This alert expired on 28 August 2026 at 06:30 UTC. It is kept here as a record.
It is the 4th strongest of the 11 detections recorded within 20 km of this point since 12 June 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Flash Flood Warning issued August 27 at 9:48PM EDT until August 28 at 2:30AM EDT by NWS Blacksburg VA
An estimated 125,719 people live within 50 km of this point.
Nearby, since 12 June 2026
- July 22, 2026 · score 67 · 9.9 km
How we know
Confirmed by 26 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 91 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 91% |
| Coordinates | 37.8460, -79.2537 |
| Nearest City | Staunton (37 km) |
| Population Exposed | 125.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-28T01:48:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.a52b211218d13d208e51baed32fd4d06 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Alleghany, VA; Bath, VA; Albemarle, VA; Nelson, VA |
| Headline | Flash Flood Warning issued August 27 at 9:48PM EDT until August 28 at 2:30AM EDT by NWS Blacksburg VA |
| Expires | 2026-08-28T02:30:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a52b211218d13d208e51baed32fd4d06dd06fb6a.001.1","noaa_urn:oid:2.49.0.1.840.0.cf43dc80c7967f1109fe88cb699833c6151aaa45.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 1 ENE Alberene |
| Spc County | Albemarle |
| Spc State | VA |
| Spc Comments | Trees down at the intersection of Plank Rd and Secretarys Sand Rd (LWX) |
| Iem TypeSummary | D |
| Iem City | 2 W Bridgewater |
| Iem County | Rockingham |
| Iem State | VA |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
Series begins 8 March 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.