This alert expired on 5 July 2026 at 22:31 UTC. It is kept here as a record.
It is the 10th strongest of the 158 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 5 at 6:22PM EDT until July 5 at 6:30PM EDT by NWS Baltimore MD/Washington DC
An estimated 1,495,833 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 17, 2026 · score 52 · 2.8 km
- March 16, 2026 · score 52 · 8.5 km
- March 12, 2026 · score 52 · 9.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Our confidence | 78% |
| Coordinates | 39.1684, -77.5741 |
| Nearest City | Leesburg (6 km) |
| Population Exposed | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T22:22:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.74b2a5812e70a6a118db243afc0bc5a5 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Culpeper, VA; Orange, VA; Spotsylvania, VA; Hanover, VA; Henrico, VA; City of Richmond, VA; Carroll, MD; Howard, MD; Montgomery, MD and 3 more areas |
| Headline | Severe Thunderstorm Warning issued July 5 at 6:22PM EDT until July 5 at 6:30PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-07-05T18:31:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.74b2a5812e70a6a118db243afc0bc5a5d5664891.001.1","noaa_urn:oid:2.49.0.1.840.0.b7687bd09783bc9187c91d9bba5b259e1d17894a.001.1","noaa_urn:oid:2.49.0.1.840.0.7193a1496f5824f59597fe45bbbd6c0a444d7a26.001.1","noaa_urn:oid:2.49.0.1.840.0.1be5f27eb78a4cf2928a123677887dad65cf05db.001.1","noaa_urn:oid:2.49.0.1.840.0.e6e37e4296a328803385da00d1472c67e8f79ca8.001.1","noaa_urn:oid:2.49.0.1.840.0.933e434faa329a67606517be89420a82d0d676b3.001.1"] |
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 52/100, near Leesburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.