Alpharetta, GA Tornado History — 103 Tornadoes Since 1950
How many tornadoes has Alpharetta, GA had?
Alpharetta has had 103 tornadoes on record within 25 miles since 1950, including 8 violent (EF3+) tornadoes.
When was the most recent tornado near Alpharetta?
The most recent tornado within 25 miles of Alpharetta was an EF0 on May 20, 2025.
When is tornado season in Alpharetta?
April is historically the peak month for tornadoes near Alpharetta, with 26 on record. Spring through early summer (April–June) generally sees the highest activity across most of the central and southern United States.
At a Glance
Recent Tornado Activity Near Alpharetta
The last 20 years of confirmed tornadoes within 25 miles — 31 total, averaging 1.6 per year over this window.
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Casualties on Record Near Alpharetta
16 fatalities have been recorded within 25 miles of Alpharetta since 1950, across 7 events. 413 injuries have been reported across all events. 1974 was the deadliest year on record.
The deadliest single event was a F4 on April 3, 1974, which caused 6 fatalities along a 17.7-mile track.
Notable Tornadoes Near Alpharetta
About Tornadoes in Alpharetta
This overview was written August 10, 2026. The tornado counts and notable-event figures elsewhere on this page reflect the latest data and may differ from this summary.
North Georgia's Piedmont, where rolling terrain begins rising toward the southern Appalachians, lies in the seasonal collision zone between warm, humid air streaming north from the Gulf of Mexico and cold fronts driven south by a vigorous jet stream — a pairing that makes the region a reliable breeding ground for supercell thunderstorms. Alpharetta, on the high ground north of Atlanta, shares fully in that exposure. Tornado threats here concentrate in late winter and spring, when strong upper-level winds overspread an unstable airmass, though autumn systems have struck the area as well. The NOAA Storm Prediction Center's database anchors the local record.
That record spans generations. An F2 tornado tracked 46.8 miles across the area on April 15, 1956. During the Super Outbreak of April 3 and 4, 1974, an F2 killed a person and injured 20, and an F4 followed the next day, killing 6 people and injuring 30. An F3 on March 24, 1975 injured 152 people and killed 3. The next generation faced an F4 that carved a 20-mile track on November 22, 1992, injuring 46. Another F4 on March 27, 1994 killed 3 people along a 49-mile path. In the modern era, an EF2 crossed the area on March 15, 2008, claiming a life and injuring 30, and an EF0 touchdown on May 21, 2025 carried the threat into the present generation.