Right now
The most recent data we hold from NOAA arrived 11 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
13 other detections within 20 km in the last 24 hours, the nearest 18 km from here.
This alert expired on 21 July 2026 at 21:00 UTC. It is kept here as a record.
No stronger detection stands among the 149 recorded within 20 km of this point since 16 March 2026 — 2 others scored the same. 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: Tornado Warning issued July 21 at 4:41PM EDT until July 21 at 5:00PM EDT by NWS Pittsburgh PA
An estimated 65,593 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 10, 2026 · score 39 · 4.4 km
- June 20, 2026 · score 39 · 5.3 km
- June 21, 2026 · score 39 · 5.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 63 out of 100, at 79 % 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 | Critical |
| Calamity Score (ours) | 63 / 100 |
| Our confidence | 79% |
| Coordinates | 39.4300, -80.3570 |
| Nearest City | Clarksburg (17 km) |
| Population Exposed | 65.6K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-07-21T20:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.6908790d8118632f4b98ec7fd192a1a6 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Preston, WV; Washington, OH; Doddridge, WV; Pleasants, WV; Ritchie, WV; Tyler, WV |
| Headline | Tornado Warning issued July 21 at 4:41PM EDT until July 21 at 5:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-07-21T17:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6908790d8118632f4b98ec7fd192a1a60802dfca.002.1","noaa_urn:oid:2.49.0.1.840.0.297755a87abd9d6b6be73f072f460f04d539edbc.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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.
Want to know when something happens near Clarksburg?
Calamity.live data shows a weather event with CalamityScore 63/100, near Clarksburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.