.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-13T19:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ff01334559c152de039efe95661da80d |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Allegheny, PA; Fayette, PA; Westmoreland, PA; Marion, WV; Monongalia, WV; Preston, WV |
| Headline | Severe Thunderstorm Warning issued May 13 at 3:44PM EDT until May 13 at 4:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-05-13T16:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ff01334559c152de039efe95661da80d898e0aa1.002.1","noaa_urn:oid:2.49.0.1.840.0.09cbd397b9d4d22477aae373beb7acfb72730a0e.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 1 W Finleyville |
| Iem County | Washington |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | The hail lasted for 5 minutes. |
| MergedSources | [{"id":"iem_H_40.250_-80.020_1778699700000","source":"iem","severity":"low","severityValue":25,"timestamp":1778699700000,"latitude":40.25,"longitude":-80.02}] |
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 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.
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