Severe weather in United States
This alert expired on 21 July 2026 at 23:15 UTC. It is kept here as a record.
It is the 37th strongest of the 49 detections recorded within 20 km of this point since 16 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 July 21 at 7:06PM EDT until July 21 at 7:15PM EDT by NWS Wakefield VA
Nearby, since 16 March 2026
- June 15, 2026 · score 22 · 13.9 km
- March 16, 2026 · score 22 · 16.3 km
- June 13, 2026 · score 22 · 17.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 59 % 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) | 16 / 100 |
| Our confidence | 59% |
| Coordinates | 37.8062, -76.3523 |
| Nearest City | Williamsburg (67 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-21T23:06:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3a1c233edab27d23280734b9665b8675120c17eb.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lancaster, VA; Northumberland, VA |
| Headline | Severe Thunderstorm Warning issued July 21 at 7:06PM EDT until July 21 at 7:15PM EDT by NWS Wakefield VA |
| Expires | 2026-07-21T19:15:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
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 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.