Reservoir/River Data

Readings for Tuesday, September 30, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,223.2 = 744,600ac-ft (42.7% capacity) 3,222.5 3,222.5 3,230.8
Jeffrey Lake 2,758.1 2,757.1 2,758.7 2,757.7
Johnson Lake 2,616.4 2,613.0 2,618.4 2,617.4
Elwood Reservoir 2,590.4 2,590.8 2,592.3 2,592.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 921 1,420 629 1,820
Total Outflows from McConaughy 339 553 2,060 196
North Platte at Keystone 49 122 930 196
Keystone Diversion 290 431 1,130 0
North Platte at North Platte 400 554 767 427
South Platte at Roscoe N/A 89.6 51.7 45.5
South Platte at North Platte 144 175 150 83
Supply Canal Diversion 635 879 2,282 589
Platte at Overton 597 1,010 2,110 613
Platte at Kearney N/A 163 743 190
Platte at Grand Island N/A 375 158 632

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.