Reservoir/River Data

Readings for Friday, May 29, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,226.0 = 797,600ac-ft (45.8% capacity) 3,228.0 3,230.1 3,236.1
Jeffrey Lake 2,758.5 2,758.2 2,758.0 2,758.0
Johnson Lake 2,618.3 2,618.4 2,617.1 2,618.6
Elwood Reservoir 2,601.3 2,599.9 2,595.2 2,597.9

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 118 224 300 1,330
Total Outflows from McConaughy 3,020 2,840 914 2,780
North Platte at Keystone 1,260 1,120 235 1,050
Keystone Diversion 1,760 1,720 679 1,730
North Platte at North Platte 1,250 405 397 1,490
South Platte at Roscoe 23.0 31.6 49.4 160
South Platte at North Platte 182 155 166 365
Supply Canal Diversion 2,293 1,709 1,108 2,269
Platte at Overton 2,130 1,650 1,150 2,070
Platte at Kearney 1620 110 41.4 1760
Platte at Grand Island 887 264 176 1130

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.