Reservoir/River Data

Readings for Friday, July 18, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,228.9 = 854,100ac-ft (49% capacity) 3,230.0 3,233.2 3,235.3
Jeffrey Lake 2,758.5 2,757.6 2,758.1 2,758.4
Johnson Lake 2,618.6 2,618.2 2,617.8 2,617.7
Elwood Reservoir 2,599.4 2,599.9 2,598.6 2,596.8

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy N/A 244 566 362
Total Outflows from McConaughy 1,848 1,473 3,240 2,238
North Platte at Keystone 418 413 1,410 578
Keystone Diversion 1,430 1,060 1,830 1,660
North Platte at North Platte 311 326 1,810 347
South Platte at Roscoe 18.6 36.3 93.6 3.96
South Platte at North Platte 144 200 249 218
Supply Canal Diversion 1,572 1,567 2,278 1,916
Platte at Overton 1,570 1,650 2,070 1,820
Platte at Kearney 371 258 2070 445
Platte at Grand Island 1050 1120 1830 586

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.

Lake McConaughy Weekly Temperature Readings

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