This alert expired on 25 July 2026 at 15:00 UTC. It is kept here as a record.
It is the 29th strongest of the 57 detections recorded within 20 km of this point since 13 March 2026. The last comparable one was on 20 July 2026. 22 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 24 at 10:41PM EDT until July 25 at 8:00PM EDT by NWS Raleigh NC
An estimated 1,009,164 people live within 50 km of this point.
Nearby, since 13 March 2026
- July 8, 2026 · score 48 · 6.3 km
- August 3, 2026 · score 41 · 7.4 km
- July 8, 2026 · score 48 · 11.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 82 % 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) | 46 / 100 |
| Our confidence | 82% |
| Coordinates | 35.4914, -78.3300 |
| Nearest City | Clayton (21 km) |
| Population Exposed | 1.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-25T06:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.43e2ae3d773ff5ccb27b84bed7b49b2194360190.001.1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Johnston, NC |
| Headline | Flood Warning issued July 24 at 10:41PM EDT until July 25 at 8:00PM EDT by NWS Raleigh NC |
| Expires | 2026-07-25T11:00:00-04:00 |
| 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 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 46/100, near Clayton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.