This alert expired on 8 August 2026 at 00:00 UTC. It is kept here as a record.
It is the 112th strongest of the 191 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 3 August 2026. 18 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 7:20PM EDT until August 7 at 8:00PM EDT by NWS Wakefield VA
An estimated 192,197 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 23, 2026 · score 43 · 5.5 km
- July 28, 2026 · score 43 · 6.9 km
- July 18, 2026 · score 43 · 8.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 78 % 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) | 37 / 100 |
| Our confidence | 78% |
| Coordinates | 38.4025, -76.5997 |
| Nearest City | St. Charles (36 km) |
| Population Exposed | 192.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T23:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.17c82ca0dd5a9a5b54da87c996298fc5 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Caroline, VA; Essex, VA; Hanover, VA; King and Queen, VA; King William, VA; Caroline, MD; Queen Anne's, MD |
| Headline | Severe Thunderstorm Warning issued August 7 at 7:20PM EDT until August 7 at 8:00PM EDT by NWS Wakefield VA |
| Expires | 2026-08-07T20:00:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.17c82ca0dd5a9a5b54da87c996298fc56b975393.001.1","noaa_urn:oid:2.49.0.1.840.0.fbe18f9ccf771f2acd457a16924d5158ec379c79.002.1"] |
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 37/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.