Subject: January 2024 Most Probable 24-Month Study

The operation of Lake Powell and Lake Mead in the January 2024 24-Month Study is pursuant to the December 2007 Record of Decision on Colorado River

Interim Guidelines for Lower Basin Shortages and the Coordinated Operations of Lake Powell and Lake Mead (Interim Guidelines) and reflects the draft 2024 

Annual Operating Plan (AOP). Pursuant to the Interim Guidelines, the August 2023 24-Month Study projections of the January 1, 2024, system storage and

reservoir water surface elevations set the operational tier for the coordinated operation of Lake Powell and Lake Mead during 2024. 

The August 2023 24-Month study projected the January 1, 2024, Lake Powell elevation to be less than 3,575 feet and at or above 3,525 feet and the Lake Mead

elevation to be at or above 1,025 feet. Consistent with Section 6.C.1 of the Interim Guidelines the operational tier for Lake Powell in water year (WY) 2024 will be

the Mid-Elevation Release Tier and the water year release volume from Lake Powell will be 7.48 million acre-feet (maf). 

The 2022 Drought Response Operations Agreement (DROA) Plan1 for May 2022 through April 2023 was amended to suspend 2022 DROA Plan releases as of 

March 7, 2023. A total DROA release of approximately 463 thousand acre-feet (kaf) occurred under the 2022 DROA Plan. Reclamation will attempt to maximize

DROA recovery in the Upper Initial Units in WY 2023 and through April 2024. Reclamation will provide monthly DROA accounting, including DROA releases and

recovery, which can be found online at: https://www.usbr.gov/ColoradoRiverBasin/documents/dcp/DROA/DROSummarySheet.pdf. 

In May of 2023, the DROA Parties agreed to the 2023 DROA Plan. The 2023 DROA Plan does not include any DROA releases, but rather provides for recovery of

prior DROA releases from the units upstream of Powell.

Reclamation will continue to carefully monitor hydrologic and operational conditions and assess the need for additional responsive actions and/or changes to

operations. Reclamation will continue to consult with the Basin States, Basin Tribes, Mexico, and other partners on Colorado River operations to consider and

determine whether additional measures should be taken to further enhance the preservation of these benefits, as well as recovery protocols, including those of

future protective measures for both Lakes Powell and Mead. 

The August 2023 24-Month Study projected the January 1, 2024 Lake Mead elevation to be below 1,075 feet and above 1,050 feet. Consistent with Section 2.D.1

of the Interim Guidelines, a Shortage Condition consistent with Section 2.D.1.a will govern the operation of Lake Mead for calendar year (CY) 2024. In addition,

Section III.B of Exhibit 1 to the Lower Basin Drought Contingency Plan (DCP) Agreement will also govern the operation of Lake Mead for CY 2024. Lower Basin

projections for Lake Mead take into consideration updated water orders to reflect additional conservation efforts under the LC Conservation Program.

1 For more information: https://www.usbr.gov/uc/DocLibrary/Plans/20220429-2022DroughtResponseOperationsPlan-ApprovalMemo-508-DOI.pdf. 

To: All Annual Operating Plan Recipients

From: Noe Santos, P.E.

River Operations Manager

Boulder Canyon Operations Office

Interior Region 8: Lower Colorado Basin

 Email: nsantos@usbr.gov 

 

From: Alex Pivarnik

Supervisor, River Operations Group

Upper Colorado Operations Office

Interior Region 7: Upper Colorado Basin

 Email: apivarnik@usbr.gov 
The 2024 operational tier determinations for Lake Powell and Lake Mead will be documented in the 2024 AOP, which is currently in development.

Current runoff projections into Lake Powell are provided by the National Weather Service’s Colorado Basin River Forecast Center. The observed unregulated

inflow into Lake Powell for the month of December was 0.324 maf or 101% of the 30-year average from 1991 to 2020. The January 2024 unregulated inflow

forecast for Lake Powell is 0.315 maf or 94% of the 30-year average. The 2024 April through July unregulated inflow forecast for Lake Powell is 4.20 maf or 66%

of average. The WY 2024 unregulated inflow forecast for Lake Powell is 6.92 maf or 72% of average.

In this study, the CY 2024 diversion for Metropolitan Water District of Southern California (MWD) is projected to be 0.982 maf. The CY 2024 diversion for the

Central Arizona Project (CAP) is projected to be 0.791 maf. Consumptive use for Nevada above Hoover (SNWP Use) is projected to be 0.203 maf for CY 2023.

Due to changing Lake Mead elevations, Hoover’s generator capacity is adjusted based on estimated effective capacity and plant availability. The estimated

effective capacity is based on projected Lake Mead elevations. Unit capacity tests will be performed as the lake elevation changes. This study reflects these

changes in the projections.

Hoover, Davis, and Parker Dam historical gross energy figures come from Power, Operations, and Maintenance reports provided by the Lower Colorado Region’s

Power Office, Bureau of Reclamation, Boulder City, Nevada. Questions regarding these historical energy numbers can be directed to Rebecca Rogers at (702)

293-8091.
Runoff and inflow projections into upper basin reservoirs are provided by the National Weather Service’s Colorado Basin River Forecast Center and are as follows:

Reservoir Observed Inflow (kaf) Dec Inflow Forecast (kaf) Apr-Jul

Sep Oct Nov Dec %Avg Jan Feb Mar Apr-Jul %Avg

Lake Powell 224 324 380 324 101% 315 345 490 4200 66%

Fontenelle 50 53 45 35 109% 35 33 48 535 73%

Flaming Gorge 67 69 64 44 133% 48 50 95 675 70%

Blue Mesa 26 30 28 27 107% 23 21 34 490 77%

Morrow Point 27 31 29 28 105% 24 23 37 525 76%

Crystal 29 32 31 30 98% 27 26 41 575 75%

Taylor Park 5.5 6.1 5.1 4.8 106% 4.3 3.8 4.5 75 80%

Vallecito 8.7 6.3 3.6 3.5 61% 3.5 3.5 5 118 67%

Navajo 0.86 12.3 11.8 13.6 66% 14 18 42 375 60%

Lemon 1.77 0.94 0.56 0.5 50% 0.5 0.5 0.8 30 63%

McPhee 8.3 3.1 1.51 1.43 38% 2.5 3.3 9.6 145 57%

Ridgway 5.8 5.2 4.3 3.8 86% 3.5 3.3 4.5 69 75%

Deerlodge 8.2 18.9 24 26 115% 25 25 60 1030 87%

Durango 15 12.3 9.3 8.4 62% 9 8.5 14 265 69%

The draft 2024 AOP is available online at:

https://www.usbr.gov/lc/region/g4000/AOP2024/AOP24_draft.pdf.

The Interim Guidelines are available online at:

https://www.usbr.gov/lc/region/programs/strategies/RecordofDecision.pdf. 

The Colorado River DCPs are available online at:

https://www.usbr.gov/ColoradoRiverBasin/dcp/finaldocs.html. 

The Upper Basin DROA is online at:

https://www.usbr.gov/ColoradoRiverBasin/dcp/droa.html. 

The Upper Basin Hydrology Summary is available online at:

https://www.usbr.gov/uc/water/crsp/studies/24Month_01_ucb.pdf. 

Information on the LC Conservation Program is available online at: 

https://www.usbr.gov/lc/LCBConservation.html. 
Most Probable Inflow*

January 2024 24-Month Study

Fontenelle Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Live

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Regulated

Inflow

Date (1000 Ac-Ft)

Evap

Losses

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

Bypass

Release

(1000 Ac-Ft)

* Jan 2023 32 1 58 0 59 6481.53 167

H Feb 2023 28 0 10 43 53 6476.59 141

I Mar 2023 30 0 55 3 58 6470.02 113

S Apr 2023 75 1 61 0 61 6473.29 126

T May 2023 323 1 102 95 198 6494.66 250

O Jun 2023 413 2 92 269 361 6501.41 299

R Jul 2023 141 3 86 41 127 6502.91 310

I Aug 2023 74 2 71 3 74 6502.60 308

C Sep 2023 50 2 70 1 71 6499.60 285

WY 2023 1265 15 693 545 1238

A Oct 2023 53 1 65 3 68 6497.41 269

L Nov 2023 45 1 68 0 68 6494.04 246

* Dec 2023 35 1 72 0 72 6488.41 208

Jan 2024 35 1 72 0 72 6482.12 170

Feb 2024 33 1 68 0 68 6475.23 135

Mar 2024 48 0 71 0 71 6469.74 111

Apr 2024 65 1 35 20 55 6472.13 121

May 2024 110 1 92 0 92 6475.87 138

Jun 2024 260 2 89 0 89 6502.46 307

Jul 2024 100 3 101 3 104 6501.56 300

Aug 2024 55 2 92 0 92 6496.26 261

Sep 2024 40 2 70 0 70 6491.65 229

WY 2024 879 14 895 26 920

Oct 2024 45 1 0 55 55 6489.94 218

Nov 2024 42 1 0 56 56 6487.61 203

Dec 2024 32 1 20 40 60 6482.87 174

Jan 2025 31 1 60 0 60 6477.30 145

Feb 2025 29 0 54 0 54 6471.63 119

Mar 2025 51 0 51 0 51 6471.45 118

Apr 2025 77 1 38 10 48 6477.72 147

May 2025 166 1 92 0 92 6490.14 219

Jun 2025 301 2 105 128 233 6499.52 285

Jul 2025 146 3 101 5 106 6504.46 322

Aug 2025 59 2 73 0 73 6502.32 306

Sep 2025 39 2 65 0 65 6498.51 277

WY 2025 1018 15 660 295 955

Oct 2025 45 1 68 0 68 6495.19 254

Nov 2025 42 1 65 0 65 6491.68 229

Dec 2025 32 1 68 0 68 6486.06 193

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Flaming Gorge Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Live

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Evap

Losses

Date (1000 Ac-Ft)

Bank

Storage

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

Unreg

Inflow

(1000 Ac-Ft)

Jensen

Flow

(1000 Ac-Ft)

Bypass

Release

(1000 Ac-Ft)

Reg

Inflow

(1000 Ac-Ft)

* Jan 2023 38 65 2 108 0 108 95 6007.19 2497 143

H Feb 2023 33 58 2 98 0 98 93 6005.89 2457 134

I Mar 2023 49 77 3 61 5 66 93 6006.15 2465 119

S Apr 2023 188 181 4 48 0 48 98 6010.17 2589 403

T May 2023 521 397 7 49 0 49 111 6020.21 2917 1044

O Jun 2023 574 512 10 114 42 157 125 6029.59 3249 672

R Jul 2023 174 166 13 75 1 76 128 6031.49 3323 173

I Aug 2023 95 93 13 112 0 112 126 6030.69 3292 152

C Sep 2023 67 88 11 114 0 114 125 6029.77 3256 142

WY 2023 1847 1821 74 1099 48 1147 3391

A Oct 2023 69 84 7 100 0 100 124 6029.17 3233 137

L Nov 2023 64 85 4 89 0 89 124 6028.99 3226 126

* Dec 2023 44 81 2 131 0 131 122 6027.65 3177 164

Jan 2024 48 85 2 131 0 131 120 6026.36 3131 156

Feb 2024 50 85 2 123 0 123 118 6025.27 3092 148

Mar 2024 95 118 3 69 0 69 120 6026.52 3137 129

Apr 2024 100 90 5 67 0 67 121 6027.00 3154 242

May 2024 160 142 7 118 0 118 122 6027.46 3170 568

Jun 2024 300 129 10 95 0 95 123 6028.12 3194 445

Jul 2024 115 119 13 74 0 74 124 6028.95 3225 129

Aug 2024 65 102 13 74 0 74 124 6029.34 3240 89

Sep 2024 45 75 11 71 0 71 124 6029.15 3233 86

WY 2024 1155 1195 78 1142 0 1142 2419

Oct 2024 52 62 7 74 0 74 123 6028.68 3215 100

Nov 2024 51 65 3 71 0 71 123 6028.44 3206 103

Dec 2024 34 62 2 86 0 86 122 6027.76 3181 111

Jan 2025 42 71 2 86 0 86 121 6027.31 3165 111

Feb 2025 43 68 2 78 0 78 121 6027.00 3154 103

Mar 2025 85 85 3 81 0 81 121 6027.03 3155 155

Apr 2025 111 82 5 79 0 79 121 6027.00 3154 282

May 2025 239 165 7 198 0 198 119 6025.91 3115 711

Jun 2025 389 321 10 98 0 98 128 6031.41 3320 465

Jul 2025 161 121 14 76 0 76 129 6032.17 3350 136

Aug 2025 66 80 13 106 0 106 127 6031.23 3313 125

Sep 2025 43 69 11 104 0 104 126 6030.09 3268 117

WY 2025 1316 1253 79 1137 0 1137 2519

Oct 2025 52 75 7 74 0 74 125 6029.93 3262 100

Nov 2025 50 73 4 70 0 70 125 6029.92 3262 100

Dec 2025 34 70 2 105 0 105 124 6029.00 3227 130

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Taylor Park Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Live

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Regulated

Inflow

Date (1000 Ac-Ft)

* Jan 2023 4 5 9307.08 65

H Feb 2023 4 5 9306.26 64

I Mar 2023 4 5 9305.50 63

S Apr 2023 7 9 9304.30 61

T May 2023 39 20 9316.35 80

O Jun 2023 50 28 9328.01 102

R Jul 2023 22 26 9326.25 99

I Aug 2023 9 21 9319.91 87

C Sep 2023 6 15 9314.22 77

WY 2023 159 151

A Oct 2023 6 6 9314.04 77

L Nov 2023 5 6 9313.41 75

* Dec 2023 5 6 9312.49 74

Jan 2024 4 6 9311.10 72

Feb 2024 4 6 9310.06 70

Mar 2024 5 6 9309.26 69

Apr 2024 7 6 9309.85 70

May 2024 22 9 9317.73 83

Jun 2024 33 20 9324.83 96

Jul 2024 13 18 9321.95 91

Aug 2024 7 15 9317.33 82

Sep 2024 5 15 9311.52 72

WY 2024 116 120

Oct 2024 7 7 9311.57 72

Nov 2024 5 5 9311.54 72

Dec 2024 4 5 9310.77 71

Jan 2025 5 5 9310.64 71

Feb 2025 4 5 9310.14 70

Mar 2025 5 5 9310.02 70

Apr 2025 9 9 9310.02 70

May 2025 26 15 9316.62 81

Jun 2025 40 18 9328.37 103

Jul 2025 15 21 9325.32 97

Aug 2025 8 18 9319.99 87

Sep 2025 7 18 9313.69 76

WY 2025 135 131

Oct 2025 7 9 9312.49 74

Nov 2025 5 5 9312.46 74

Dec 2025 4 5 9312.09 73

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Blue Mesa Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Live

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Regulated

Inflow

Date (1000 Ac-Ft)

Evap

Losses

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

Bypass

Release

(1000 Ac-Ft)

UnReg

Inflow

(1000 Ac-Ft)

* Jan 2023 24 25 0 20 0 20 7447.43 295

H Feb 2023 20 21 0 20 0 20 7447.61 296

I Mar 2023 25 26 0 19 0 19 7448.79 303

S Apr 2023 77 79 1 23 0 23 7458.56 358

T May 2023 327 309 1 77 0 77 7491.44 589

O Jun 2023 312 290 1 106 6 131 7510.36 747

R Jul 2023 117 120 1 125 1 126 7509.50 739

I Aug 2023 49 61 1 105 0 105 7504.26 694

C Sep 2023 26 36 1 15 85 100 7496.50 629

WY 2023 1060 1052 8 517 170 706

A Oct 2023 30 30 1 30 33 63 7492.37 596

L Nov 2023 28 29 0 33 0 33 7491.85 592

* Dec 2023 25 26 0 40 0 40 7490.05 578

Jan 2024 23 25 0 32 0 32 7489.18 571

Feb 2024 21 23 0 28 0 28 7488.45 566

Mar 2024 34 35 0 33 0 33 7488.66 567

Apr 2024 55 54 1 56 0 56 7488.32 565

May 2024 170 157 1 141 0 141 7490.18 579

Jun 2024 200 187 1 54 0 54 7506.16 710

Jul 2024 65 70 2 85 0 85 7504.23 694

Aug 2024 46 54 1 85 0 85 7500.40 662

Sep 2024 31 41 1 81 0 81 7495.36 620

WY 2024 728 732 9 700 33 733

Oct 2024 36 36 1 59 0 59 7492.36 596

Nov 2024 30 30 0 27 0 27 7492.69 599

Dec 2024 26 27 0 40 0 40 7491.03 586

Jan 2025 25 25 0 31 0 31 7490.28 580

Feb 2025 23 24 0 27 0 27 7489.80 576

Mar 2025 38 38 0 34 0 34 7490.32 580

Apr 2025 78 78 1 48 0 48 7493.96 609

May 2025 204 193 1 156 0 156 7498.42 645

Jun 2025 251 229 1 84 0 84 7515.11 789

Jul 2025 86 92 2 105 0 105 7513.48 774

Aug 2025 55 65 1 109 0 109 7508.35 729

Sep 2025 35 46 1 103 0 103 7501.52 671

WY 2025 887 883 9 824 0 824

Oct 2025 36 38 1 86 0 86 7495.59 622

Nov 2025 31 31 0 34 0 34 7495.23 619

Dec 2025 26 27 0 62 0 62 7490.80 584

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Morrow Point Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Total

Release

(1000 Ac-Ft)

Blue Mesa

Release

Date (1000 Ac-Ft)

Side

Inflow

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

Bypass

Release

(1000 Ac-Ft)

Unreg

Inflow

(1000 Ac-Ft)

Live

Storage

(1000 Ac-Ft)

Total

Inflow

(1000 Ac-Ft)

* Jan 2023 26 20 2 21 20 0 20 7144.03 105

H Feb 2023 21 20 1 21 18 0 18 7148.07 108

I Mar 2023 26 19 2 21 19 0 19 7149.91 109

S Apr 2023 85 23 8 31 30 0 30 7151.54 110

T May 2023 364 77 37 114 112 0 112 7153.72 112

O Jun 2023 331 131 18 149 142 2 149 7153.53 112

R Jul 2023 121 126 4 130 130 0 130 7152.51 111

I Aug 2023 49 105 0 105 105 0 105 7152.17 111

C Sep 2023 27 100 1 100 102 0 102 7150.01 109

WY 2023 1136 706 76 782 780 2 787

A Oct 2023 31 63 1 64 68 0 68 7144.23 105

L Nov 2023 29 33 1 33 33 0 33 7145.52 106

* Dec 2023 26 40 1 41 36 0 36 7152.78 111

Jan 2024 24 32 1 33 32 0 32 7153.73 112

Feb 2024 23 28 2 30 30 0 30 7153.73 112

Mar 2024 37 33 3 36 36 0 36 7153.73 112

Apr 2024 60 56 5 61 61 0 61 7153.73 112

May 2024 182 141 12 153 153 0 153 7153.73 112

Jun 2024 215 54 15 69 69 0 69 7153.72 112

Jul 2024 68 85 3 88 88 0 88 7153.73 112

Aug 2024 48 85 2 87 87 0 87 7153.73 112

Sep 2024 33 81 2 83 83 0 83 7153.73 112

WY 2024 775 733 48 781 777 0 777

Oct 2024 37 59 1 60 60 0 60 7153.73 112

Nov 2024 31 27 1 28 28 0 28 7153.73 112

Dec 2024 27 40 1 41 41 0 41 7153.73 112

Jan 2025 26 31 1 32 32 0 32 7153.73 112

Feb 2025 25 27 2 29 29 0 29 7153.73 112

Mar 2025 40 34 2 36 36 0 36 7153.73 112

Apr 2025 89 48 11 59 59 0 59 7153.73 112

May 2025 226 156 22 178 178 0 178 7153.73 112

Jun 2025 265 84 14 98 98 0 98 7153.72 112

Jul 2025 90 105 4 109 109 0 109 7153.73 112

Aug 2025 56 109 1 110 110 0 110 7153.73 112

Sep 2025 36 103 1 104 104 0 104 7153.73 112

WY 2025 948 824 61 885 884 0 884

Oct 2025 37 86 1 87 87 0 87 7153.73 112

Nov 2025 32 34 1 35 35 0 35 7153.73 112

Dec 2025 27 62 1 63 63 0 63 7153.73 112

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Crystal Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Live

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Morrow

Release

Date (1000 Ac-Ft)

Total

Inflow

(1000 Ac-Ft)

Bypass

Release

(1000 Ac-Ft)

Below Tunnel

Flow

(1000 Ac-Ft)

Unreg

Inflow

(1000 Ac-Ft)

Tunnel

Flow

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

Side

Inflow

(1000 Ac-Ft)

* Jan 2023 28 20 2 22 22 0 22 6751.37 16 2 21

H Feb 2023 23 18 2 20 4 16 20 6751.71 17 1 19

I Mar 2023 29 19 2 22 0 22 22 6751.16 16 2 21

S Apr 2023 97 30 12 42 20 21 41 6752.29 17 19 22

T May 2023 406 112 42 154 108 41 155 6751.26 16 48 112

O Jun 2023 357 149 26 176 119 34 174 6757.16 18 63 125

R Jul 2023 128 130 7 137 117 20 138 6752.61 17 67 77

I Aug 2023 52 105 3 108 108 0 108 6751.75 17 66 45

C Sep 2023 29 102 2 104 104 0 104 6752.00 17 63 42

WY 2023 1243 787 106 894 698 167 893 374 547

A Oct 2023 32 68 1 69 32 39 70 6747.66 15 49 24

L Nov 2023 31 33 3 35 35 0 35 6747.08 15 14 20

* Dec 2023 29 36 3 39 38 0 38 6747.95 16 1 36

Jan 2024 27 32 3 35 34 0 34 6753.04 17 2 32

Feb 2024 26 30 3 33 33 0 33 6753.04 17 2 32

Mar 2024 41 36 4 40 40 0 40 6753.04 17 5 35

Apr 2024 68 61 8 69 69 0 69 6753.04 17 42 27

May 2024 200 153 18 171 134 37 171 6753.04 17 62 109

Jun 2024 235 69 20 89 89 0 89 6753.03 17 61 28

Jul 2024 72 88 4 92 92 0 92 6753.04 17 65 27

Aug 2024 53 87 5 92 92 0 92 6753.04 17 65 27

Sep 2024 36 83 3 86 86 0 86 6753.04 17 55 31

WY 2024 850 777 74 851 774 76 851 422 428

Oct 2024 43 60 6 66 56 10 66 6753.04 17 55 11

Nov 2024 35 28 4 32 32 0 32 6753.04 17 0 32

Dec 2024 32 41 5 46 46 0 46 6753.04 17 0 46

Jan 2025 31 32 5 37 37 0 37 6753.04 17 0 37

Feb 2025 29 29 4 33 33 0 33 6753.04 17 0 33

Mar 2025 46 36 6 42 42 0 42 6753.04 17 5 37

Apr 2025 100 59 11 70 70 0 70 6753.04 17 42 28

May 2025 251 178 25 203 134 68 203 6753.04 17 62 141

Jun 2025 293 98 28 126 126 0 126 6753.03 17 61 65

Jul 2025 98 109 8 117 117 0 117 6753.04 17 65 52

Aug 2025 63 110 7 117 117 0 117 6753.04 17 65 52

Sep 2025 42 104 6 110 110 0 110 6753.04 17 55 55

WY 2025 1063 884 115 999 920 78 999 410 589

Oct 2025 43 87 6 93 60 33 93 6753.04 17 49 44

Nov 2025 37 35 5 40 40 0 40 6753.04 17 49 0

Dec 2025 32 63 5 68 68 0 68 6753.04 17 1 67

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Vallecito Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Live

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Regulated

Inflow

Date (1000 Ac-Ft)

* Jan 2023 5 0 7643.44 72

H Feb 2023 5 2 7644.74 75

I Mar 2023 7 36 7630.44 46

S Apr 2023 36 45 7625.05 36

T May 2023 119 64 7651.55 91

O Jun 2023 75 41 7664.54 124

R Jul 2023 22 37 7658.55 108

I Aug 2023 11 38 7647.43 81

C Sep 2023 9 32 7636.60 57

WY 2023 314 299

A Oct 2023 6 9 7635.08 54

L Nov 2023 4 0 7636.68 57

* Dec 2023 4 0 7638.20 61

Jan 2024 4 2 7639.35 63

Feb 2024 4 1 7640.51 66

Mar 2024 5 2 7642.03 69

Apr 2024 13 1 7647.00 80

May 2024 50 31 7654.61 98

Jun 2024 42 43 7654.12 97

Jul 2024 13 41 7641.76 68

Aug 2024 10 38 7627.24 40

Sep 2024 10 29 7612.97 21

WY 2024 164 198

Oct 2024 13 16 7609.62 17

Nov 2024 8 0 7616.45 25

Dec 2024 7 0 7621.45 31

Jan 2025 6 0 7625.16 37

Feb 2025 5 0 7627.93 41

Mar 2025 10 0 7633.20 51

Apr 2025 23 1 7643.77 73

May 2025 68 31 7658.85 109

Jun 2025 62 49 7663.71 122

Jul 2025 21 42 7655.60 101

Aug 2025 15 38 7645.99 78

Sep 2025 16 30 7639.67 64

WY 2025 254 208

Oct 2025 13 17 7637.57 59

Nov 2025 9 1 7641.12 67

Dec 2025 7 2 7643.58 72

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Navajo Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Live

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Azotea

Tunnel Div

Date (1000 Ac-Ft)

Reg

Inflow

(1000 Ac-Ft)

Evap

Losses

(1000 Ac-Ft)

NIIP

Diversion

(1000 Ac-Ft)

Mod Unreg

Inflow

(1000 Ac-Ft)

Farmington

Flow

(1000 Ac-Ft)

* Jan 2023 20 0 15 0 0 20 6017.85 847 34

H Feb 2023 18 0 15 1 1 18 6017.38 843 31

I Mar 2023 71 0 98 1 3 18 6025.86 920 46

S Apr 2023 245 24 235 2 8 21 6045.83 1124 108

T May 2023 488 59 375 3 28 127 6063.70 1340 344

O Jun 2023 249 47 163 4 38 168 6060.10 1294 342

R Jul 2023 46 11 49 4 45 32 6057.46 1261 82

I Aug 2023 -3 1 23 3 42 42 6052.15 1196 45

C Sep 2023 1 0 24 3 25 46 6047.88 1147 47

WY 2023 1219 145 1059 24 195 565 1203

A Oct 2023 12 0 16 2 7 32 6045.70 1122 39

L Nov 2023 12 0 9 1 0 21 6044.53 1109 34

* Dec 2023 14 0 10 1 0 21 6043.54 1098 34

Jan 2024 14 0 11 1 0 19 6042.80 1090 28

Feb 2024 18 0 15 1 0 17 6042.56 1088 26

Mar 2024 42 2 36 1 5 19 6043.59 1099 33

Apr 2024 73 7 54 2 19 19 6044.88 1113 47

May 2024 185 24 142 3 31 18 6052.66 1202 121

Jun 2024 105 12 94 4 45 18 6054.83 1228 118

Jul 2024 12 0 40 4 49 33 6051.04 1183 67

Aug 2024 21 1 48 3 41 32 6048.58 1155 56

Sep 2024 28 1 46 2 22 30 6047.87 1147 50

WY 2024 536 48 522 25 219 278 653

Oct 2024 35 2 37 2 8 19 6048.62 1155 42

Nov 2024 29 1 21 1 0 18 6048.78 1157 35

Dec 2024 24 0 17 1 0 18 6048.63 1155 33

Jan 2025 22 0 16 1 0 18 6048.39 1153 31

Feb 2025 29 1 23 1 0 17 6048.91 1159 29

Mar 2025 92 10 72 1 5 18 6052.94 1206 41

Apr 2025 147 18 106 2 21 18 6058.30 1271 69

May 2025 251 34 180 4 35 18 6067.69 1394 153

Jun 2025 187 25 149 5 51 18 6073.10 1469 162

Jul 2025 33 2 51 5 55 26 6070.63 1434 77

Aug 2025 24 1 45 4 47 32 6067.95 1397 61

Sep 2025 31 2 43 3 26 84 6062.76 1328 110

WY 2025 904 96 762 28 248 304 843

Oct 2025 35 2 38 2 9 19 6063.36 1336 42

Nov 2025 30 1 22 1 0 18 6063.56 1338 36

Dec 2025 24 0 18 1 0 18 6063.51 1338 33

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Lake Powell

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Bank

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Regulated

Inflow

Date (1000 Ac-Ft)

Evap

Losses

(1000 Ac-Ft)

Bypass

Release

(1000 Ac-Ft)

Lees

Ferry Gage

(1000 Ac-Ft)

Unreg

Inflow

(1000 Ac-Ft)

EOM

Storage

(1000 Ac-Ft)

PowerPlant

Release

(1000 Ac-Ft)

* Jan 2023 361 424 4 500 0 501 3523.45 4490 5456 510

H Feb 2023 270 337 4 480 0 480 3521.04 4479 5320 493

I Mar 2023 573 552 6 486 0 486 3522.02 4484 5375 500

S Apr 2023 1399 1103 10 819 90 909 3524.99 4497 5544 929

T May 2023 4520 3634 15 1088 0 1088 3561.42 4685 7888 1107

O Jun 2023 3646 2916 31 1064 0 1064 3583.47 4820 9574 1082

R Jul 2023 1054 923 40 1149 0 1149 3580.42 4800 9328 1164

I Aug 2023 307 454 39 902 0 902 3574.71 4764 8878 908

C Sep 2023 224 414 35 474 0 474 3573.58 4757 8790 475

WY 2023 13421 12043 230 8491 90 8581 8730

A Oct 2023 324 432 24 480 0 480 3572.71 4752 8724 480

L Nov 2023 380 418 23 500 0 500 3571.43 4744 8626 509

* Dec 2023 324 418 18 600 0 600 3568.97 4729 8441 611

Jan 2024 315 410 5 723 0 723 3564.99 4705 8146 727

Feb 2024 345 424 6 639 0 639 3562.18 4689 7942 650

Mar 2024 490 447 9 675 0 675 3559.09 4672 7723 689

Apr 2024 600 540 15 601 0 601 3558.09 4666 7652 618

May 2024 1350 1168 18 599 0 599 3565.22 4707 8163 620

Jun 2024 1750 1370 30 628 0 628 3573.99 4759 8822 645

Jul 2024 500 548 37 709 0 709 3571.60 4745 8639 724

Aug 2024 260 361 36 758 0 758 3566.24 4713 8238 772

Sep 2024 280 381 32 567 0 567 3563.47 4697 8036 583

WY 2024 6918 6919 254 7480 0 7480 7628

Oct 2024 417 455 22 480 0 480 3562.87 4693 7992 496

Nov 2024 433 440 22 500 0 500 3561.82 4687 7917 505

Dec 2024 361 422 17 600 0 600 3559.28 4673 7736 603

Jan 2025 350 397 5 723 0 723 3554.88 4648 7429 727

Feb 2025 397 425 5 639 0 639 3551.90 4632 7226 650

Mar 2025 614 548 9 675 0 675 3550.03 4622 7100 689

Apr 2025 920 768 14 601 0 601 3552.14 4633 7242 618

May 2025 2060 1808 17 599 0 599 3567.69 4721 8345 620

Jun 2025 2423 1871 31 628 0 628 3582.15 4811 9467 645

Jul 2025 711 695 40 709 0 709 3581.54 4807 9418 724

Aug 2025 371 520 39 758 0 758 3578.33 4787 9161 772

Sep 2025 316 525 36 568 0 568 3577.41 4781 9088 584

WY 2025 9373 8874 257 7480 0 7480 7633

Oct 2025 417 483 25 480 0 480 3577.15 4779 9068 496

Nov 2025 450 471 24 500 0 500 3576.52 4775 9019 505

Dec 2025 361 462 19 600 0 600 3574.65 4764 8874 603

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Hoover Dam - Lake Mead

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Bank

Storage

(1000 Ac-Ft)

SNWP

Use

(1000 Ac-Ft)

Side Inflow

Glen to Hoover

Date (1000 Ac-Ft)

Evap

Losses

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Total

Release

(1000 CFS)

Glen

Release

(1000 Ac-Ft)

EOM

Storage

(1000 Ac-Ft)

Downstream

Requirements

(1000 Ac-Ft)

* Jan 2023 501 103 22 412 6.7 7 413 485 1046.97 7466

H Feb 2023 480 46 21 494 8.9 8 493 485 1047.02 7469

I Mar 2023 486 226 23 754 12.3 11 749 481 1046.03 7399

S Apr 2023 909 243 31 831 14.0 12 830 498 1049.69 7661

T May 2023 1088 185 40 855 13.9 22 772 520 1054.28 7995

O Jun 2023 1064 62 50 886 14.9 23 874 530 1056.39 8152

R Jul 2023 1149 61 48 760 12.4 30 758 553 1061.02 8501

I Aug 2023 902 112 54 580 9.4 25 580 574 1065.35 8834

C Sep 2023 474 126 53 492 8.3 16 462 577 1065.82 8871

WY 2023 8581 1340 458 7633 187 7518

A Oct 2023 480 31 50 487 7.9 14 520 574 1065.34 8833

L Nov 2023 500 41 44 533 9.0 8 532 571 1064.81 8792

* Dec 2023 600 74 36 362 5.9 6 360 588 1068.05 9045

Jan 2024 723 75 25 434 7.1 7 434 608 1071.98 9357

Feb 2024 639 71 23 566 9.8 6 566 615 1073.32 9465

Mar 2024 675 97 26 838 13.6 15 838 609 1072.07 9365

Apr 2024 601 60 34 1058 17.8 14 1058 582 1066.79 8947

May 2024 599 37 42 1035 16.8 24 1035 553 1061.14 8510

Jun 2024 628 22 50 928 15.6 29 928 531 1056.69 8174

Jul 2024 709 55 48 810 13.2 32 810 524 1055.10 8056

Aug 2024 758 86 52 741 12.0 26 741 525 1055.42 8080

Sep 2024 567 72 50 626 10.5 22 626 522 1054.67 8024

WY 2024 7480 718 480 8416 203 8447

Oct 2024 480 77 48 452 7.4 15 452 524 1055.20 8064

Nov 2024 500 63 42 563 9.5 7 563 521 1054.60 8019

Dec 2024 600 72 34 506 8.2 6 506 529 1056.19 8137

Jan 2025 723 75 24 523 8.5 11 523 544 1059.20 8362

Feb 2025 639 71 22 563 10.1 10 563 551 1060.61 8469

Mar 2025 675 97 24 833 13.5 17 833 544 1059.34 8373

Apr 2025 601 60 32 1034 17.4 17 1034 519 1054.04 7977

May 2025 599 37 40 1002 16.3 24 1002 492 1048.48 7573

Jun 2025 628 22 47 890 15.0 29 890 473 1044.29 7276

Jul 2025 709 55 45 772 12.6 31 772 468 1043.17 7197

Aug 2025 758 86 49 718 11.7 26 718 471 1043.85 7245

Sep 2025 568 72 48 622 10.5 23 622 468 1043.15 7196

WY 2025 7480 786 454 8477 217 8477

Oct 2025 480 77 45 453 7.4 18 453 470 1043.70 7234

Nov 2025 500 63 39 578 9.7 11 578 466 1042.82 7173

Dec 2025 600 72 32 517 8.4 11 517 473 1044.33 7279

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Davis Dam - Lake Mohave

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

EOM

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Side

Inflow

Date (1000 Ac-Ft)

Evap

Losses

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

Spill

Release

(1000 Ac-Ft)

Hoover

Release

(1000 Ac-Ft)

Total

Release

(1000 CFS)

* Jan 2023 412 2 9 347 0 347 5.6 642.12 1675

H Feb 2023 494 -18 8 444 0 444 8.0 643.00 1699

I Mar 2023 754 -6 10 705 0 705 11.5 644.17 1731

S Apr 2023 831 -11 13 844 0 844 14.2 642.84 1694

T May 2023 855 -10 14 859 0 859 14.0 641.83 1667

O Jun 2023 886 -15 14 819 0 819 13.8 643.22 1705

R Jul 2023 760 -15 12 736 0 736 12.0 643.06 1700

I Aug 2023 580 -14 16 555 0 555 9.0 642.86 1695

C Sep 2023 492 -7 16 563 0 578 9.7 638.85 1587

WY 2023 7633 -107 152 7365 0 7381

A Oct 2023 487 -1 14 547 0 547 8.9 635.96 1511

L Nov 2023 533 -18 13 397 0 397 6.7 639.94 1616

* Dec 2023 362 -5 13 334 0 334 5.4 640.34 1627

Jan 2024 434 -11 9 374 0 374 6.1 641.80 1666

Feb 2024 566 -13 8 540 0 540 9.4 642.00 1671

Mar 2024 838 -10 10 789 0 789 12.8 643.05 1700

Apr 2024 1058 -14 13 1033 0 1033 17.4 643.00 1699

May 2024 1035 -13 14 1008 0 1008 16.4 643.00 1699

Jun 2024 928 -21 14 893 0 893 15.0 643.00 1699

Jul 2024 810 -21 12 804 0 804 13.1 642.00 1671

Aug 2024 741 -17 15 708 0 708 11.5 642.00 1671

Sep 2024 626 -6 16 657 0 657 11.0 640.01 1617

WY 2024 8416 -149 152 8084 0 8084

Oct 2024 452 -11 14 610 0 610 9.9 633.00 1434

Nov 2024 563 -16 13 483 0 483 8.1 635.00 1486

Dec 2024 506 -2 13 373 0 373 6.1 639.51 1604

Jan 2025 523 -11 9 442 0 442 7.2 641.80 1666

Feb 2025 563 -13 8 543 0 543 9.8 641.80 1666

Mar 2025 833 -10 10 778 0 778 12.7 643.05 1700

Apr 2025 1034 -14 13 1009 0 1009 17.0 643.00 1699

May 2025 1002 -13 14 975 0 975 15.8 643.00 1699

Jun 2025 890 -21 14 856 0 856 14.4 643.00 1699

Jul 2025 772 -21 12 766 0 766 12.5 642.00 1671

Aug 2025 718 -17 15 686 0 686 11.1 642.00 1671

Sep 2025 622 -6 16 653 0 653 11.0 640.01 1617

WY 2025 8477 -154 151 8172 0 8172

Oct 2025 453 -11 14 611 0 611 9.9 633.00 1434

Nov 2025 578 -16 13 498 0 498 8.4 635.00 1486

Dec 2025 517 -2 13 384 0 384 6.3 639.51 1604

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Parker Dam - Lake Havasu

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

EOM

Storage

(1000 Ac-Ft)

Total

Release

(1000 Ac-Ft)

Evap

Losses

Date (1000 Ac-Ft)

CAP

Diversion

(1000 Ac-Ft)

MWD

Diversion

(1000 Ac-Ft)

Flow To

Mexico

(1000 CFS)

Davis

Release

(1000 Ac-Ft)

Flow To

Mexico

(1000 Ac-Ft)

Total

Release

(1000 CFS)

Side

Inflow

(1000 Ac-Ft)

* Jan 2023 347 16 6 261 4.2 54 40 447.14 564 125 2.0

H Feb 2023 444 1 8 370 6.7 16 40 447.47 570 130 2.3

I Mar 2023 705 39 9 553 9.0 70 91 448.31 586 168 2.7

S Apr 2023 844 51 11 669 11.2 49 169 447.68 574 153 2.6

T May 2023 859 31 13 655 10.7 73 166 446.26 547 135 2.2

O Jun 2023 819 16 15 636 10.7 70 69 448.25 585 130 2.2

R Jul 2023 736 17 17 634 10.3 70 22 448.36 587 131 2.1

I Aug 2023 555 22 17 485 7.9 61 19 447.78 576 105 1.7

C Sep 2023 578 13 15 462 7.8 43 55 448.12 582 123 2.1

WY 2023 7381 247 139 5730 816 867 1443

A Oct 2023 547 17 12 439 7.1 44 69 447.74 575 68 1.1

L Nov 2023 397 22 9 294 4.9 59 50 447.87 578 86 1.4

* Dec 2023 334 14 7 253 4.1 58 27 447.81 576 84 1.4

Jan 2024 374 7 6 291 4.7 56 47 446.50 552 105 1.7

Feb 2024 540 4 8 424 7.4 43 53 447.00 561 124 2.2

Mar 2024 789 2 9 648 10.5 6 126 446.70 555 162 2.6

Apr 2024 1033 7 11 737 12.4 75 169 448.70 593 150 2.5

May 2024 1008 4 13 746 12.1 71 170 448.70 593 126 2.0

Jun 2024 893 10 16 740 12.4 101 57 448.70 593 132 2.2

Jul 2024 804 17 17 702 11.4 106 21 448.00 580 134 2.2

Aug 2024 708 19 17 607 9.9 106 20 447.50 571 106 1.7

Sep 2024 657 12 15 525 8.8 103 40 447.50 570 98 1.6

WY 2024 8084 133 140 6407 828 851 1375

Oct 2024 610 21 12 489 8.0 106 51 447.50 571 83 1.4

Nov 2024 483 14 9 294 4.9 103 22 447.50 570 100 1.7

Dec 2024 373 17 7 214 3.5 106 15 446.50 552 98 1.6

Jan 2025 442 7 6 325 5.3 72 40 446.50 552 138 2.2

Feb 2025 543 4 8 421 7.6 68 44 446.50 552 124 2.2

Mar 2025 778 2 9 623 10.1 22 114 446.70 555 147 2.4

Apr 2025 1009 7 11 724 12.2 86 146 448.70 593 147 2.5

May 2025 975 4 13 724 11.8 84 147 448.70 593 110 1.8

Jun 2025 856 10 16 699 11.7 91 50 448.70 593 116 2.0

Jul 2025 766 17 17 656 10.7 94 18 448.00 580 123 2.0

Aug 2025 686 19 17 574 9.3 94 19 447.50 571 102 1.7

Sep 2025 653 12 15 493 8.3 91 56 447.50 570 99 1.7

WY 2025 8172 134 139 6236 1018 722 1387

Oct 2025 611 21 12 453 7.4 84 76 447.50 571 89 1.4

Nov 2025 498 14 9 372 6.2 81 46 447.50 570 115 1.9

Dec 2025 384 17 7 290 4.7 83 37 446.50 552 110 1.8

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Hoover Dam - Lake Mead

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Hoover

Gross Energy

MKWH

Hoover

Static Head

(Ft)

Power

Release

Date (1000 CFS)

Percent of 

Units

Available KWH/AF

Change In

Storage

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

EOM

Storage

(1000 Ac-Ft)

Hoover Gen

Capacity

MW

* Jan 2023 412 6.7 1046.97 7466 152 403.66 866.6 143.8 64 348.8

H Feb 2023 494 8.9 1047.02 7469 4 399.03 810.5 175.9 60 356.5

I Mar 2023 754 12.3 1046.03 7399 -70 397.62 863.6 270.4 65 358.8

S Apr 2023 831 14.0 1049.69 7661 262 402.80 839.3 300.5 65 361.7

T May 2023 855 13.9 1054.28 7995 335 405.85 986.6 313.1 71 366.3

O Jun 2023 886 14.9 1056.39 8152 156 407.42 1080.0 326.9 78 369.0

R Jul 2023 760 12.4 1061.02 8501 349 413.93 1283.0 280.8 90 369.5

I Aug 2023 580 9.4 1065.35 8834 333 420.26 1308.1 212.8 90 366.9

C Sep 2023 492 8.3 1065.82 8871 37 419.70 1160.0 181.4 79 368.4

WY 2023 7632 2759.0

A Oct 2023 487 7.9 1065.34 8833 -37 421.11 1037.5 180.9 71 371.7

L Nov 2023 533 9.0 1064.81 8792 -41 421.57 948.0 199.5 66 374.5

* Dec 2023 362 5.9 1068.05 9045 253 423.67 1063.1 133.1 72 367.6

Jan 2024 434 7.1 1071.98 9357 312 421.13 1023.0 162.1 69 374.0

Feb 2024 566 9.8 1073.32 9465 108 423.55 977.0 215.3 66 380.5

Mar 2024 838 13.6 1072.07 9365 -100 421.98 1151.1 323.8 77 386.4

Apr 2024 1058 17.8 1066.79 8947 -418 418.62 1093.0 406.3 76 384.1

May 2024 1035 16.8 1061.14 8510 -437 411.95 1242.0 384.1 88 371.0

Jun 2024 928 15.6 1056.69 8174 -336 406.21 1314.9 340.0 95 366.5

Jul 2024 810 13.2 1055.10 8056 -118 402.98 1399.4 294.6 100 363.6

Aug 2024 741 12.0 1055.42 8080 24 402.68 1399.4 266.6 100 360.0

Sep 2024 626 10.5 1054.67 8024 -56 403.11 1386.6 222.1 100 354.7

WY 2024 8416 3128.4

Oct 2024 452 7.4 1055.20 8064 39 409.50 830.0 166.4 60 367.7

Nov 2024 563 9.5 1054.60 8019 -45 411.75 830.0 208.1 60 369.8

Dec 2024 506 8.2 1056.19 8137 118 409.76 895.0 188.0 63 371.7

Jan 2025 523 8.5 1059.20 8362 225 409.86 907.9 189.6 63 362.4

Feb 2025 563 10.1 1060.61 8469 107 412.00 821.5 210.7 56 374.2

Mar 2025 833 13.5 1059.34 8373 -96 411.53 839.9 317.6 58 381.4

Apr 2025 1034 17.4 1054.04 7977 -396 404.11 1338.1 375.7 93 363.5

May 2025 1002 16.3 1048.48 7573 -404 399.44 1218.0 357.8 87 357.1

Jun 2025 890 15.0 1044.29 7276 -297 394.58 1174.6 315.4 87 354.3

Jul 2025 772 12.6 1043.17 7197 -79 390.94 1342.9 270.1 100 349.9

Aug 2025 718 11.7 1043.85 7245 48 391.05 1347.3 249.3 100 347.4

Sep 2025 622 10.5 1043.15 7196 -49 391.68 1342.7 217.5 100 349.6

WY 2025 8477 3066.1

Oct 2025 453 7.4 1043.70 7234 39 396.17 1048.6 160.6 78 354.4

Nov 2025 578 9.7 1042.82 7173 -61 398.71 990.1 206.0 74 356.3

Dec 2025 517 8.4 1044.33 7279 106 395.61 1165.4 184.8 86 357.3

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Davis Dam - Lake Mohave

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Davis

Gross Energy

MKWH

Davis

Static Head

(Ft)

Power

Release

Date (1000 CFS)

Percent of 

Units

Available KWH/AF

Change In

Storage

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

EOM

Storage

(1000 Ac-Ft)

Davis Gen

Capacity

MW

* Jan 2023 347 5.6 642.12 1675 58 143.26 157.9 44.3 62 127.7

H Feb 2023 444 8.0 643.00 1699 24 141.81 185.8 56.7 73 127.8

I Mar 2023 705 11.5 644.17 1731 32 141.44 215.5 93.4 85 132.4

S Apr 2023 844 14.2 642.84 1694 -36 138.90 255.0 108.3 100 128.3

T May 2023 859 14.0 641.83 1667 -28 137.48 255.0 109.4 100 127.4

O Jun 2023 819 13.8 643.22 1705 38 141.71 249.9 103.9 98 126.9

R Jul 2023 736 12.0 643.06 1700 -4 143.75 250.1 94.0 98 127.6

I Aug 2023 555 9.0 642.86 1695 -5 143.43 255.0 71.5 100 128.7

C Sep 2023 563 9.7 638.85 1587 -108 139.25 204.0 73.6 80 130.8

WY 2023 7365 938.3

A Oct 2023 547 8.9 635.96 1511 -76 132.98 189.2 67.1 74 122.7

L Nov 2023 397 6.7 639.94 1616 105 140.75 156.4 50.0 61 125.9

* Dec 2023 334 5.4 640.34 1627 11 141.24 167.8 41.8 66 125.5

Jan 2024 374 6.1 641.80 1666 39 140.94 157.9 47.5 62 127.0

Feb 2024 540 9.4 642.00 1671 5 140.30 185.8 68.2 73 126.4

Mar 2024 789 12.8 643.05 1700 29 139.56 215.5 99.2 85 125.7

Apr 2024 1033 17.4 643.00 1699 -2 138.49 255.0 128.9 100 124.8

May 2024 1008 16.4 643.00 1699 0 138.77 255.0 126.0 100 125.0

Jun 2024 893 15.0 643.00 1699 0 139.25 249.9 112.0 98 125.5

Jul 2024 804 13.1 642.00 1671 -27 139.44 250.1 101.0 98 125.6

Aug 2024 708 11.5 642.00 1671 0 139.53 241.8 89.1 95 125.7

Sep 2024 657 11.0 640.01 1617 -54 138.72 204.0 82.2 80 125.0

WY 2024 8084 1013.0

Oct 2024 610 9.9 633.00 1434 -183 134.68 189.2 74.1 74 121.3

Nov 2024 483 8.1 635.00 1486 51 132.95 156.4 57.8 61 119.8

Dec 2024 373 6.1 639.51 1604 118 137.14 167.8 46.1 66 123.5

Jan 2025 442 7.2 641.80 1666 62 140.02 164.5 55.7 65 126.1

Feb 2025 543 9.8 641.80 1666 0 140.04 200.5 68.5 79 126.2

Mar 2025 778 12.7 643.05 1700 34 139.53 210.6 97.8 83 125.7

Apr 2025 1009 17.0 643.00 1699 -2 138.62 255.0 126.0 100 124.9

May 2025 975 15.8 643.00 1699 0 138.96 255.0 122.0 100 125.2

Jun 2025 856 14.4 643.00 1699 0 139.47 255.0 107.5 100 125.7

Jul 2025 766 12.5 642.00 1671 -27 139.68 255.0 96.4 100 125.8

Aug 2025 686 11.1 642.00 1671 0 139.68 255.0 86.3 100 125.8

Sep 2025 653 11.0 640.01 1617 -54 138.75 255.0 81.7 100 125.0

WY 2025 8172 1019.8

Oct 2025 611 9.9 633.00 1434 -183 134.68 227.0 74.2 89 121.3

Nov 2025 498 8.4 635.00 1486 51 132.84 159.8 59.6 63 119.7

Dec 2025 384 6.3 639.51 1604 118 137.05 154.7 47.5 61 123.5

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Parker Dam - Lake Havasu

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir Elev

End of Month

(Ft)

Parker

Gross Energy

MKWH

Parker

Static Head

(Ft)

Power

Release

Date (1000 CFS)

Percent of 

Units

Available KWH/AF

Change In

Storage

(1000 Ac-Ft)

Power

Release

(1000 Ac-Ft)

EOM

Storage

(1000 Ac-Ft)

Parker Gen

Capacity

MW

* Jan 2023 261 4.2 447.14 564 2 81.41 72.6 17.3 60 66.4

H Feb 2023 357 6.7 447.47 570 6 81.43 94.3 25.4 79 71.2

I Mar 2023 553 9.0 448.31 586 16 81.24 120.0 38.6 100 69.8

S Apr 2023 669 11.2 447.68 574 -12 79.27 120.0 46.4 100 69.4

T May 2023 655 10.7 446.26 547 -26 78.52 116.1 45.3 97 69.2

O Jun 2023 636 10.7 448.25 585 37 79.10 120.0 44.0 100 69.2

R Jul 2023 634 10.3 448.36 587 2 82.12 120.0 44.1 100 69.6

I Aug 2023 485 7.9 447.78 576 -11 81.56 120.0 33.5 100 69.1

C Sep 2023 449 7.8 448.12 582 7 81.96 120.0 32.1 100 71.7

WY 2023 5703 395.3

A Oct 2023 439 7.1 447.74 575 -7 81.03 91.0 30.6 76 69.6

L Nov 2023 294 4.9 447.87 578 3 82.97 80.0 20.0 67 67.9

* Dec 2023 253 4.1 447.81 576 -1 82.94 60.0 16.6 50 65.7

Jan 2024 291 4.7 446.50 552 -25 80.55 65.8 19.7 55 67.6

Feb 2024 424 7.4 447.00 561 9 78.80 83.6 29.4 70 69.2

Mar 2024 648 10.5 446.70 555 -6 77.52 120.0 44.4 100 68.6

Apr 2024 737 12.4 448.70 593 38 77.65 120.0 51.1 100 69.4

May 2024 746 12.1 448.70 593 0 78.74 116.1 52.4 97 70.2

Jun 2024 740 12.4 448.70 593 0 78.63 120.0 51.9 100 70.1

Jul 2024 702 11.4 448.00 580 -13 78.66 120.0 49.0 100 69.7

Aug 2024 607 9.9 447.50 571 -10 78.69 120.0 42.2 100 69.5

Sep 2024 525 8.8 447.50 570 0 78.89 120.0 36.4 100 69.4

WY 2024 6407 443.6

Oct 2024 489 8.0 447.50 571 0 79.28 91.0 34.3 76 70.1

Nov 2024 294 4.9 447.50 570 0 80.78 80.0 20.4 67 69.2

Dec 2024 214 3.5 446.50 552 -19 81.10 60.0 13.7 50 64.0

Jan 2025 325 5.3 446.50 552 0 79.60 73.5 21.7 61 66.8

Feb 2025 421 7.6 446.50 552 0 78.46 96.2 29.0 80 68.9

Mar 2025 623 10.1 446.70 555 4 77.43 115.2 42.7 96 68.5

Apr 2025 724 12.2 448.70 593 38 77.73 120.0 50.3 100 69.5

May 2025 724 11.8 448.70 593 0 78.88 120.0 50.9 100 70.3

Jun 2025 699 11.7 448.70 593 0 78.89 120.0 49.1 100 70.3

Jul 2025 656 10.7 448.00 580 -13 78.96 120.0 45.9 100 70.0

Aug 2025 574 9.3 447.50 571 -10 78.92 120.0 40.0 100 69.7

Sep 2025 493 8.3 447.50 570 0 79.13 120.0 34.3 100 69.6

WY 2025 6236 432.3

Oct 2025 453 7.4 447.50 571 0 79.56 90.0 31.8 75 70.3

Nov 2025 372 6.2 447.50 570 0 80.11 92.0 25.5 77 68.6

Dec 2025 290 4.7 446.50 552 -19 80.41 114.2 18.4 95 63.5

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM 
Most Probable Inflow*

January 2024 24-Month Study

Upper Basin Power

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Fontenelle

Reservoir

1000 MWHR

Crystal

Reservoir

1000 MWHR

Glen

Canyon

Date 1000 MWHR

Flaming

Gorge

1000 MWHR

Blue 

Mesa

1000 MWHR

Morrow

Point

1000 MWHR 

* Jan 2023 182 41 4 5 2 4

H Feb 2023 172 37 5 6 0 1

I Mar 2023 173 23 4 6 0 3

Winter 2023 1083 220 15 49 16 15

S Apr 2023 291 17 5 9 3 4

T May 2023 412 18 21 40 20 7

O Jun 2023 439 43 32 50 22 8

R Jul 2023 483 29 38 45 22 8

I Aug 2023 374 44 31 37 21 6

C Sep 2023 194 44 4 35 20 6

Summer 2023 2195 194 131 215 109 39

A Oct 2023 199 38 8 23 6 6

L Nov 2023 206 34 9 10 5 6

* Dec 2023 245 49 11 12 6 6

Jan 2024 281 44 9 12 6 5

Feb 2024 246 41 8 11 6 4

Mar 2024 258 23 10 13 7 4

Winter 2024 1435 231 56 80 35 30

Apr 2024 229 23 16 22 12 2

May 2024 230 40 42 55 23 5

Jun 2024 245 32 16 25 15 6

Jul 2024 278 25 26 32 16 8

Aug 2024 295 25 26 31 16 7

Sep 2024 219 24 24 30 15 5

Summer 2024 1495 168 151 195 97 33

Oct 2024 184 25 18 22 10 0

Nov 2024 192 24 8 10 6 0

Dec 2024 229 29 12 15 8 1

Jan 2025 274 29 9 11 6 4

Feb 2025 240 26 8 11 6 3

Mar 2025 252 27 10 13 7 3

Winter 2025 1372 161 65 82 43 11

Apr 2025 225 26 14 21 12 2

May 2025 228 67 47 64 23 6

Jun 2025 248 33 26 35 22 7

Jul 2025 285 26 33 39 20 8

Aug 2025 302 36 34 40 20 6

Sep 2025 225 35 32 38 19 5

Summer 2025 1513 224 185 237 117 34

Oct 2025 190 25 26 31 10 5

Nov 2025 198 24 10 12 7 5

Dec 2025 237 35 18 23 12 5

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM
Most Probable Inflow*

January 2024 24-Month Study

Flood Control Criteria - Beginning of Month Conditions

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Navajo

Date KAF

Flaming

Gorge

KAF

Blue

Mesa

KAF

Lake

Powell

KAF

Upper Basin

Total

KAF

Lake

Mead

KAF

Total

KAF

Flaming

Gorge

KAF

Blue

Mesa

KAF

Navajo

KAF

Lake

Powell

KAF

Tot or Max

Allow

KAF

Lake

Mead

KAF

Total

KAF

BOM Space

Required

KAF

Mead 

Sched Rel

KAF

Mead 

FC Rel

KAF

Sys

Cont

MAF

* * * * P R E D I C T E D S P A C E * * * * * * * * E F F E C T I V E S P A C E * * * *

Jan 2024 626 247 549 14873 16295 18575 34870 626 247 549 1422 14873 18575 34870 5350 434 0 24.9

Jan 2024 626 247 549 14873 16295 18575 34870 191 138 250 579 14873 18575 34027 5350 434 0 24.9

Feb 2024 709 253 557 15168 16688 18263 34951 274 147 258 679 15168 18263 34109 1500 566 0 24.7

Mar 2024 783 259 560 15372 16974 18155 35129 347 154 259 760 15372 18155 34287 1500 838 0 24.5

Apr 2024 763 257 549 15591 17160 18255 35415 322 153 242 716 15591 18255 34563 1500 1058 0 24.0

May 2024 735 260 535 15661 17191 18673 35865 288 154 207 649 15661 18673 34984 1500 1035 0 24.3

Jun 2024 702 246 446 15151 16545 19110 35655 246 125 83 455 15151 19110 34716 1500 928 0 25.0

Jul 2024 510 115 420 14492 15536 19446 34982 41 -20 8 28 14492 19446 33966 1500 810 0 24.6

* * * * C R E D I T A B L E S P A C E * * * *

Aug 2024 486 131 465 14675 15756 19564 35320 486 131 465 1082 14675 19564 35320 1500 741 0 24.1

Sep 2024 510 163 493 15076 16242 19540 35782 510 163 493 1166 15076 19540 35782 2270 626 0 23.7

Oct 2024 549 204 501 15278 16533 19596 36129 549 204 501 1255 15278 19596 36129 3040 452 0 23.4

Nov 2024 578 228 493 15322 16621 19556 36177 578 228 493 1299 15322 19556 36177 3810 563 0 23.4

Dec 2024 602 226 491 15397 16716 19601 36317 602 226 491 1319 15397 19601 36317 4580 506 0 23.3

Jan 2025 655 239 493 15578 16965 19483 36448 655 239 493 1387 15578 19483 36448 5350 523 0 23.3

* * * * E F F E C T I V E S P A C E * * * *

Jan 2025 655 239 493 15578 16965 19483 36448 374 220 465 1059 15578 19483 36120 5350 523 0 23.3

Feb 2025 701 245 495 15885 17326 19258 36584 418 226 467 1111 15885 19258 36254 1500 563 0 23.1

Mar 2025 738 249 489 16088 17563 19151 36714 453 230 460 1144 16088 19151 36382 1500 833 0 23.0

Apr 2025 737 245 442 16213 17638 19247 36884 449 226 407 1082 16213 19247 36542 1500 1034 0 22.9

May 2025 710 216 377 16072 17374 19643 37017 417 196 318 931 16072 19643 36645 1500 1002 0 23.8

Jun 2025 676 180 254 14969 16079 20047 36126 376 148 157 681 14969 20047 35696 1500 890 0 25.1

Jul 2025 406 36 179 13846 14467 20344 34811 85 -19 25 91 13846 20344 34282 1500 772 0 25.0

* * * * C R E D I T A B L E S P A C E * * * *

Aug 2025 339 51 214 13896 14499 20423 34922 339 51 214 603 13896 20423 34922 1500 718 0 24.6

Sep 2025 393 96 251 14152 14891 20375 35266 393 96 251 739 14152 20375 35266 2270 622 0 24.2

Oct 2025 465 154 320 14225 15164 20424 35588 465 154 320 939 14225 20424 35588 3040 453 0 24.0

Nov 2025 495 203 312 14245 15255 20386 35641 495 203 312 1010 14245 20386 35641 3810 578 0 23.9

Dec 2025 519 206 309 14294 15329 20447 35776 519 206 309 1034 14294 20447 35776 4580 517 0 23.9

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3243 Processed On: 1/10/2024 10:36:11AM