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 08-05-2026 at 11:05 AM
12:00 AM Pool Level	1066.41 MSL (down 0.24" since yesterday)
6:00 AM Pool Level	1066.4 MSL (down 0.48" since yesterday)
Full Pool Level	1071.00 MSL (-4.59' deficit at 12:00 AM)
Average 12:00 AM Level	1068.29 MSL (this day, past 67 years)
Next Record High	0.21' (1066.62 MSL on 2026-07-25)
Next Record Low	-0.05' (1066.36 MSL on 2026-08-02)
Inflow	875 CFS
Outflow	1239 CFS (-364 CFS deficit)
Power Generation	246 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 08-05-2026 at 11:05 AM
	Cubic Feet Per Second	Gallons Per Second	Gallons Per Minute	Gallons Per Hour	Gallons Per Day
Inflow	875	6,545	392,727	23,563,636	565,527,270
Outflow	1239	9,268	556,101	33,366,108	800,786,614
Difference	-364	-2,722	-163,374	-9,802,472	-235,259,344

Lake Lanier Records Last Updated on 08-05-2026 at 11:05 AM
	Monthly	Yearly	Record	Last*
12:00 AM Full Pool High	1066.43 MSL on 2026-08-04	1066.8 MSL on 2026-06-20	1077.15 MSL on 1964-04-14	1066.43 MSL on 2026-08-04 (1 days ago)
12:00 AM Full Pool Low	1066.36 MSL on 2026-08-02	1064.26 MSL on 2026-01-09	1050.79 MSL on 2007-12-26	1066.36 MSL on 2026-08-02 (3 days ago)
6:00 AM Full Pool High	1066.44 MSL on 2026-08-04	1066.81 MSL on 2026-06-20	1077.17 MSL on 1964-04-14	1066.44 MSL on 2026-08-04 (1 days ago)
6:00 AM Full Pool Low	1066.38 MSL on 2026-08-02	1064.27 MSL on 2026-01-09	728 MSL on 2023-10-14	1066.38 MSL on 2026-08-02 (3 days ago)
Inflow Low	284 CFS on 2026-08-02	-827 CFS on 2026-07-05	-2529 CFS on 2005-02-01	284 CFS on 2026-08-02 (3 days ago)
Inflow High	2491 CFS on 2026-08-03	14207 CFS on 2026-01-11	56913 CFS on 1961-12-12	1246 CFS on 2026-08-04 (1 days ago)
Outflow Low	1194 CFS on 2026-08-02	608 CFS on 2026-05-16	-1733 CFS on 2019-08-05	1217 CFS on 2026-08-03 (2 days ago)
Outflow High	1246 CFS on 2026-08-04	1723 CFS on 2026-03-19	9827 CFS on 1990-02-26	1246 CFS on 2026-08-04 (1 days ago)
Generation Low	240 MWH on 2026-08-02	99 MWH on 2026-01-26	0 MWH on 1960-07-01	241 MWH on 2026-08-03 (2 days ago)
Generation High	248 MWH on 2026-08-04	366 MWH on 2026-02-18	2554 MWH on 1990-02-26	248 MWH on 2026-08-04 (1 days ago)
Rainfall Low	0 Inches on 2026-08-01	0 Inches on 2026-01-01	-4 Inches on 2018-02-01	0 Inches on 2026-08-04 (1 days ago)
Rainfall High	0 Inches on 2026-08-05	2 Inches on 2026-05-07	5.9 Inches on 2000-08-02	1 Inches on 2026-07-25 (11 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