Lakefullness

Fort Supply Lake water level: Fort Supply Rippling deep blue lake water 1.1 ft low

Fort Supply Lake is 1.1 ft below full pool, about normal for early November. The Ft. Supply Lake gauge read 2,002.93 ft at 8:00 AM CST, November 4, 2026.

Check your dock

Source: U.S. Army Corps of Engineers, SWT district. Agency page.

How Fort Supply stands today

2001.5 2002 2002.5 2003 2003.5 2004 2004.5 2005 2005.5 2006 A year ago 2,004.84 ft Normal today 2,004.05 ft Full pool 2,004.00 ft Today 2,002.93 ft Feet above sea level (NGVD29)

The past year, day by day

The shaded band is where Fort Supply usually sits on each date: the middle 80% of years from 2015 to 2025. The blue line is the past 12 months; the sand line is the 12 months before. Hover or use the arrow keys to read any day.

  • Past 12 months
  • The 12 months before
  • Normal range (middle 80% of years)
  • Median
  • Full pool
2,003 2,004 2,005 2,006 2,007 DecJanFebMarAprMayJunJulAugSepOctNov Full pool 2,004.00 Today Year ago
2,003 2,004 2,005 2,006 2,007 DecFebAprJunAugOct Full pool 2,004.00 Today Year ago

Monthly average since 2014

2,0052,0102014201620182020202220242026
2,0052,01020142017202020232026
Readings for the last 30 days
DateLevel (ft)Normal (ft)
November 4, 20262,002.932,004.05
November 3, 20262,002.942,004.04
November 2, 20262,002.982,004.03
November 1, 20262,002.932,004.02
October 31, 20262,002.912,004.02
October 30, 20262,002.892,004.01
October 29, 20262,002.892,004.00
October 28, 20262,002.872,004.00
October 27, 20262,002.832,004.00
October 26, 20262,002.832,004.01
October 25, 20262,002.832,004.01
October 24, 20262,002.842,004.02
October 23, 20262,002.842,004.04
October 22, 20262,002.842,004.04
October 21, 20262,002.852,004.05
DateLevel (ft)Normal (ft)
October 20, 20262,002.862,004.05
October 19, 20262,002.872,004.05
October 18, 20262,002.872,004.05
October 17, 20262,002.862,004.04
October 16, 20262,002.862,004.03
October 15, 20262,002.892,004.02
October 14, 20262,002.902,004.02
October 13, 20262,002.912,004.01
October 12, 20262,002.932,004.00
October 11, 20262,002.942,003.99
October 10, 20262,002.942,003.97
October 9, 20262,002.962,003.96
October 8, 20262,002.962,003.94
October 7, 20262,002.972,003.92
October 6, 20262,002.982,003.91

Is the water above your dock?

Enter the elevation of your dock, ramp end or a mark on your shoreline, in feet above sea level (NGVD29, the datum the Army Corps of Engineers uses for this gauge). You will see how far the water is above or below it today, and how often it dipped below it in each month since 2016.

Today the lake is at 2,002.93 ft.

Typical Fort Supply Lake level by month since 2016
MonthLow year (10th %)MedianHigh year (90th %)Days above your mark
January 2,003.34 2,004.55 2,004.99 —
February 2,003.76 2,004.49 2,005.09 —
March 2,004.05 2,004.52 2,004.78 —
April 2,004.17 2,004.47 2,004.73 —
May 2,004.07 2,004.47 2,005.01 —
June 2,004.00 2,004.53 2,005.41 —
July 2,003.53 2,004.40 2,006.80 —
August 2,003.26 2,004.21 2,004.73 —
September 2,002.87 2,003.97 2,004.47 —
October 2,002.63 2,004.00 2,004.61 —
November 2,002.60 2,004.24 2,004.67 —
December 2,002.87 2,004.55 2,004.79 —

Other Oklahoma lakes, lowest first

Lake water surface
Open water
Oklahoma lakes ranked by how full they are
Lake Level (ft) Vs full pool For the date
Pine Creek Lake 425.64 25.4% full Much lower than usual
Lake Tenkiller 624.88 76.5% full Much lower than usual
McGee Creek Reservoir 570.61 78.7% full Much lower than usual
Wister Lake 474.08 56.9% full Much lower than usual
Lake Thunderbird 1,036.82 87.8% full Much lower than usual
Sardis Lake 597.26 91.2% full Much lower than usual
Grand Lake O’ the Cherokees 741.99 At pool Much lower than usual
Hugo Lake 400.34 60.9% full Much lower than usual
Broken Bow Lake 590.11 9.4 ft below Much lower than usual
Great Salt Plains Lake 1,124.60 At pool Much lower than usual
Canton Lake 1,610.75 68.4% full Lower than usual
Eufaula Lake 581.68 78.1% full Lower than usual
Fort Gibson Lake 554.32 At pool Lower than usual
Copan Lake 709.12 0.9 ft below Lower than usual

All 31 Oklahoma lakes →

Fort Supply questions

What is full pool at Fort Supply Lake?

Full pool at Fort Supply Lake is 2,004.00 ft above sea level today. The agency's own term for it is “top of conservation.”

Is Fort Supply Lake full right now?

No. It is 1.1 ft below full pool and holds 85.6% of its conservation storage.

Is Fort Supply Lake lower than normal for early November?

No, it is close to normal. The median level on Nov 4 across 2015–2025 is 2,004.05 ft, and today's 2,002.93 ft is −1.12 ft from it. In 8 of 10 years the level on this date fell between 2,002.80 and 2,004.77 ft.

How does Fort Supply Lake compare with last year?

A year ago, on November 4, 2025, it stood at 2,004.84 ft. It is 1.91 ft lower now.

What are the highest and lowest levels since 2014?

In the daily record we hold, which starts in 2014, the highest daily level was 2,014.89 ft on June 8, 2019 and the lowest was 2,002.39 ft on October 24, 2020.

How often is this page updated?

We pull new readings from the U.S. Army Corps of Engineers several times a day. This page was last rebuilt on Wed, 04 Nov 2026 15:13:17 UTC. Readings are provisional and can be revised by the agency.