Stephen, also, this is what downslopping does for us. When the wind is coming over the mountains the cold is not only delayed, but we have a downslopping effect. Basically, as the air falls down from the mountains, the moisture gets wringed out by the mountains and dries out. It also compresses and heats up. N Al and GA aren't affected nearly as much due to the orientation of the typical flow, and the surrounding mountains aren't nearly as high so they can still get in on some action. The map webber posted shows this well. Cold west of the mountains and over the mountains, then the cold anomalies end abruptly in the leeside, and you even see a switch to warm anomalies. The cold is able to wrap around the apps to the south some, which is why you can see the cold around the South of ATL. Ain't winter fun in SC?