Subject: February 2024 Most Probable 24-Month Study

The operation of Lake Powell and Lake Mead in the February 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) Plan1for 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 which is in effect through April 2024. 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 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 January was 0.283 maf or 84% of the 30-year average from 1991 to 2020. The February 2024 unregulated inflow forecast

for Lake Powell is 0.345 maf or 95% of the 30-year average. The 2024 April through July unregulated inflow forecast for Lake Powell is 4.70 maf or 74% of

average. The WY 2024 unregulated inflow forecast for Lake Powell is 7.36 maf or 77% 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 2024.

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) Jan Inflow Forecast (kaf) Apr-Jul

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

Lake Powell 324 380 324 283 84% 345 460 650 4700 74%

Fontenelle 53 45 35 29 95% 33 48 65 540 73%

Flaming Gorge 69 64 44 42 104% 50 95 100 680 70%

Blue Mesa 30 28 25 23 97% 22 34 65 560 88%

Morrow Point 31 29 26 25 99% 23 37 72 600 87%

Crystal 32 31 29 27 92% 26 41 80 665 86%

Taylor Park 6.1 5.1 4.8 4.6 107% 4.1 4.5 8 86 91%

Vallecito 6.3 3.6 3.5 3.7 72% 3.6 5 14 127 72%

Navajo 12.3 11.8 13.7 14.3 71% 20 42 75 390 62%

Lemon 0.94 0.56 0.55 0.56 68% 0.5 0.8 3 33 69%

McPhee 3.1 1.51 1.43 2.3 55% 3 9.5 35 167 65%

Ridgway 5.2 4.3 3.9 3.8 96% 3.5 4.5 7 75 82%

Deerlodge 19.4 24 26 26 111% 25 60 200 1100 92%

Durango 12.3 9.4 8.6 8.2 67% 9 14 30 275 71%

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_02_ucb.pdf.

Information on the LC Conservation Program is available online at:

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

February 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)

* Feb 2023 28 0 10 43 53 6476.59 141

H Mar 2023 30 0 55 3 58 6470.02 113

I Apr 2023 75 1 61 0 61 6473.29 126

S May 2023 323 1 102 95 198 6494.66 250

T Jun 2023 413 2 92 269 361 6501.41 299

O Jul 2023 141 3 86 41 127 6502.91 310

R Aug 2023 74 2 71 3 74 6502.60 308

I Sep 2023 50 2 70 1 71 6499.60 285

WY 2023 1265 15 693 545 1238

C Oct 2023 53 1 65 3 68 6497.41 269

A Nov 2023 45 1 68 0 68 6494.04 246

L Dec 2023 35 1 72 0 72 6488.41 208

* Jan 2024 29 1 72 0 72 6481.00 164

Feb 2024 33 0 68 0 68 6473.85 129

Mar 2024 48 0 70 0 70 6468.46 106

Apr 2024 65 1 12 29 41 6474.07 130

May 2024 110 1 92 0 92 6477.62 146

Jun 2024 250 2 102 2 104 6500.26 290

Jul 2024 115 3 97 0 97 6502.29 305

Aug 2024 50 2 91 0 91 6496.41 262

Sep 2024 38 2 70 0 70 6491.60 229

WY 2024 870 14 878 34 913

Oct 2024 45 1 0 55 55 6489.88 218

Nov 2024 42 1 0 58 58 6487.37 201

Dec 2024 32 1 20 42 61 6482.33 171

Jan 2025 31 1 61 0 61 6476.36 140

Feb 2025 29 0 56 0 56 6470.19 113

Mar 2025 51 0 51 0 51 6470.05 113

Apr 2025 77 1 38 12 50 6476.15 139

May 2025 166 1 92 0 92 6488.99 212

Jun 2025 301 2 104 133 237 6497.96 273

Jul 2025 146 3 96 0 96 6504.27 321

Aug 2025 59 2 70 0 70 6502.54 307

Sep 2025 39 2 54 0 54 6500.36 291

WY 2025 1018 15 641 300 941

Oct 2025 45 1 55 0 55 6498.79 279

Nov 2025 42 1 65 0 65 6495.51 256

Dec 2025 32 1 74 0 74 6489.25 213

Jan 2026 31 1 74 0 74 6482.10 170

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

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

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

WY 2023 1847 1821 74 1099 48 1147 3391

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

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

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

* Jan 2024 41 85 2 131 0 131 120 6026.37 3131 165

Feb 2024 50 85 2 118 0 118 119 6025.40 3097 143

Mar 2024 95 117 3 64 0 64 121 6026.75 3145 124

Apr 2024 100 76 5 62 0 62 121 6027.00 3154 262

May 2024 160 142 7 127 0 127 121 6027.21 3161 607

Jun 2024 300 154 10 95 0 95 123 6028.52 3209 460

Jul 2024 120 102 13 74 0 74 124 6028.91 3223 129

Aug 2024 60 101 13 77 0 77 124 6029.21 3235 92

Sep 2024 45 77 11 71 0 71 124 6029.06 3229 86

WY 2024 1148 1189 78 1139 0 1139 2496

Oct 2024 52 62 7 74 0 74 123 6028.58 3211 100

Nov 2024 51 67 3 72 0 72 123 6028.35 3202 104

Dec 2024 34 63 2 86 0 86 122 6027.70 3179 111

Jan 2025 42 72 2 86 0 86 121 6027.30 3164 111

Feb 2025 43 70 2 78 0 78 121 6027.02 3155 103

Mar 2025 85 85 3 82 0 82 121 6027.02 3154 156

Apr 2025 111 84 5 80 0 80 121 6027.00 3154 283

May 2025 239 165 7 201 0 201 119 6025.83 3112 714

Jun 2025 389 325 10 139 0 139 126 6030.42 3281 506

Jul 2025 161 111 14 76 0 76 127 6030.95 3302 136

Aug 2025 66 77 13 106 0 106 125 6029.91 3262 125

Sep 2025 43 58 11 104 0 104 123 6028.45 3206 117

WY 2025 1316 1239 79 1184 0 1184 2566

Oct 2025 52 62 7 74 0 74 122 6027.97 3189 100

Nov 2025 50 73 3 73 0 73 122 6027.88 3186 103

Dec 2025 34 76 2 111 0 111 121 6026.90 3150 136

Jan 2026 42 85 2 111 0 111 120 6026.16 3124 136

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

* Feb 2023 4 5 9306.26 64

H Mar 2023 4 5 9305.50 63

I Apr 2023 7 9 9304.30 61

S May 2023 39 20 9316.35 80

T Jun 2023 50 28 9328.01 102

O Jul 2023 22 26 9326.25 99

R Aug 2023 9 21 9319.91 87

I Sep 2023 6 15 9314.22 77

WY 2023 159 151

C Oct 2023 6 6 9314.04 77

A Nov 2023 5 6 9313.41 75

L Dec 2023 5 6 9312.49 74

* Jan 2024 5 6 9311.45 72

Feb 2024 4 6 9310.42 71

Mar 2024 5 6 9309.62 69

Apr 2024 8 6 9310.84 71

May 2024 26 12 9319.28 86

Jun 2024 37 22 9327.21 101

Jul 2024 15 19 9324.98 96

Aug 2024 7 18 9318.83 85

Sep 2024 5 15 9313.11 75

WY 2024 127 129

Oct 2024 7 9 9311.84 73

Nov 2024 5 5 9311.81 73

Dec 2024 4 5 9311.04 72

Jan 2025 5 5 9310.91 71

Feb 2025 4 5 9310.41 71

Mar 2025 5 5 9310.29 70

Apr 2025 9 9 9310.29 70

May 2025 26 15 9316.87 81

Jun 2025 40 18 9328.58 103

Jul 2025 15 24 9323.98 94

Aug 2025 8 18 9318.56 84

Sep 2025 7 18 9312.14 73

WY 2025 135 137

Oct 2025 7 9 9310.91 71

Nov 2025 5 5 9310.88 71

Dec 2025 4 5 9310.10 70

Jan 2026 5 5 9309.97 70

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

* Feb 2023 20 21 0 20 0 20 7447.61 296

H Mar 2023 25 26 0 19 0 19 7448.79 303

I Apr 2023 77 79 1 23 0 23 7458.56 358

S May 2023 327 309 1 77 0 77 7491.44 589

T Jun 2023 312 290 1 106 6 131 7510.36 747

O Jul 2023 117 120 1 125 1 126 7509.50 739

R Aug 2023 49 61 1 105 0 105 7504.26 694

I Sep 2023 26 36 1 15 85 100 7496.50 629

WY 2023 1060 1052 8 517 170 706

C Oct 2023 30 30 1 30 33 63 7492.37 596

A Nov 2023 28 29 0 33 0 33 7491.85 592

L Dec 2023 25 26 0 40 0 40 7490.05 578

* Jan 2024 23 25 0 35 0 35 7488.79 568

Feb 2024 22 24 0 34 0 34 7487.43 558

Mar 2024 34 35 0 38 0 38 7487.05 555

Apr 2024 65 63 1 58 0 58 7487.60 559

May 2024 195 181 1 180 0 180 7487.51 558

Jun 2024 230 215 1 61 0 61 7506.22 711

Jul 2024 70 74 1 95 0 95 7503.65 689

Aug 2024 46 57 1 98 0 98 7498.70 647

Sep 2024 31 41 1 81 0 81 7493.61 606

WY 2024 799 801 8 783 33 816

Oct 2024 36 38 1 59 0 59 7490.86 584

Nov 2024 30 30 0 23 0 23 7491.69 591

Dec 2024 26 27 0 31 0 31 7491.20 587

Jan 2025 25 25 0 31 0 31 7490.45 581

Feb 2025 23 24 0 16 0 16 7491.38 589

Mar 2025 38 38 0 21 0 21 7493.44 605

Apr 2025 78 78 1 37 0 37 7498.47 646

May 2025 204 193 1 150 0 150 7503.46 687

Jun 2025 251 229 1 99 0 99 7518.09 816

Jul 2025 86 95 2 94 0 94 7518.08 816

Aug 2025 55 65 1 97 0 97 7514.45 783

Sep 2025 35 46 1 91 0 91 7509.21 737

WY 2025 887 889 9 749 0 749

Oct 2025 36 38 1 81 0 81 7504.19 693

Nov 2025 31 31 0 59 0 59 7500.88 666

Dec 2025 26 27 0 105 0 105 7491.30 588

Jan 2026 25 25 0 74 0 74 7484.97 539

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

R Aug 2023 49 105 0 105 105 0 105 7152.17 111

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

WY 2023 1136 706 76 782 780 2 787

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

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

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

* Jan 2024 25 35 1 36 36 0 36 7152.69 111

Feb 2024 23 34 1 35 34 0 34 7153.73 112

Mar 2024 37 38 3 41 41 0 41 7153.73 112

Apr 2024 72 58 7 65 65 0 65 7153.73 112

May 2024 210 180 15 195 195 0 195 7153.73 112

Jun 2024 245 61 15 76 76 0 76 7153.72 112

Jul 2024 73 95 3 98 98 0 98 7153.73 112

Aug 2024 48 98 2 100 100 0 100 7153.73 112

Sep 2024 33 81 2 83 83 0 83 7153.73 112

WY 2024 851 816 52 868 864 0 864

Oct 2024 37 59 1 60 60 0 60 7153.73 112

Nov 2024 31 23 1 24 24 0 24 7153.73 112

Dec 2024 27 31 1 32 32 0 32 7153.73 112

Jan 2025 26 31 1 32 32 0 32 7153.73 112

Feb 2025 25 16 2 18 18 0 18 7153.73 112

Mar 2025 40 21 2 23 23 0 23 7153.73 112

Apr 2025 89 37 11 48 47 0 47 7153.73 112

May 2025 226 150 22 172 172 0 172 7153.73 112

Jun 2025 265 99 14 113 113 0 113 7153.72 112

Jul 2025 90 94 4 98 97 0 97 7153.73 112

Aug 2025 56 97 1 98 98 0 98 7153.73 112

Sep 2025 36 91 1 92 92 0 92 7153.73 112

WY 2025 948 749 61 810 809 0 809

Oct 2025 37 81 1 82 82 0 82 7153.73 112

Nov 2025 32 59 1 60 60 0 60 7153.73 112

Dec 2025 27 105 1 106 106 0 106 7153.73 112

Jan 2026 26 74 1 75 75 0 75 7153.73 112

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

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

I 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

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

A Nov 2023 31 33 3 35 35 0 35 6747.08 15 14 18

L Dec 2023 29 36 3 39 38 0 38 6747.95 16 1 33

* Jan 2024 27 36 2 38 37 0 37 6751.96 17 0 32

Feb 2024 26 34 3 37 37 0 37 6753.04 17 2 35

Mar 2024 41 41 4 45 45 0 45 6753.04 17 5 40

Apr 2024 80 65 8 73 73 0 73 6753.04 17 42 31

May 2024 235 195 25 220 134 86 220 6753.04 17 62 158

Jun 2024 270 76 25 101 101 0 101 6753.03 17 61 40

Jul 2024 80 98 7 105 105 0 105 6753.04 17 65 40

Aug 2024 53 100 5 105 105 0 105 6753.04 17 65 40

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

WY 2024 939 864 89 952 826 125 952 421 521

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

Nov 2024 35 24 4 28 28 0 28 6753.04 17 0 28

Dec 2024 32 32 5 37 37 0 37 6753.04 17 0 37

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

Feb 2025 29 18 4 22 22 0 22 6753.04 17 0 22

Mar 2025 46 23 6 29 29 0 29 6753.04 17 5 24

Apr 2025 100 47 11 58 58 0 58 6753.04 17 42 16

May 2025 251 172 25 197 134 63 197 6753.04 17 62 135

Jun 2025 293 113 28 141 130 11 141 6753.03 17 61 80

Jul 2025 98 97 8 105 105 0 105 6753.04 17 65 40

Aug 2025 63 98 7 105 105 0 105 6753.04 17 65 40

Sep 2025 42 92 6 98 98 0 98 6753.04 17 55 43

WY 2025 1063 809 115 924 840 84 924 410 514

Oct 2025 43 82 6 88 60 27 88 6753.04 17 49 38

Nov 2025 37 60 5 65 65 0 65 6753.04 17 49 15

Dec 2025 32 106 5 111 111 0 111 6753.04 17 1 110

Jan 2026 31 75 5 80 80 0 80 6753.04 17 0 80

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

* Feb 2023 5 2 7644.74 75

H Mar 2023 7 36 7630.44 46

I Apr 2023 36 45 7625.05 36

S May 2023 119 64 7651.55 91

T Jun 2023 75 41 7664.54 124

O Jul 2023 22 37 7658.55 108

R Aug 2023 11 38 7647.43 81

I Sep 2023 9 32 7636.60 57

WY 2023 314 299

C Oct 2023 6 9 7635.08 54

A Nov 2023 4 0 7636.68 57

L Dec 2023 4 0 7638.20 61

* Jan 2024 4 0 7639.77 64

Feb 2024 4 1 7640.93 66

Mar 2024 5 2 7642.43 70

Apr 2024 14 1 7647.81 82

May 2024 55 31 7657.33 105

Jun 2024 45 43 7658.01 107

Jul 2024 13 41 7646.16 78

Aug 2024 10 38 7632.79 50

Sep 2024 10 29 7620.91 31

WY 2024 173 197

Oct 2024 13 16 7618.24 27

Nov 2024 8 0 7623.66 35

Dec 2024 7 0 7627.74 41

Jan 2025 6 0 7630.90 47

Feb 2025 5 0 7633.35 51

Mar 2025 10 0 7638.10 61

Apr 2025 23 1 7647.71 82

May 2025 68 31 7662.29 118

Jun 2025 62 58 7663.49 122

Jul 2025 21 42 7655.38 100

Aug 2025 15 38 7645.73 77

Sep 2025 16 30 7639.40 63

WY 2025 254 218

Oct 2025 13 17 7637.28 59

Nov 2025 9 1 7640.85 66

Dec 2025 7 2 7643.32 72

Jan 2026 6 2 7645.27 76

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

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

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

WY 2023 1219 145 1059 24 195 565 1203

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

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

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

* Jan 2024 14 0 11 1 0 21 6042.57 1088 34

Feb 2024 20 0 17 1 0 20 6042.24 1084 29

Mar 2024 42 2 36 1 5 22 6043.00 1093 36

Apr 2024 75 8 55 2 19 21 6044.16 1105 51

May 2024 195 26 146 3 31 22 6052.02 1195 132

Jun 2024 110 13 95 4 45 22 6054.00 1218 122

Jul 2024 10 0 38 4 49 54 6048.18 1150 89

Aug 2024 21 1 48 3 41 37 6045.25 1117 61

Sep 2024 28 1 46 2 22 30 6044.48 1109 50

WY 2024 553 51 527 24 219 321 710

Oct 2024 35 2 37 2 8 22 6045.03 1115 45

Nov 2024 29 1 21 1 0 27 6044.38 1108 44

Dec 2024 24 0 17 1 0 25 6043.58 1099 40

Jan 2025 22 0 16 1 0 22 6043.05 1093 35

Feb 2025 29 1 23 1 0 19 6043.34 1096 31

Mar 2025 92 10 72 1 5 22 6047.31 1140 45

Apr 2025 147 18 107 2 21 21 6052.77 1204 72

May 2025 251 34 180 3 35 22 6062.39 1323 157

Jun 2025 187 25 159 4 51 21 6068.56 1405 165

Jul 2025 33 2 51 5 55 29 6065.76 1368 80

Aug 2025 24 1 45 4 47 33 6062.89 1330 62

Sep 2025 31 2 43 3 26 30 6061.73 1315 56

WY 2025 904 96 772 27 248 291 830

Oct 2025 35 2 38 2 9 22 6062.13 1320 45

Nov 2025 30 1 22 1 0 21 6062.11 1319 39

Dec 2025 24 0 18 1 0 22 6061.81 1316 37

Jan 2026 22 0 17 1 0 22 6061.45 1311 35

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

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

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

WY 2023 13421 12043 230 8491 90 8581 8730

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

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

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

* Jan 2024 283 402 5 723 0 723 3564.88 4705 8138 732

Feb 2024 345 424 6 639 0 639 3562.07 4688 7934 650

Mar 2024 460 420 9 675 0 675 3558.62 4669 7689 689

Apr 2024 650 578 15 601 0 601 3558.12 4666 7654 618

May 2024 1550 1386 18 599 0 599 3567.97 4723 8366 620

Jun 2024 1900 1496 31 628 0 628 3578.08 4785 9142 645

Jul 2024 600 671 39 709 0 709 3577.18 4779 9071 724

Aug 2024 260 386 38 758 0 758 3572.28 4749 8691 772

Sep 2024 280 382 34 567 0 567 3569.60 4733 8488 583

WY 2024 7356 7413 260 7480 0 7480 7633

Oct 2024 417 458 23 480 0 480 3569.04 4729 8446 496

Nov 2024 433 446 23 500 0 500 3568.09 4724 8375 505

Dec 2024 361 420 18 600 0 600 3565.61 4709 8191 603

Jan 2025 350 400 5 723 0 723 3561.41 4685 7887 727

Feb 2025 397 417 5 639 0 639 3558.43 4668 7676 650

Mar 2025 614 540 9 675 0 675 3556.52 4657 7542 689

Apr 2025 920 760 15 601 0 601 3558.44 4668 7676 618

May 2025 2060 1808 18 599 0 599 3573.43 4756 8779 620

Jun 2025 2423 1931 33 628 0 628 3588.08 4850 9955 645

Jul 2025 711 687 42 709 0 709 3587.37 4845 9896 724

Aug 2025 371 509 41 758 0 758 3584.12 4824 9627 772

Sep 2025 316 459 38 568 0 568 3582.46 4813 9492 584

WY 2025 9373 8834 270 7480 0 7480 7633

Oct 2025 417 480 26 643 0 643 3580.29 4799 9318 659

Nov 2025 450 492 25 642 0 642 3578.26 4786 9156 647

Dec 2025 361 514 19 715 0 715 3575.66 4770 8952 718

Jan 2026 350 467 6 857 0 857 3570.90 4741 8586 861

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

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

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

WY 2023 8581 1340 458 7633 187 7518

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

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

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

* Jan 2024 723 68 25 368 6.0 6 357 612 1072.67 9413

Feb 2024 639 71 24 377 6.6 9 377 630 1076.14 9694

Mar 2024 675 97 26 822 13.4 16 822 625 1075.08 9608

Apr 2024 601 60 35 1081 18.2 16 1081 596 1069.58 9166

May 2024 599 37 43 1049 17.1 23 1049 567 1063.83 8716

Jun 2024 628 22 51 928 15.6 27 928 545 1059.46 8382

Jul 2024 709 55 48 810 13.2 29 810 537 1057.92 8266

Aug 2024 758 86 52 741 12.0 25 741 539 1058.25 8291

Sep 2024 567 72 51 626 10.5 21 626 535 1057.50 8235

WY 2024 7480 711 485 8183 200 8202

Oct 2024 480 77 48 452 7.4 17 452 538 1058.01 8273

Nov 2024 500 63 42 629 10.6 10 629 531 1056.53 8162

Dec 2024 600 72 34 591 9.6 10 591 533 1056.99 8197

Jan 2025 723 75 24 523 8.5 11 523 547 1059.98 8422

Feb 2025 639 71 22 563 10.1 10 563 554 1061.39 8529

Mar 2025 675 97 24 832 13.5 17 832 548 1060.13 8433

Apr 2025 601 60 32 1034 17.4 17 1034 522 1054.84 8037

May 2025 599 37 40 1002 16.3 24 1002 496 1049.31 7633

Jun 2025 628 22 48 890 15.0 29 890 477 1045.13 7335

Jul 2025 709 55 45 772 12.6 31 772 472 1044.01 7257

Aug 2025 758 86 49 718 11.7 26 718 475 1044.69 7304

Sep 2025 568 72 48 623 10.5 23 623 471 1043.97 7254

WY 2025 7480 786 457 8629 225 8629

Oct 2025 643 77 45 453 7.4 18 453 484 1046.68 7445

Nov 2025 642 63 40 578 9.7 11 578 489 1047.68 7517

Dec 2025 715 72 33 517 8.4 11 517 502 1050.64 7729

Jan 2026 857 75 23 542 8.8 14 542 524 1055.16 8060

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

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

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

WY 2023 7633 -107 152 7365 0 7381

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

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

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

* Jan 2024 368 -2 9 314 0 314 5.1 641.95 1670

Feb 2024 377 -13 8 355 0 355 6.2 642.00 1671

Mar 2024 822 -10 10 788 0 788 12.8 642.50 1685

Apr 2024 1081 -14 13 1041 0 1041 17.5 643.00 1699

May 2024 1049 -13 14 1022 0 1022 16.6 643.00 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 8183 -140 151 7860 0 7860

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

Nov 2024 629 -16 13 549 0 549 9.2 635.00 1486

Dec 2024 591 -2 13 459 0 459 7.5 639.51 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 832 -10 10 778 0 778 12.6 643.05 1700

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

May 2025 1002 -13 14 974 0 974 15.8 643.00 1699

Jun 2025 890 -21 14 855 0 855 14.4 643.00 1699

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

Aug 2025 718 -17 15 685 0 685 11.1 642.00 1671

Sep 2025 623 -6 16 654 0 654 11.0 640.01 1617

WY 2025 8629 -154 151 8324 0 8324

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 6.2 639.51 1604

Jan 2026 542 -11 9 460 0 460 7.5 641.80 1666

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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)

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

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

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

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

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

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

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

I 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

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

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

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

* Jan 2024 314 9 6 197 3.2 57 48 448.40 588 112 1.8

Feb 2024 355 4 8 267 4.6 40 66 447.00 561 124 2.2

Mar 2024 788 2 9 632 10.3 5 126 447.50 571 146 2.4

Apr 2024 1041 7 11 737 12.4 98 169 448.70 593 150 2.5

May 2024 1022 4 13 746 12.1 98 157 448.70 593 126 2.0

Jun 2024 893 10 16 718 12.1 101 57 448.70 593 132 2.2

Jul 2024 804 17 17 679 11.0 106 21 448.00 580 134 2.2

Aug 2024 708 19 17 583 9.5 106 20 447.50 571 106 1.7

Sep 2024 657 12 15 502 8.4 103 40 447.50 570 98 1.6

WY 2024 7860 135 140 6047 875 852 1366

Oct 2024 610 21 12 454 7.4 106 51 447.50 571 83 1.4

Nov 2024 549 14 9 436 7.3 79 34 447.50 570 100 1.7

Dec 2024 459 17 7 373 6.1 83 27 446.50 552 117 1.9

Jan 2025 442 7 6 325 5.3 72 39 446.50 552 138 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 974 4 13 724 11.8 84 147 448.70 593 110 1.8

Jun 2025 855 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 685 19 17 574 9.3 94 19 447.50 571 102 1.7

Sep 2025 654 12 15 493 8.3 91 57 447.50 570 99 1.7

WY 2025 8324 134 139 6502 971 747 1406

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

Jan 2026 460 7 6 330 5.4 72 53 446.50 552 138 2.2

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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

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

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

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

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

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

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

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

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

WY 2023 7632 2759.0

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

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

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

* Jan 2024 368 6.0 1072.67 9413 368 429.50 1023.0 136.8 69 371.7

Feb 2024 377 6.6 1076.14 9694 281 425.25 975.1 141.0 66 373.9

Mar 2024 822 13.4 1075.08 9608 -86 425.06 1144.1 319.1 77 388.4

Apr 2024 1081 18.2 1069.58 9166 -442 421.68 1123.3 419.6 76 388.2

May 2024 1049 17.1 1063.83 8716 -450 414.66 1266.6 392.7 88 374.4

Jun 2024 928 15.6 1059.46 8382 -334 408.91 1341.4 342.5 95 369.2

Jul 2024 810 13.2 1057.92 8266 -116 405.75 1390.0 296.8 100 366.4

Aug 2024 741 12.0 1058.25 8291 25 405.47 1399.4 268.6 100 362.6

Sep 2024 626 10.5 1057.50 8235 -56 405.91 1399.4 223.7 100 357.3

WY 2024 8183 3054.4

Oct 2024 452 7.4 1058.01 8273 38 412.30 827.9 167.4 60 370.1

Nov 2024 629 10.6 1056.53 8162 -111 414.10 830.0 233.9 60 371.9

Dec 2024 591 9.6 1056.99 8197 35 411.12 877.4 218.3 63 369.2

Jan 2025 523 8.5 1059.98 8422 225 410.65 890.4 189.9 63 363.0

Feb 2025 563 10.1 1061.39 8529 107 412.77 813.7 211.0 56 374.9

Mar 2025 832 13.5 1060.13 8433 -96 412.30 839.9 318.2 58 382.2

Apr 2025 1034 17.4 1054.84 8037 -396 404.89 1364.2 376.5 93 364.3

May 2025 1002 16.3 1049.31 7633 -404 400.24 1242.3 358.5 87 357.9

Jun 2025 890 15.0 1045.13 7335 -297 395.44 1217.1 316.2 87 355.2

Jul 2025 772 12.6 1044.01 7257 -79 391.78 1348.3 270.7 100 350.7

Aug 2025 718 11.7 1044.69 7304 48 391.88 1352.6 249.9 100 348.3

Sep 2025 623 10.5 1043.97 7254 -51 392.51 1348.0 218.4 100 350.4

WY 2025 8629 3129.1

Oct 2025 453 7.4 1046.68 7445 191 398.06 1063.5 161.3 78 356.0

Nov 2025 578 9.7 1047.68 7517 71 402.61 1013.1 208.1 74 360.0

Dec 2025 517 8.4 1050.64 7729 213 401.15 1200.3 187.3 86 362.4

Jan 2026 542 8.8 1055.16 8060 331 405.10 877.9 195.1 63 359.9

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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

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

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

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

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

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

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

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

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

WY 2023 7365 938.3

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

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

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

* Jan 2024 314 5.1 641.95 1670 44 143.06 164.5 39.1 65 124.7

Feb 2024 355 6.2 642.00 1671 1 141.80 202.2 45.4 79 127.8

Mar 2024 788 12.8 642.50 1685 14 139.30 204.0 98.8 80 125.5

Apr 2024 1041 17.5 643.00 1699 14 138.17 204.0 129.6 80 124.5

May 2024 1022 16.6 643.00 1699 0 138.70 204.0 127.7 80 125.0

Jun 2024 893 15.0 643.00 1699 0 139.25 207.4 112.0 81 125.5

Jul 2024 804 13.1 642.00 1671 -27 139.44 255.0 101.0 100 125.6

Aug 2024 708 11.5 642.00 1671 0 139.53 255.0 89.1 100 125.7

Sep 2024 657 11.0 640.01 1617 -54 138.72 255.0 82.2 100 125.0

WY 2024 7860 983.8

Oct 2024 610 9.9 633.00 1434 -183 134.68 227.0 74.1 89 121.3

Nov 2024 549 9.2 635.00 1486 51 132.47 159.8 65.5 63 119.3

Dec 2024 459 7.5 639.51 1604 118 136.50 154.7 56.4 61 123.0

Jan 2025 442 7.2 641.80 1666 62 140.02 156.3 55.7 61 126.1

Feb 2025 543 9.8 641.80 1666 0 140.04 156.6 68.5 61 126.2

Mar 2025 778 12.6 643.05 1700 34 139.53 194.1 97.8 76 125.7

Apr 2025 1009 17.0 643.00 1699 -2 138.62 249.9 126.0 98 124.9

May 2025 974 15.8 643.00 1699 0 138.96 255.0 122.0 100 125.2

Jun 2025 855 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 96.3 100 125.8

Aug 2025 685 11.1 642.00 1671 0 139.68 255.0 86.3 100 125.8

Sep 2025 654 11.0 640.01 1617 -54 138.74 255.0 81.8 100 125.0

WY 2025 8324 1037.8

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 6.2 639.51 1604 118 137.05 154.7 47.4 61 123.5

Jan 2026 460 7.5 641.80 1666 62 139.89 156.3 58.0 61 126.0

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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

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

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

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

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

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

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

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

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

WY 2023 5703 395.3

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

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

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

* Jan 2024 197 3.2 448.40 588 11 83.76 72.6 12.3 60 62.2

Feb 2024 267 4.6 447.00 561 -26 81.15 94.1 19.0 78 71.3

Mar 2024 632 10.3 447.50 571 9 78.02 114.2 43.6 95 69.1

Apr 2024 737 12.4 448.70 593 23 78.05 120.0 51.4 100 69.8

May 2024 746 12.1 448.70 593 0 78.74 120.0 52.4 100 70.2

Jun 2024 718 12.1 448.70 593 0 78.76 120.0 50.4 100 70.2

Jul 2024 679 11.0 448.00 580 -13 78.81 120.0 47.4 100 69.9

Aug 2024 583 9.5 447.50 571 -10 78.85 120.0 40.6 100 69.7

Sep 2024 502 8.4 447.50 570 0 79.06 120.0 34.9 100 69.5

WY 2024 6047 419.2

Oct 2024 454 7.4 447.50 571 0 79.55 90.0 32.0 75 70.3

Nov 2024 436 7.3 447.50 570 0 79.58 92.0 29.7 77 68.2

Dec 2024 373 6.1 446.50 552 -19 79.69 114.2 23.5 95 62.9

Jan 2025 325 5.3 446.50 552 0 79.60 94.8 21.7 79 66.8

Feb 2025 421 7.6 446.50 552 0 78.46 92.1 29.0 77 68.9

Mar 2025 623 10.1 446.70 555 4 77.43 120.0 42.7 100 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 6502 449.1

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 80.41 109.4 18.4 91 63.5

Jan 2026 330 5.4 446.50 552 0 79.56 94.8 22.0 79 66.7

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM 
Most Probable Inflow*

February 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 

* Feb 2023 172 37 5 6 0 1

H Mar 2023 173 23 4 6 0 3

Winter 2023 1083 220 15 49 16 15

I Apr 2023 291 17 5 9 3 4

S May 2023 412 18 21 40 20 7

T Jun 2023 439 43 32 50 22 8

O Jul 2023 483 29 38 45 22 8

R Aug 2023 374 44 31 37 21 6

I Sep 2023 194 44 4 35 20 6

Summer 2023 2195 194 131 215 109 39

C Oct 2023 199 38 8 23 6 6

A Nov 2023 206 34 9 10 5 6

L Dec 2023 245 49 11 12 6 6

* Jan 2024 294 49 9 12 5 5

Feb 2024 246 40 10 12 6 4

Mar 2024 258 22 11 15 8 4

Winter 2024 1448 232 59 83 36 31

Apr 2024 229 21 17 23 13 1

May 2024 231 43 53 70 23 5

Jun 2024 247 32 18 27 17 7

Jul 2024 281 25 29 35 18 7

Aug 2024 298 26 30 36 18 7

Sep 2024 221 24 24 30 15 5

Summer 2024 1507 171 171 222 104 32

Oct 2024 187 25 18 22 10 0

Nov 2024 195 24 7 9 5 0

Dec 2024 232 29 9 11 6 1

Jan 2025 278 29 9 11 6 4

Feb 2025 244 26 5 7 4 3

Mar 2025 256 28 6 8 5 3

Winter 2025 1393 162 54 69 36 11

Apr 2025 228 27 11 17 10 2

May 2025 232 68 46 62 23 6

Jun 2025 251 47 31 41 22 7

Jul 2025 288 26 30 35 18 7

Aug 2025 306 36 30 35 18 5

Sep 2025 228 35 28 33 17 4

Summer 2025 1533 239 176 223 109 32

Oct 2025 257 25 25 29 10 4

Nov 2025 255 25 18 21 11 5

Dec 2025 283 37 31 38 19 5

Jan 2026 336 37 22 27 14 5

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM
Most Probable Inflow*

February 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 * * * *

Feb 2024 715 256 560 15176 16708 18207 34915 285 150 227 661 15176 18207 34044 1500 377 0 24.9

Mar 2024 785 267 564 15380 16995 17926 34921 353 162 230 744 15380 17926 34050 1500 822 0 24.7

Apr 2024 759 270 555 15624 17209 18012 35220 322 166 215 703 15624 18012 34339 1500 1081 0 24.3

May 2024 727 266 543 15659 17195 18453 35648 284 159 182 625 15659 18453 34737 1500 1049 0 24.7

Jun 2024 703 266 453 14947 16370 18902 35272 251 144 58 453 14947 18902 34303 1500 928 0 25.5

Jul 2024 512 114 430 14172 15227 19238 34463 46 -25 -15 6 14172 19238 33416 1500 810 0 25.2

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

Aug 2024 482 136 498 14243 15359 19354 34709 482 136 498 1116 14243 19354 34712 1500 741 0 24.7

Sep 2024 514 177 531 14623 15845 19329 35170 514 177 531 1222 14623 19329 35174 2270 626 0 24.3

Oct 2024 553 219 539 14826 16136 19385 35521 553 219 539 1311 14826 19385 35521 3040 452 0 24.1

Nov 2024 582 240 533 14868 16223 19347 35571 582 240 533 1356 14868 19347 35571 3810 629 0 23.9

Dec 2024 607 234 540 14939 16320 19458 35778 607 234 540 1381 14939 19458 35778 4580 591 0 23.8

Jan 2025 660 238 549 15122 16569 19423 35993 660 238 549 1447 15122 19423 35993 5350 523 0 23.7

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

Jan 2025 660 238 549 15122 16569 19423 35993 327 238 454 1019 15122 19423 35565 5350 523 0 23.7

Feb 2025 706 244 555 15427 16931 19198 36129 371 244 459 1074 15427 19198 35699 1500 563 0 23.6

Mar 2025 743 236 552 15638 17168 19091 36259 406 236 455 1098 15638 19091 35827 1500 832 0 23.4

Apr 2025 744 220 508 15771 17242 19187 36429 404 220 405 1028 15771 19187 35987 1500 1034 0 23.4

May 2025 717 179 444 15637 16978 19583 36562 372 179 318 870 15637 19583 36091 1500 1002 0 24.3

Jun 2025 687 138 325 14535 15684 19987 35671 334 138 160 632 14535 19987 35154 1500 890 0 25.6

Jul 2025 456 9 242 13359 14067 20285 34351 85 -8 22 100 13359 20285 33743 1500 772 0 25.4

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

Aug 2025 389 9 280 13418 14096 20363 34459 389 9 280 678 13418 20363 34459 1500 718 0 25.1

Sep 2025 442 42 318 13686 14488 20316 34804 442 42 318 802 13686 20316 34804 2270 623 0 24.7

Oct 2025 514 88 333 13822 14757 20366 35123 514 88 333 935 13822 20366 35123 3040 453 0 24.4

Nov 2025 543 131 328 13996 14998 20175 35173 543 131 328 1002 13996 20175 35173 3810 578 0 24.4

Dec 2025 569 159 328 14158 15215 20103 35318 569 159 328 1057 14158 20103 35318 4580 517 0 24.3

Jan 2026 647 237 332 14362 15578 19891 35468 647 237 332 1216 14362 19891 35468 5350 542 0 24.2

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

Jan 2026 647 237 332 14362 15578 19891 35468 294 206 99 599 14362 19891 34851 5350 542 0 24.2

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3246 Processed On: 2/9/2024 9:32:26AM