Lake Lanier - Lake Water Levels

Lake Water Levels

At the end of 2007, the water level of Lake Lanier became notable, on a daily basis, for setting record low levels, not seen in over 25 years. By early November, the water level was dropping a fifth of a foot (.06 m) per day (see table below), with the largest drop on November 9 of 0.26 ft (0.08 m) to 1054.08 ft (321.4 m).

The dropping water level slowed to 0.05 ft (0.02 m), as measured on November 17, 2007, after local rains continued and the water flow had been reduced at Buford Dam. However, water levels continued to decline almost daily during the month of December 2007 (see table below; December record low levels in bold-face font).

Water levels at Lake Lanier.

Day
Oct
2007
Nov
2007
Dec
2007
Jan
2008
1 1058.73 1055.46 1051.75 1051.31
2 1058.65 1055.36 1051.69 1051.29
3 1058.55 1055.28 1051.66 1051.28
4 1058.43 1055.19 1051.60 1051.28
5 1058.37 1054.99 1051.55 1051.27
6 1058.30 1054.80 1051.48 1051.27
7 1058.25 1054.55 1051.40 1051.26
8 1058.12 1054.34 1051.36 1051.19
9 1058.05 1054.08 1051.34 1051.21
10 1057.90 1053.99 1051.27 1051.18
11 1057.74 1053.93 1051.22 1051.25
12 1057.52 1053.71 1051.15 1051.28
13 1057.44 1053.52 1051.08 1051.28
14 1057.35 1083.29 1051.02 1051.27
15 1057.12 1053.07 1051.02 1051.26
16 1056.93 1052.87 1050.99 1051.33
17 1056.77 1052.82 1050.95 1051.31
18 1056.53 1052.76 1050.91 1051.37
19 1056.39 1052.62 1050.87 1051.38
20 1056.34 1052.49 1050.82 1051.41
21 1056.27 1052.33 1050.86 1051.38
22 1056.20 1052.23 1050.83 1051.42
23 1056.16 1052.12 1050.84 1051.47
24 1056.11 1052.07 1050.87 1051.44
25 1056.03 1052.02 1050.81 1051.42
26 1055.91 1052.01 1050.79 1051.42
27 1055.87 1051.97 1050.80 1051.42
28 1055.80 1051.91 1050.94 1051.41
29 1055.75 1051.86 1051.03 1051.41
30 1055.63 1051.81 1051.24 1051.47
31 1055.55 1051.32 1051.49

Further rains during November and December stabilized the water level at a low of 1,050.79 ft (320.3 m) on December 26, 2007, with the water level fluctuating up/down by about 0.03 ft (0.009 m) daily (see table at right). On December 27, the water level began rising above the record low level, but fluctuating every few days, as effected by further rain and snow during December and January 2008. By the end of December 2007, alone, the water level had risen over a half-foot (.3 m) to 1,051.32 ft (320.4 m), rising over 3 times faster than it had recently dropped, and reversing more than 18 days of losses within just 5 days (see table).

Finally, on February 18, 2008, the water level of Lake Lanier had risen back, above the record-low levels set in November, rising to 1,052.80 ft (320.89 m), even higher than the December 1981 level of 1,052.7 ft (320.9 m), effectively reversing and ending the record-low phase of the drought crisis. As of April 21, 2009, the lake had risen back to 1063.39 feet.

Multiple rain storms further to the south, along the Chattahoochee River to Apalachicola Bay, brought increased fresh water to the Florida wildlife in November and December 2007, despite the reduced water flow from Lake Lanier at Buford Dam. Rainfall along the Chattahoochee River was often greater than at Lake Lanier, spanning the much longer length of the river.

Metropolitan Atlanta received far above-average rainfall amounts throughout September and October 2009, and experienced record floods. On October 14th, 2009, Lake Lanier had risen back to above full pool at 1071.01 feet. The record high is 1,077.2 feet (328.3 m), set in April 1964.

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