Reservoir/River Data

Readings for Friday, July 11, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,230.0 = 876,000ac-ft (50.3% capacity) 3,230.7 3,234.6 3,236.5
Jeffrey Lake 2,758.6 2,757.7 2,758.4 2,757.7
Johnson Lake 2,618.4 2,618.3 2,617.8 2,617.9
Elwood Reservoir 2,599.9 2,600.1 2,599.2 2,597.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 364 450 685 664
Total Outflows from McConaughy 1,465 1,617 2,990 1,993
North Platte at Keystone 385 217 1,200 553
Keystone Diversion 1,080 1,400 1,790 1,440
North Platte at North Platte 305 387 1,090 348
South Platte at Roscoe 49.3 103 86.7 15.6
South Platte at North Platte 209 227 227 163
Supply Canal Diversion 1,678 1,462 2,272 1,550
Platte at Overton 1,570 1,470 2,080 1,510
Platte at Kearney 211 517 1740 1030
Platte at Grand Island 1140 1220 2110 1990

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.