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 20 km from here.
This alert expired on 13 May 2026 at 20:30 UTC. It is kept here as a record.
It is the 13th strongest of the 69 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 13 at 3:55PM EDT until May 13 at 4:30PM 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 · 13.4 km
- August 5, 2026 · score 28 · 16.6 km
- August 9, 2026 · score 43 · 16.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 83 % 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 | 83% |
| Coordinates | 39.8319, -79.8861 |
| Nearest City | Morgantown (23 km) |
| Population Exposed | 49.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-13T19:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0b4f41463267fa70e67ec7a322ee8663 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Marion, WV; Monongalia, WV; Preston, WV; Allegheny, PA; Fayette, PA; Westmoreland, PA |
| Headline | Severe Thunderstorm Warning issued May 13 at 3:55PM EDT until May 13 at 4:30PM EDT by NWS Pittsburgh PA |
| Expires | 2026-05-13T16:30:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0b4f41463267fa70e67ec7a322ee866397b6f2ee.001.1","noaa_urn:oid:2.49.0.1.840.0.ff01334559c152de039efe95661da80d898e0aa1.002.1"] |
| 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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