A strong cold front will move across north and central Georgia Thursday. This will bring two waves of thunderstorms to the region beginning late tonight and into Thursday. In addition, strong gradient winds will occur ahead of the cold front with the strongest winds across north Georgia. The extent and timing is still uncertain due to the timing and modeled available ingredients (instability, shear, etc).
An area of showers and thunderstorms, currently over Arkansas and Louisiana, is expected to move into western Georgia between 2 AM and 5 AM. This area will continue to spread across the rest of north and central Georgia through Thursday morning. The greatest instability will be across central Georgia where isolated strong to severe storms are possible, generally south of a line from Hamilton to Forsyth to Louisville. This area of showers and thunderstorms will move east and out of the region between noon and 2 pm Thursday afternoon.
However as this area of thunderstorms is moving out of the region, a line of thunderstorms is expected to develop along the cold front as it moves into western Georgia. This line of storms is expected to spread across all of north and central Georgia for the rest of the afternoon and early evening, finally moving out of the region by 10 PM. Anywhere along this line could see an isolated strong to severe storm.
– Damaging winds
– Isolated tornadoes embedded within the line of storms
– Frequent lightning
Rainfall amounts of 0.5 to 1.5 inches are expected across north and central Georgia, however, isolated 2 to 3 inches are possible across the western parts of central Georgia. With recent heavy rainfall, although still in a drought, we are in a period of recovery. Many areas can manage this amount of rainfall, but isolated flash flooding can not be ruled out.
Wind Advisory for Thursday:
The Wind Advisory remains in effect for 8 AM to 8 PM Thursday for north Georgia. Some areas in the higher elevations of the mountains could see gusts around 45 mph while elsewhere gusts of 30 to 35 MPH will be common throughout the day.