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)

Subscribe to the RSS feed of daily Lake Lanier data RSS feed for Lake Lanier data

Hey, check out the nifty new graph!


Lake Lanier Georgia Statistics
Last Updated on 09-11-2026 at 2:05 PM

12:00 AM Pool Level

1065.1 MSL (down 0.72" since yesterday)

6:00 AM Pool Level

1065.1 MSL (down 0.6" since yesterday)

Full Pool Level

1071.00 MSL (-5.90' deficit at 12:00 AM)

Average 12:00 AM Level

1066.57 MSL (this day, past 67 years)

Next Record High

1.45' (1066.55 MSL on 2026-08-10)

Next Record Low

-0.84' (1064.26 MSL on 2026-01-09)

Inflow

112 CFS

Outflow

1201 CFS (-1,089 CFS deficit)

Power Generation

239 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 09-11-2026 at 2:05 PM

 

Cubic Feet Per Second

Gallons Per Second

Gallons Per Minute

Gallons Per Hour

Gallons Per Day

Inflow

112

837

50,269

3,016,145

72,387,490

Outflow

1201

8,984

539,046

32,342,773

776,226,573

Difference

-1,089

-8,146

-488,777

-29,326,628

-703,839,082


Lake Lanier Records
Last Updated on 09-11-2026 at 2:05 PM

 

Monthly

Yearly

Record

Last*

12:00 AM Full Pool High

1065.68 MSL on 2026-09-01

1066.8 MSL on 2026-06-20

1077.15 MSL on 1964-04-14

1065.16 MSL on 2026-09-10 (1 days ago)

12:00 AM Full Pool Low

1065.1 MSL on 2026-09-11

1064.26 MSL on 2026-01-09

1050.79 MSL on 2007-12-26

1065.06 MSL on 2026-01-11 (243 days ago)

6:00 AM Full Pool High

1065.69 MSL on 2026-09-01

1066.81 MSL on 2026-06-20

1077.17 MSL on 1964-04-14

1065.15 MSL on 2026-09-10 (1 days ago)

6:00 AM Full Pool Low

1065.1 MSL on 2026-09-11

1064.27 MSL on 2026-01-09

728 MSL on 2023-10-14

1064.37 MSL on 2026-01-10 (244 days ago)

Inflow Low

-572 CFS on 2026-09-09

-827 CFS on 2026-07-05

-2529 CFS on 2005-02-01

-60 CFS on 2026-09-10 (1 days ago)

Inflow High

1198 CFS on 2026-09-06

14207 CFS on 2026-01-11

56913 CFS on 1961-12-12

333 CFS on 2026-09-08 (3 days ago)

Outflow Low

654 CFS on 2026-09-06

608 CFS on 2026-05-16

-1733 CFS on 2019-08-05

654 CFS on 2026-09-06 (5 days ago)

Outflow High

1289 CFS on 2026-09-01

1723 CFS on 2026-03-19

9827 CFS on 1990-02-26

1211 CFS on 2026-09-10 (1 days ago)

Generation Low

230 MWH on 2026-09-02

99 MWH on 2026-01-26

0 MWH on 1960-07-01

230 MWH on 2026-09-02 (9 days ago)

Generation High

259 MWH on 2026-09-01

366 MWH on 2026-02-18

2554 MWH on 1990-02-26

242 MWH on 2026-09-10 (1 days ago)

Rainfall Low

0 Inches on 2026-09-01

0 Inches on 2026-01-01

-4 Inches on 2018-02-01

0 Inches on 2026-09-10 (1 days ago)

Rainfall High

0 Inches on 2026-09-11

2 Inches on 2026-05-07

5.9 Inches on 2000-08-02

1 Inches on 2026-07-25 (48 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



Copyright © 1999, 2008 J. C. Wren, All Rights Reserved.
Homepage: www.tinymicros.com E-Mail: jcwren@jcwren.com
Last modified: Monday, 14-Nov-2011 14:29:00 EST