I can't say whether they're affected in the same way as we are in Atlanta, but it is a very different watershed/drainage basin. Our two main lakes are Lake Allatoona, on the Etowah River to the northwest of ATL, and Lake Lanier, on the Chattahoochee River to our northeast. The Etowah goes west through Alabama and ends up in the Mobile River, emptying into the Gulf at Mobile, AL. The Chattahoochee flows down the AL/GA state line and across Florida, emptying into the Gulf at Apalachicola, FL. The Tennessee River, conversely, flows the opposite direction, ultimately going north through Kentucky and into the Ohio River.
Here's a wikipedia map of the Tennessee River (which flows through Lake Guntersville) and its basin:
The diagonal lines traced by the east end of the river, as well as the parallel line just east of that where TN meets NC is along the Appalachian ridge. Given the general west-to-east flow of national weather patterns, I'd wager that the rainfall on one side of the ridge is likely very different from the levels on the other side.
(map credits located at
http://en.wikipedia.org/wiki/Image:Tenn ... ershed.png)
Chattahoochee River map at:
http://en.wikipedia.org/wiki/Chattahoochee_River
Etowah/Coosa/Alabama/Mobile River map at:
http://en.wikipedia.org/wiki/Coosa_River
Bill Eason -- Atlanta, GA
Got my Malahini plans Christmas 2007! (The book arrived Jan 3...)
Found the 1957 Thompson Sea Lancer Jan 9... :-/ Bought it Jan 21!
(OK OK I took the bait!!!!!) 
