Reservoir/River Data

Readings for Tuesday, March 31, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,231.2 = 900,200ac-ft (51.6% capacity) 3,231.2 3,230.5 N/A
Jeffrey Lake 2,757.7 2,757.1 2,756.1 2,757.6
Johnson Lake 2,617.6 2,614.2 2,615.6 2,617.4
Elwood Reservoir 2,580.6 2,581.1 2,582.0 2,587.5

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 693 675 931 984
Total Outflows from McConaughy 708 704 374 449
North Platte at Keystone 275 264 264 19
Keystone Diversion 433 440 110 430
North Platte at North Platte 530 564 567 381
South Platte at Roscoe 68.3 49.1 89.5 95.0
South Platte at North Platte 154 147 192 169
Supply Canal Diversion 868 843 1,010 1,251
Platte at Overton 644 712 827 974
Platte at Kearney 289 425 1230 446
Platte at Grand Island 253 678 1010 405

Charts

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McConaughy Historical Inflows
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McConaughy One Month
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McConaughy One Year
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Lake McConaughy Historical
JohnsonOneMonth.png
Johnson Lake One Month
Johnson5Years.png
Johnson Lake Historical
ElwoodWaterYear.png
Elwood Reservoir One Year
Elwood5Years.png
Elwood Reservoir Historical
JeffreyOneMonth.png
Jeffrey Lake One Month
Jeffrey5Years.png
Jeffrey Lake Historical

Flows and elevations are provisional. Readings from measuring equipment may be affected during icing conditions.

Colors of Water Tool

Lake McConaughy Weekly Temperature Readings

 Data is acquired from Nebraska DNR and USGS web services and CNPPID historical readings.