This alert expired on 23 July 2026 at 08:45 UTC. It is kept here as a record.
It is the 4th strongest of the 84 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 23 at 12:53AM EDT until July 23 at 4:45AM EDT by NWS Raleigh NC
An estimated 760,887 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 17, 2026 · score 48 · 1.8 km
- March 17, 2026 · score 48 · 9.9 km
- March 16, 2026 · score 72 · 11.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 81 % 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) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 36.0200, -80.3205 |
| Nearest City | Clemmons (5 km) |
| Population Exposed | 760.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-23T04:53:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d3bc9ee195b82780d758bab5773ce327d9b29fd6.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Davidson, NC; Forsyth, NC; Guilford, NC; Randolph, NC |
| Headline | Flash Flood Warning issued July 23 at 12:53AM EDT until July 23 at 4:45AM EDT by NWS Raleigh NC |
| Expires | 2026-07-23T04:45:00-04:00 |
| SenderName | NWS Raleigh NC |
| 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 near Clemmons?
Calamity.live data shows a weather event with CalamityScore 48/100, near Clemmons (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.