Reservoir/River Data

Readings for Tuesday, December 16, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,228.1 = 838,400ac-ft (48.1% capacity) 3,227.5 3,226.5 3,235.1
Jeffrey Lake 2,757.3 2,758.0 2,757.8 2,756.3
Johnson Lake 2,616.7 2,617.2 2,614.2 2,607.6
Elwood Reservoir 2,585.4 2,585.8 2,587.2 2,593.7

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 1,070 1,070 1,140 1,020
Total Outflows from McConaughy N/A 299 215 412
North Platte at Keystone 18 19 215 44
Keystone Diversion N/A 280 0 368
North Platte at North Platte 716 364 505 388
South Platte at Roscoe 213 219 36.8 108
South Platte at North Platte 307 269 136 178
Supply Canal Diversion 625 635 667 1,171
Platte at Overton 1,660 705 668 759
Platte at Kearney N/A 1520 2430 1090
Platte at Grand Island N/A N/A 1480 822

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.