Reservoir/River Data

Readings for Saturday, May 16, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,229.1 = 858,100ac-ft (49.2% capacity) 3,229.6 3,230.8 3,238.3
Jeffrey Lake 2,758.5 2,756.3 2,757.1 2,758.3
Johnson Lake 2,615.6 2,617.5 2,617.8 2,616.2
Elwood Reservoir 2,598.7 2,597.7 2,590.1 2,596.9

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 170 217 387 393
Total Outflows from McConaughy 1,132 673 808 2,870
North Platte at Keystone 242 246 152 1,130
Keystone Diversion 890 427 656 1,740
North Platte at North Platte 228 290 260 943
South Platte at Roscoe 28.5 39.6 58.4 25.1
South Platte at North Platte 148 139 126 153
Supply Canal Diversion 1,492 1,010 1,023 1,997
Platte at Overton 1,340 749 778 1,990
Platte at Kearney 18.5 25.9 60.9 50.1
Platte at Grand Island 32.1 74.9 249 25.8

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.