This alert expired on 11 June 2026 at 02:45 UTC. It is kept here as a record.
It is the 89th strongest of the 169 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 10 June 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 10 at 9:06PM EDT until June 10 at 10:45PM EDT by NWS Blacksburg VA
Nearby, since 16 March 2026
- June 10, 2026 · score 16 · 2.9 km
- June 13, 2026 · score 43 · 6.1 km
- June 12, 2026 · score 43 · 6.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 60 % 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) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 36.5064, -80.5021 |
| Nearest City | Winston-Salem (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-11T01:06:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.56483112d45fc841ba291207730fa69c5b390935.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Surry, NC |
| Headline | Flash Flood Warning issued June 10 at 9:06PM EDT until June 10 at 10:45PM EDT by NWS Blacksburg VA |
| Expires | 2026-06-10T22:45:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
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 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.