A potent low pressure and strong cold front will combine forces over the next 24 hours to bring us both a flood threat and severe weather threat. Here's a breakdown of what we can expect:
Rain will expand in coverage overnight tonight. A few storms will be possible, but it will be mostly a persistent rain overnight. We could pick up 2-3 inches of rain in the mountains JUST DURING THE OVERNIGHT tonight. Low elevations areas could get 1-2 inches by the morning.
The cold front will approach midday through middle afternoon, and that's when we expect some strong storms to develop. There will be a risk of damaging winds and even tornadoes, but anything we'd see should be isolated. There will be a lot of turning of the winds with height, which could cause strong storms and tornadoes, but the instability (energy for storms) will be fairly low. This will probably keep us from seeing much severe weather. We'll be watching for it all day and will keep you posted.
Rain totals could exceed 4-5 inches in the mountains, while 1-3 inches will be possible in the Upstate and northeast GA (lower elevations).
We should dry out by late day Tuesday, but clouds will likely linger through much of Wednesday. It will be cooler behind the front, with overnight lows back into the 50s area-wide and highs in the 70s through the rest of the week.