This alert expired on 7 August 2026 at 23:00 UTC. It is kept here as a record.
It is the 16th strongest of the 54 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 27 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 6:18PM EDT until August 7 at 7:00PM EDT by NWS Mount Holly NJ
An estimated 385,118 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 8, 2026 · score 43 · 4.6 km
- June 12, 2026 · score 43 · 5.0 km
- March 16, 2026 · score 43 · 6.7 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 89 % 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) | 43 / 100 |
| Our confidence | 89% |
| Coordinates | 38.4888, -77.7731 |
| Nearest City | Culpeper (20 km) |
| Population Exposed | 385.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T22:18:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.330c5c727c5dc41c2230cb4464b10d41 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kent, MD; Queen Anne's, MD; Montgomery, MD; Fairfax, VA; Loudoun, VA; Rockingham, VA; Pendleton, WV and 1 more areas |
| Headline | Severe Thunderstorm Warning issued August 7 at 6:18PM EDT until August 7 at 7:00PM EDT by NWS Mount Holly NJ |
| Expires | 2026-08-07T19:00:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.330c5c727c5dc41c2230cb4464b10d41a5cb2c2c.001.1","noaa_urn:oid:2.49.0.1.840.0.93beaed6b465529fe3bf59b7f26dd82e8085e919.001.1","noaa_urn:oid:2.49.0.1.840.0.bb80670d01644e749feae981f5920f00c8f38e25.001.1","noaa_urn:oid:2.49.0.1.840.0.0b3cf46c27563c6c3d514bf3a350baba7e65589f.001.1"] |
| Iem TypeSummary | D |
| Iem City | 2 WSW Gordonsville |
| Iem County | Albemarle |
| Iem State | VA |
| Iem Wfo | LWX |
| Iem Remark | Tree down at the intersection of Gordonsville Rd. and Logon Ln. |
| MergedSources | [{"id":"iem_D_38.100_-78.330_1786127100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786127100000,"latitude":38.1,"longitude":-78.33},{"id":"iem_D_38.120_-78.220_1786128000000","source":"iem","severity":"low","severityValue":25,"timestamp":1786128000000,"latitude":38.12,"longitude":-78.22}] |
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 43/100, near Culpeper (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.