Welcomed rain is on the way for us here in north Georgia later today, tonight, and tomorrow, with the approach of a shortwave. With pressure building down the east side of the Appalachian mountains, one of our normal CAD events will be setting up.
In the cooler times of the year when high pressure areas are to our north or northeast, many times the colder air will be forced down the mountains instead of traveling east to west over them, the cold air is basically blocked and can only go south. And therefore CAD stands for Cold Air Damming. What this means for us today is that our temperatures will remain about 15 degrees below normal for this time of year.
Showers will be building and the heaviest period will be tonight. The NWS has us down for an 80 percent chance of some pretty decent rains.
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