This alert expired on 17 July 2026 at 20:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 28 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 17 at 4:25PM EDT until July 17 at 4:45PM EDT by NWS Peachtree City GA
An estimated 1,845,010 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 16, 2026 · score 76 · 2.1 km
- July 27, 2026 · score 46 · 11.1 km
- July 17, 2026 · score 52 · 11.7 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 80 % 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 33.6811, -84.1511 |
| Nearest City | Stonecrest (4 km) |
| Population Exposed | 1.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-17T20:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.718f533f7b85cc33180462cd22fde5e8 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Henry, GA; Rockdale, GA; DeKalb, GA; Gwinnett, GA |
| Headline | Severe Thunderstorm Warning issued July 17 at 4:25PM EDT until July 17 at 4:45PM EDT by NWS Peachtree City GA |
| Expires | 2026-07-17T16:45:00-04:00 |
| SenderName | NWS Peachtree City GA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.718f533f7b85cc33180462cd22fde5e850045490.002.1","noaa_urn:oid:2.49.0.1.840.0.97c3bb1699b0ba622dd7a2cc52c1facab7812170.001.1"] |
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 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 Stonecrest?
Calamity.live data shows a weather event with CalamityScore 52/100, near Stonecrest (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.