This alert expired on 10 August 2026 at 21:00 UTC. It is kept here as a record.
It is the 7th strongest of the 206 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 10 at 4:21PM EDT until August 10 at 5:00PM EDT by NWS Wakefield VA
An estimated 4,038,951 people live within 50 km of this point.
Nearby, since 11 March 2026
- March 17, 2026 · score 52 · 4.1 km
- July 9, 2026 · score 52 · 7.3 km
- March 12, 2026 · score 52 · 7.6 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 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) | 52 / 100 |
| Our confidence | 79% |
| Coordinates | 39.2440, -77.1925 |
| Nearest City | Damascus (5 km) |
| Population Exposed | 4.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T20:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.cb62310e1c4d283b81489b3a8dff15bd |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cumberland, VA; Fluvanna, VA; Goochland, VA; Hanover, VA; Louisa, VA; Powhatan, VA; Augusta, VA; Rockingham, VA; City of Staunton, VA; City of Waynesboro, VA; Baltimore, MD; Carroll, MD; Howard, MD and 10 more areas |
| Headline | Severe Thunderstorm Warning issued August 10 at 4:21PM EDT until August 10 at 5:00PM EDT by NWS Wakefield VA |
| Expires | 2026-08-10T17:00:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cb62310e1c4d283b81489b3a8dff15bd3f531f8a.001.1","noaa_urn:oid:2.49.0.1.840.0.ca7bdc654d4662b5372b3c470bcc0aa3de9453e3.002.1","noaa_urn:oid:2.49.0.1.840.0.9773de75d375bf72c89e41b85cd0e11bf2c1edef.001.1","noaa_urn:oid:2.49.0.1.840.0.d18090bb177374aea140021f70fc9d2f965646ee.001.1","noaa_urn:oid:2.49.0.1.840.0.1b917de414e3bf900da8f6a3e67cd524756d5dfc.001.1","noaa_urn:oid:2.49.0.1.840.0.d26df44dbbc5549fbf259cf33d49766c390625f9.001.1","noaa_urn:oid:2.49.0.1.840.0.6f1933e2761cfe03727f6e965c2164dd66f2dd52.001.1","noaa_urn:oid:2.49.0.1.840.0.8e65a1d3f90be24f2936eb4e3b384f360bba8008.001.1","noaa_urn:oid:2.49.0.1.840.0.e1a446ead06926d61cff9d193be2b14d7bc80b2f.001.1","noaa_urn:oid:2.49.0.1.840.0.9282533a09d067a010b519b332e17e06971de7db.002.1","noaa_urn:oid:2.49.0.1.840.0.dd3baece5e6e09efe9257555d881f5a3c40c82b9.002.1","noaa_urn:oid:2.49.0.1.840.0.8b632bec7bea6a85bd11a57b60a52408ce5677a3.001.1","noaa_urn:oid:2.49.0.1.840.0.e0e70c4801be0e2816741bbb412aae932d0a70ca.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 Damascus (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.