State · United States · USGS · BOR · USACE · CDEC

Oklahoma

65.7% average fill

Measured

Data pending

Volume stored

12,842 hm³

Measured capacity

19,551 hm³

Critical

Low level

Below month average

37 of 48

Loading map…

Drought Monitor · 13 October 2026

Weekly map · area in each category

Drought status

95.2%

of the area in drought (D1 or worse)

Worst category: D4 exceptional drought

down 1.5 points on the week

D0 4.8%D1 15.6%D2 35.8%D3 27.2%D4 16.6%

Severe or worse (D2+)

79.6%

Extreme or worse (D3+)

43.8%

DSCI

3350–500

People in drought

3.7 million

Reservoirs (reservoirs.earth)

65.7% full48 tracked

Reservoirs on drought ground

37 of 5033 in D2 or worse

As of the 13 October 2026 U.S. Drought Monitor map, 95.2% of Oklahoma was in drought (D1 or worse), with 43.8% in extreme or exceptional drought (D3–D4). The 48 reservoirs we track in Oklahoma were 65.7% full on their latest readings. 37 of 50 tracked reservoir sites sit inside the drought area, 33 of them in severe drought (D2) or worse.

The Drought Monitor maps where conditions are dry this week — rainfall, soil moisture, streamflow — not how much water is stored. Reservoir storage lags it by months, so a region can be in drought with full reservoirs, or out of drought with empty ones. Source: droughtmonitor.unl.edu. The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.

Reservoirs

Sorted by capacity

Eufaula Lake

78.8%2,249 hm³View →

Updated 2026-10-15· 94% of month avg· D3

Grand Lake o' the Cherokees

80.4%1,616 hm³View →

Updated 2026-10-14· 100% of month avg· D3

Pensacola (Grand Lake)

81.9%1,647 hm³View →

Updated 2026-09-09· 100% of month avg· D3

Tenkiller Lake

49.1%719 hm³View →

Updated 2026-10-15· 92% of month avg· D3

Fort Gibson Lake

low

35.5%490 hm³View →

Updated 2026-10-15· 98% of month avg· D2

Oologah Lake

51.9%656 hm³View →

Updated 2026-10-15· 109% of month avg· D2

Broken Bow Lake

86.5%979 hm³View →

Updated 2026-10-15· 99% of month avg

Keystone Lake

40.5%442 hm³View →

Updated 2026-10-15· 88% of month avg· D1

Kaw Lake

42.5%418 hm³View →

Updated 2026-10-15· 96% of month avg

RS Kerr LD15

71.0%460 hm³View →

Updated 2026-10-15· 84% of month avg

Lake Hudson near Locust Grove

53.3%262 hm³View →

Updated 2026-10-14· 100% of month avg· D2

Skiatook Lake

88.2%360 hm³View →

Updated 2026-10-15· 99% of month avg· D1

Sardis Lake

90.2%305 hm³View →

Updated 2026-10-15· 98% of month avg· D1

Wister Lake

critical

16.9%41 hm³View →

Updated 2026-10-15· 90% of month avg· D2

Waurika Lake

88.2%207 hm³View →

Updated 2026-10-15· 96% of month avg· D3

Webbers Falls LD16

64.2%135 hm³View →

Updated 2026-10-15· 79% of month avg· D3

Foss Reservoir

84.7%176 hm³View →

Updated 2026-10-14· 94% of month avg· D4

Hugo Lake

64.1%125 hm³View →

Updated 2026-10-15· 85% of month avg

Lake Thunderbird

76.7%113 hm³View →

Updated 2026-10-14· 91% of month avg· D3

Pine Creek Lake

critical

13.6%19 hm³View →

Updated 2026-10-15· 35% of month avg· D3

Mcgee Creek Reservoir

80.2%112 hm³View →

Updated 2026-10-14· 92% of month avg· D3

McGee Creek Reservoir

83.7%117 hm³View →

Updated 2026-09-23· 96% of month avg· D3

Canton Lake

72.0%99 hm³View →

Updated 2026-10-15· 87% of month avg· D4

Copan Lake

low

28.8%39 hm³View →

Updated 2026-09-09· 99% of month avg

Atoka Reservoir

91.1%123 hm³View →

Updated 2026-10-15· 97% of month avg· D2

Lake of the Arbuckles

64.4%87 hm³View →

Updated 2026-10-14· 101% of month avg· D1

Hulah Lake

critical

14.7%19 hm³View →

Updated 2026-10-15· 86% of month avg

Stanley Draper Lake

84.2%104 hm³View →

Updated 2026-10-15· 98% of month avg· D3

Tom Steed Reservoir

61.2%74 hm³View →

Updated 2026-10-14· 92% of month avg· D4

Fort Cobb Reservoir

78.1%77 hm³View →

Updated 2026-10-14· 94% of month avg· D3

Lake Eucha

72.5%71 hm³View →

Updated 2026-10-14· 89% of month avg· D3

Lake Hefner

84.6%78 hm³View →

Updated 2026-10-15· 97% of month avg· D3

Lake Ellsworth

low

22.8%17 hm³View →

Updated 2026-10-14· 33% of month avg· D3

Lake Lawtonka

78.7%53 hm³View →

Updated 2026-10-14· 92% of month avg· D3

Salina Pumpback

98.8%59 hm³View →

Updated 2026-09-09· 105% of month avg· D2

Spavinaw Lake

68.5%32 hm³View →

Updated 2026-10-14· 100% of month avg· D3

W.D. Mayo LD14

95.1%42 hm³View →

Updated 2026-10-15· 140% of month avg

Shawnee Reservoir

66.2%28 hm³View →

Updated 2026-10-14· 87% of month avg· D3

Lake Fuqua

57.2%24 hm³View →

Updated 2026-10-14· 102% of month avg· D3

Great Salt Plains Lake

64.1%25 hm³View →

Updated 2026-10-15· 80% of month avg

Arcadia Lake

105.0%42 hm³View →

Updated 2026-10-15· 104% of month avg

Newt Graham LD18

73.8%21 hm³View →

Updated 2026-10-15· 83% of month avg

Chouteau LD17

58.2%17 hm³View →

Updated 2026-10-15· 72% of month avg

Heyburn Lake

low

22.8%6 hm³View →

Updated 2026-10-15· 93% of month avg

Lake Humphreys

54.6%14 hm³View →

Updated 2026-10-14· 99% of month avg· D4

Birch Lake

81.1%19 hm³View →

Updated 2026-10-15· 101% of month avg

Lake Overholser

78.0%14 hm³View →

Updated 2026-10-15· 94% of month avg· D3

Fort Supply Lake

74.9%13 hm³View →

Updated 2026-10-15· 91% of month avg· D2

Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC) and, in Texas, the Texas Water Development Board. Fill % uses design capacity from the National Inventory of Dams where available; Water Data for Texas lakes use that board's conservation capacity; a few sites without a match fall back to the 5-year maximum. "% of month avg" compares the current fill with the reservoir’s own average for this calendar month over its readings on record. D0–D4 is the U.S. Drought Monitor category of the ground at the reservoir’s coordinates on the latest weekly map — local conditions, not storage.

Major reservoirs — data pending

⏳

2 major reservoirs — data sourcing in progress

Storage is monitored by the US Geological Survey (USGS NWIS) / the US Bureau of Reclamation (BOR RISE), but the live feed is currently stale — we are working to restore it. Known capacities: Lake Frederick (0.0 km³), Lake Altus (0.2 km³).

Lake Frederick

Sourcing

Capacity: 14 hm³⏳ Pending

Lake Altus

Sourcing

Capacity: 166 hm³⏳ Pending

About reservoirs in Oklahoma

As of October 15, 2026, the reservoirs we track across Oklahoma that report live levels hold roughly 12,842 hm³ of water — about 65.7% of their combined capacity. Taken together, Oklahoma's reservoirs are within their normal operating range.

Across the region, 3 reservoirs are at critically low levels and 4 are low. Arcadia Lake is the fullest at 105.0%, while Pine Creek Lake is the lowest at 13.6%.

Over the most recent week on record, 8 reservoirs rose and 3 reservoirs fell across Oklahoma.

Storage figures for Oklahoma come from USGS · USACE · BOR · CDEC; the most recent reading is from October 15, 2026. Each reservoir below links to its own page with full history and seasonal context.

Oklahoma at a glance

Reservoirs tracked: 48
Average fill: 65.7%
Water stored: 12,842 hm³
Combined capacity: 19,551 hm³
At critically low levels: 3
Fullest: Arcadia Lake (105.0%)
Lowest: Pine Creek Lake (13.6%)
Last updated: October 15, 2026

ShareX LinkedIn WhatsApp