Reservoir/River Data

Readings for Thursday, October 1, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,201.9 = 397,200ac-ft (22.8% capacity) 3,201.4 3,201.4 3,223.3
Jeffrey Lake 2,758.1 2,758.2 2,758.3 2,757.3
Johnson Lake 2,618.2 2,618.4 2,618.2 2,616.6
Elwood Reservoir 2,583.8 2,584.0 2,587.9 2,590.3

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 426 374 683 921
Total Outflows from McConaughy 136 136 1,468 208
North Platte at Keystone 1 1 552 41
Keystone Diversion 135 135 916 167
North Platte at North Platte 456 473 731 417
South Platte at Roscoe 68.2 20.2 0.12 137
South Platte at North Platte 426 374 683 921
Supply Canal Diversion 667 633 1,422 631
Platte at Overton 18.8 18.0 24.4 19.7
Platte at Kearney 293 198 4.76 75.8
Platte at Grand Island 637 40.6 61.4 298

Charts

McConaughyInflows.png
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.