This alert expired on 16 March 2026 at 11:15 UTC. It is kept here as a record.
It is the 3rd strongest of the 22 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 6:37AM EDT until March 16 at 7:15AM EDT by NWS Peachtree City GA
An estimated 1,617,889 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 16, 2026 · score 52 · 8.7 km
- July 27, 2026 · score 46 · 15.4 km
- August 5, 2026 · score 46 · 16.8 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 88 % 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 | 88% |
| Coordinates | 33.7938, -83.9798 |
| Nearest City | Snellville (8 km) |
| Population Exposed | 1.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T10:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.af5eaf930bb90fd54516c752af629823 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chattahoochee, GA; Harris, GA; Lamar, GA; Marion, GA; Meriwether, GA; Muscogee, GA; Pike, GA; Talbot, GA; Upson, GA; Banks, GA; Barrow, GA; Clayton, GA; DeKalb, GA; Forsyth, GA; Gwinnett, GA; Hall, GA; Henry, GA; Jackson, GA; Rockdale, GA; Walton, GA; Butts, GA; Fayette, GA; Henry, GA; Lamar, GA; Meriwether, GA; Newton, GA; Pike, GA; Spalding, GA and 5 more areas |
| Headline | Severe Thunderstorm Warning issued March 16 at 6:37AM EDT until March 16 at 7:15AM EDT by NWS Peachtree City GA |
| Expires | 2026-03-16T07:15:00-04:00 |
| SenderName | NWS Peachtree City GA |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.af5eaf930bb90fd54516c752af62982388f384f2.001.1","noaa_urn:oid:2.49.0.1.840.0.3cfca5f181db37633e91d45d040890c0cb52d442.001.1","noaa_urn:oid:2.49.0.1.840.0.57dd7ee8bb6cd9fa64c49f9e921b3de1e106c380.001.1","noaa_urn:oid:2.49.0.1.840.0.d4273a4aabbbaee3987f03a1ba1bd1c47c57af66.001.1","noaa_urn:oid:2.49.0.1.840.0.52ec19541dbfb19f598ba3d3e483f5fe687371d7.001.1","noaa_urn:oid:2.49.0.1.840.0.55620c61bbfd5e8e5650f2cba8c03c9ab621bb2b.001.1","noaa_urn:oid:2.49.0.1.840.0.2ae888fc78380e5357ffb6f6ac2b8d899ecfafec.001.1","noaa_urn:oid:2.49.0.1.840.0.d743435ea7148f7d17769349a1b7095b03c0add5.001.1"] |
| Iem TypeSummary | D |
| Iem City | 3 WSW Peachtree City |
| Iem County | Coweta |
| Iem State | GA |
| Iem Wfo | FFC |
| Iem Remark | EM reports tree down WY 154 just north of Lower Fayette Rd in Sharpsburg. |
| Google News RssFeed | weather |
| Google News SourceName | Atlanta News First |
| MergedSources | [{"id":"iem_D_34.170_-84.570_1773652500000","source":"iem","severity":"low","severityValue":25,"timestamp":1773652500000,"latitude":34.17,"longitude":-84.57},{"id":"iem_D_33.990_-84.350_1773654000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773654000000,"latitude":33.99,"longitude":-84.35},{"id":"iem_D_34.120_-84.410_1773653700000","source":"iem","severity":"low","severityValue":25,"timestamp":1773653700000,"latitude":34.12,"longitude":-84.41},{"id":"iem_D_33.390_-84.620_1773654600000","source":"iem","severity":"low","severityValue":25,"timestamp":1773654600000,"latitude":33.39,"longitude":-84.62},{"id":"gnews_weather_492680_137","source":"google_news","severity":"medium","severityValue":40,"timestamp":1773651459000,"latitude":33.75,"longitude":-84.39},{"id":"gnews_weather_492677_140","source":"google_news","severity":"medium","severityValue":40,"timestamp":1773639120000,"latitude":33.75,"longitude":-84.39}] |
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 Snellville?
Calamity.live data shows a weather event with CalamityScore 52/100, near Snellville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.