Reservoir/River Data

Readings for Wednesday, August 12, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,204.9 = 439,500ac-ft (25.2% capacity) 3,207.2 3,214.5 3,225.1
Jeffrey Lake 2,758.5 2,757.6 2,757.7 2,758.2
Johnson Lake 2,617.7 2,618.1 2,618.8 2,617.7
Elwood Reservoir 2,592.8 2,595.4 2,596.9 2,597.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 107 141 222 652
Total Outflows from McConaughy 2,630 2,286 2,140 2,240
North Platte at Keystone 1,050 696 540 680
Keystone Diversion 1,580 1,590 1,600 1,560
North Platte at North Platte 712 610 407 813
South Platte at Roscoe 0.07 0.07 6.58 14.2
South Platte at North Platte 107 141 222 652
Supply Canal Diversion 2,135 1,774 1,724 2,269
Platte at Overton N/A 17.8 22.6 24.0
Platte at Kearney 7.71 63.5 82.9 128
Platte at Grand Island 32.1 212 161 180

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.