Reservoir/River Data

Readings for Tuesday, April 28, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,230.1 = 878,000ac-ft (50.4% capacity) 3,230.5 3,231.2 3,239.4
Jeffrey Lake 2,758.5 2,757.2 2,755.9 2,757.9
Johnson Lake 2,617.2 2,617.9 2,616.2 2,618.0
Elwood Reservoir 2,595.3 2,592.3 2,580.9 2,595.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 283 432 683 619
Total Outflows from McConaughy 926 880 734 517
North Platte at Keystone 246 209 297 26
Keystone Diversion 680 671 437 491
North Platte at North Platte 421 312 557 310
South Platte at Roscoe 49.4 46.9 41.7 73.7
South Platte at North Platte 156 137 151 166
Supply Canal Diversion 1,238 721 836 670
Platte at Overton 968 494 721 671
Platte at Kearney 41.9 41.9 319 300
Platte at Grand Island 242 253 388 241

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.

Colors of Water Tool

Lake McConaughy Weekly Temperature Readings

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