Reservoir/River Data

Readings for Monday, October 6, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,223.9 = 757,700ac-ft (43.5% capacity) 3,223.1 3,221.8 3,231.5
Jeffrey Lake 2,758.3 2,757.4 2,753.8 2,757.7
Johnson Lake 2,617.7 2,616.1 2,618.3 2,618.0
Elwood Reservoir 2,589.9 2,590.4 2,591.8 2,592.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 923 971 1,020 1,370
Total Outflows from McConaughy 311 284 1,284 179
North Platte at Keystone 185 38 309 179
Keystone Diversion 126 246 975 0
North Platte at North Platte 485 400 526 453
South Platte at Roscoe 108 108 46.0 48.6
South Platte at North Platte 152 144 121 82
Supply Canal Diversion 785 717 1,401 583
Platte at Overton 627 597 1,460 610
Platte at Kearney 77.2 108 708 206
Platte at Grand Island 253 323 711 146

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
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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.