Reservoir/River Data

Readings for Sunday, January 18, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,229.6 = 868,000ac-ft (49.8% capacity) 3,229.5 3,228.2 3,236.4
Jeffrey Lake 2,756.9 2,757.1 2,757.3 2,758.2
Johnson Lake 2,616.0 2,616.2 2,616.5 2,608.0
Elwood Reservoir 2,583.6 2,584.0 2,585.3 2,591.6

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 752 906 1,110 1,260
Total Outflows from McConaughy 527 275 232 722
North Platte at Keystone 211 10 18 28
Keystone Diversion 316 265 214 694
North Platte at North Platte 745 324 377 145
South Platte at Roscoe 31.4 143 168 133
South Platte at North Platte 238 273 281 149
Supply Canal Diversion 1,226 580 579 1,188
Platte at Overton 1,240 779 654 1,010
Platte at Kearney N/A 1680 756 645
Platte at Grand Island 5040 5040 1140 850

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.