Right now
The most recent data we hold from NOAA arrived 13 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
3 other detections within 20 km in the last 24 hours, the nearest 15 km from here.
This alert expired on 20 May 2026 at 22:30 UTC. It is kept here as a record.
No stronger detection stands among the 55 recorded within 20 km of this point since 16 March 2026 — 8 others scored the same. 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 20 at 6:16PM EDT until May 20 at 6:30PM EDT by NWS Charleston WV
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % 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) | 22 / 100 |
| Our confidence | 70% |
| Coordinates | 38.4715, -80.7840 |
| Nearest City | Charleston (75 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-20T22:16:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ea24395566024e70f22dd485d286c0d0 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Randolph, WV; Upshur, WV; Braxton, WV; Webster, WV; Boone, WV; Kanawha, WV; Raleigh, WV |
| Headline | Severe Thunderstorm Warning issued May 20 at 6:16PM EDT until May 20 at 6:30PM EDT by NWS Charleston WV |
| Expires | 2026-05-20T18:30:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ea24395566024e70f22dd485d286c0d047cec2e0.002.1","noaa_urn:oid:2.49.0.1.840.0.b169e4ebdb440db901ce3662a581f8fffa948841.001.1","noaa_urn:oid:2.49.0.1.840.0.f86126036305f579ec18dab141acfacf33ec2803.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 1 N Sissonville |
| Iem County | Kanawha |
| Iem State | WV |
| Iem Wfo | RLX |
| Iem Remark | Social media video showing quarter size hail. |
| MergedSources | [{"id":"iem_H_38.470_-81.280_1779311880000","source":"iem","severity":"low","severityValue":25,"timestamp":1779311880000,"latitude":38.47,"longitude":-81.28},{"id":"iem_D_38.480_-81.380_1779311040000","source":"iem","severity":"low","severityValue":25,"timestamp":1779311040000,"latitude":38.48,"longitude":-81.38},{"id":"iem_D_38.320_-81.580_1779308940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779308940000,"latitude":38.32,"longitude":-81.58},{"id":"iem_H_38.520_-81.640_1779309900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779309900000,"latitude":38.52,"longitude":-81.64}] |
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.
Want to know when something happens in this area?
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 185 scientific monitoring sources.