Lake Lanier Georgia Statistics

Pertinent data for Lake Lanier (volumes, shoreline estimates, etc). Latest ACoE data and 5 week forecast (PDF).
ACoE graph of lake elevation for the last 365 days. Real-time water data for Buford Dam.
Graph of the lake elevation for the life of the project. More graphs and trivia.
Buford Dam water release info: 770-945-1466. Lake Lanier info: 770-945-1467.
How can inflow be negative? Answer here. ACF basin diagram (PDF)

With the exception of the values for the change in 12 AM and 6 AM levels, all lake
level values to the right of the decimal point are 100'ths of a foot.

Lake Allatoona data now available (full pool rule still needs work)

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Hey, check out the nifty new graph!

Lake Lanier Georgia Statistics Last Updated on 04-04-2026 at 9:05 AM
12:00 AM Pool Level	1066.02 MSL (down 0.12" since yesterday)
6:00 AM Pool Level	1066.02 MSL (down 0.12" since yesterday)
Full Pool Level	1070.13 MSL (-4.11' deficit at 12:00 AM)
Average 12:00 AM Level	1069.67 MSL (this day, past 66 years)
Next Record High	0.38' (1066.40 MSL on 2026-03-18)
Next Record Low	-0.33' (1065.69 MSL on 2026-02-25)
Inflow	672 CFS
Outflow	854 CFS (-182 CFS deficit)
Power Generation	213 MWH
Rainfall (6AM-6AM)	0.00 Inches
All data comes from the Army Corps of Engineers. Data is normally updated by the ACoE around 7:30 AM CST, this page at 9:05 AM EST MSL = Mean Sea Level, CFS = Cubic Feet per Second, MWH = Megawatt Hours

Flow Rate Conversions Last Updated on 04-04-2026 at 9:05 AM
	Cubic Feet Per Second	Gallons Per Second	Gallons Per Minute	Gallons Per Hour	Gallons Per Day
Inflow	672	5,026	301,614	18,096,872	434,324,943
Outflow	854	6,388	383,301	22,998,108	551,954,615
Difference	-182	-1,361	-81,687	-4,901,236	-117,629,672

Lake Lanier Records Last Updated on 04-04-2026 at 9:05 AM
	Monthly	Yearly	Record	Last*
12:00 AM Full Pool High	1066.04 MSL on 2026-04-01	1066.4 MSL on 2026-03-18	1077.15 MSL on 1964-04-14	1066.03 MSL on 2026-04-03 (1 days ago)
12:00 AM Full Pool Low	1066.02 MSL on 2026-04-02	1064.26 MSL on 2026-01-09	1050.79 MSL on 2007-12-26	1065.82 MSL on 2026-02-27 (36 days ago)
6:00 AM Full Pool High	1066.04 MSL on 2026-04-01	1066.42 MSL on 2026-03-17	1077.17 MSL on 1964-04-14	1066.03 MSL on 2026-04-03 (1 days ago)
6:00 AM Full Pool Low	1066.02 MSL on 2026-04-04	1064.27 MSL on 2026-01-09	728 MSL on 2023-10-14	1065.92 MSL on 2026-02-27 (36 days ago)
Inflow Low	438 CFS on 2026-04-02	142 CFS on 2026-03-10	-2529 CFS on 2005-02-01	438 CFS on 2026-04-02 (2 days ago)
Inflow High	1072 CFS on 2026-04-03	14207 CFS on 2026-01-11	56913 CFS on 1961-12-12	1072 CFS on 2026-04-03 (1 days ago)
Outflow Low	802 CFS on 2026-04-02	802 CFS on 2026-04-02	-1733 CFS on 2019-08-05	802 CFS on 2026-04-02 (2 days ago)
Outflow High	890 CFS on 2026-04-03	1723 CFS on 2026-03-19	9827 CFS on 1990-02-26	890 CFS on 2026-04-03 (1 days ago)
Generation Low	197 MWH on 2026-04-02	99 MWH on 2026-01-26	0 MWH on 1960-07-01	197 MWH on 2026-04-02 (2 days ago)
Generation High	220 MWH on 2026-04-03	366 MWH on 2026-02-18	2554 MWH on 1990-02-26	220 MWH on 2026-04-03 (1 days ago)
Rainfall Low	0 Inches on 2026-04-01	0 Inches on 2026-01-01	-4 Inches on 2018-02-01	0 Inches on 2026-04-03 (1 days ago)
Rainfall High	0 Inches on 2026-04-04	0 Inches on 2026-04-04	5.9 Inches on 2000-08-02	1 Inches on 2025-06-13 (295 days ago)
* 'Last' means the last date the item of interest was lower or higher than the value for today. Example: the current 6AM full pool level is 1070.00 on January 1st, 2007, and the lake level has been slowly lowering. If the last date the lake was at 1070.00 was exactly two years ago, January 1st, 2005 will be displayed. This display is not intuitive, so feel free to email jcwren@jcwren.com with any suggestions.
All data comes from the Army Corps of Engineers. Data is normally updated by the ACoE around 7:30 AM CST, this page at 9:05 AM EST MSL = Mean Sea Level, CFS = Cubic Feet per Second, MWH = Megawatt Hours