Reservoir/River Data

Readings for Friday, June 19, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,219.5 = 677,000ac-ft (38.8% capacity) 3,221.8 3,228.7 3,232.6
Jeffrey Lake 2,758.4 2,758.4 2,758.2 2,758.0
Johnson Lake 2,618.2 2,618.1 2,616.4 2,618.1
Elwood Reservoir 2,599.3 2,600.0 2,599.4 2,598.5

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 107 289 148 550
Total Outflows from McConaughy 2,930 3,030 1,942 3,210
North Platte at Keystone 1,160 1,220 242 1,410
Keystone Diversion 1,770 1,810 1,700 1,800
North Platte at North Platte 1,090 1,270 300 1,780
South Platte at Roscoe 3.21 9.59 28.1 92.2
South Platte at North Platte 128 141 158 194
Supply Canal Diversion 2,265 2,271 1,964 2,243
Platte at Overton 2,150 2,160 1,880 2,070
Platte at Kearney 1260 1590 59.8 1360
Platte at Grand Island 1260 1850 104 104

Charts

McConaughyInflows.png
McConaughy Historical Inflows
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McConaughy One Month
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McConaughy One Year
McConaughySince1941.png
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.