At this time the greatest threats with the strong to severe storms will be Hail from pea size up to quarter size, Strong Damaging winds to 50+ MPH, Heavy rains and frequent lightning. I will also add that there is a small chance of a Tornado due to variables with the approaching system and individual storm cells should they develop.
While the threat of a tornado is small, it can not be entirely ruled out. The reason for this is due to what may happen with the stronger storms [ See Link - Confirmed Tornado Lee County Alabama on May 13 2012 ]. While the best energy for Tornadoes will be to our north in Georgia and farther north, strong storms which will be coming through will be capable of spinning up quick small short lived tornadoes. I wont rule out a small tornado Thursday or Friday at some point and time in Alabama or Georgia.
At this time, it looks like Thunderstorms will increase Thursday Night, and there is the possibility some of them could be severe. Early Friday morning in the early AM hours there may still be some active storms around. Not as active as with day time heating, but still some could be strong.
On Friday as the day heats up, storms should get a little stronger by mid afternoon and continue into the night. The exact timing is not set in stone. Other factors will also be in play that may help storms begin earlier or later, be weaker or stronger, such as cloud cover and or atmosphere stabilization / destabilization from the earlier storms to our west.
Just a reminder ... Not everyone will see a severe storm. Not everyone will experience hail and high winds. Not everyone will see a Tornado. No one knows to pin point accuracy when and where any of this may happen during the event.
I'll have another update later.
