This alert expired on 7 August 2026 at 22:30 UTC. It is kept here as a record.
It is the 38th strongest of the 61 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 6:02PM EDT until August 7 at 6:30PM EDT by NWS Baltimore MD/Washington DC
An estimated 59,911 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 27, 2026 · score 45 · 5.7 km
- August 8, 2026 · score 34 · 9.1 km
- July 18, 2026 · score 39 · 9.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 79 % 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) | 39 / 100 |
| Our confidence | 79% |
| Coordinates | 38.8577, -78.1794 |
| Nearest City | Front Royal (7 km) |
| Population Exposed | 59.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T22:02:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.bb80670d01644e749feae981f5920f00 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Rockingham, VA; Pendleton, WV; Montgomery, MD; Fairfax, VA; Loudoun, VA |
| Headline | Severe Thunderstorm Warning issued August 7 at 6:02PM EDT until August 7 at 6:30PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-08-07T18:30:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bb80670d01644e749feae981f5920f00c8f38e25.001.1","noaa_urn:oid:2.49.0.1.840.0.93beaed6b465529fe3bf59b7f26dd82e8085e919.001.1"] |
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 39/100, near Front Royal (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.