This alert expired on 18 July 2026 at 20:15 UTC. It is kept here as a record.
It is the 8th strongest of the 134 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 24 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 3:48PM EDT until July 18 at 4:15PM EDT by NWS Wakefield VA
An estimated 3,201,008 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 18, 2026 · score 52 · 3.2 km
- June 22, 2026 · score 76 · 3.4 km
- March 17, 2026 · score 52 · 3.8 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 80 % 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 | 80% |
| Coordinates | 38.5577, -77.1180 |
| Nearest City | Cherry Hill (13 km) |
| Population Exposed | 3.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T19:48:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c23e3094f5f21160631d7559e408618a |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Charles City, VA; Chesterfield, VA; Dinwiddie, VA; Hanover, VA; Henrico, VA; King William, VA; Prince George, VA; City of Colonial Heights, VA; City of Hopewell, VA; City of Petersburg, VA; City of Richmond, VA; Brunswick, VA; Montgomery, MD; Fauquier, VA; Loudoun, VA; Prince William, VA and 9 more areas |
| Headline | Severe Thunderstorm Warning issued July 18 at 3:48PM EDT until July 18 at 4:15PM EDT by NWS Wakefield VA |
| Expires | 2026-07-18T16:15:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c23e3094f5f21160631d7559e408618a870c5899.002.1","noaa_urn:oid:2.49.0.1.840.0.9c6cecd202aeefe4015ea20acc8395ed35b4aac3.001.1","noaa_urn:oid:2.49.0.1.840.0.6423d854b5591ccda52550a54aaa6aaad1e24dde.001.1","noaa_urn:oid:2.49.0.1.840.0.aba8cc5ffc86a9fcd7d8bd3535b983686366f987.001.1","noaa_urn:oid:2.49.0.1.840.0.fc7492812613ebd04e1ffe6069e16141b69954f1.001.1","noaa_urn:oid:2.49.0.1.840.0.f7e91227af96d095364a075165ab9a1e75d51807.001.1","noaa_urn:oid:2.49.0.1.840.0.a81f4396d04148c712a33a0d2619aa7f8ddbdfa6.001.1","noaa_urn:oid:2.49.0.1.840.0.6f09d7253eccad964e9d43727c902e8b58dd707a.001.1","noaa_urn:oid:2.49.0.1.840.0.935129be73f4d8184c8c6ddb532bfa0c05d302b6.001.1","noaa_urn:oid:2.49.0.1.840.0.fc8f976d0fdc3db4e20c7cbe3fe13b00b97d6409.001.1","noaa_urn:oid:2.49.0.1.840.0.1f3b89a4d29335425a41a14660180200e9a9e8f9.002.1","noaa_urn:oid:2.49.0.1.840.0.a6e995a9abaf09133a39a23a8d449fc9ef1c12f6.002.1","noaa_urn:oid:2.49.0.1.840.0.21feaacdf08bccc03353ba2b61209ea90c47274c.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 52/100, near Cherry Hill (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.