Hail in Forsyth County, Georgia

Several reports of large hail were received from the public across the central and southern portions of Forsyth county from Cumming southwest to near the Fulton county line, including Brookwood and Big Creek. Golf ball-sized hail was reported in the Brookwood and Big Creek areas, with penny to nickel-sized hail around Cumming.

Strong northwest flow, a result of an unseasonably deep polar vortex over the northeast U.S. and southeast Canada, combined with several short waves embedded within the northwest flow aloft, to lead to a two-day outbreak of severe thunderstorms. This was the most significant bout of severe weather north and central Georgia had experienced since mid-April with an almost complete lack of severe weather in May, normally a very active month. The activity peaked during the afternoon and evening hours, but lingered well overnight on the 11th into the early morning hours of the 12th. Most of these thunderstorms affected central and east central Georgia. More widespread severe thunderstorms were observed on the 12th, including much of the Atlanta metropolitan area. A number of the storms produced large hail, while a lesser amount produced damaging downburst winds.