Reservoir/River Data

Readings for Monday, December 8, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,227.5 = 826,600ac-ft (47.4% capacity) 3,227.1 3,225.7 3,234.8
Jeffrey Lake 2,758.2 2,757.6 2,756.6 2,757.2
Johnson Lake 2,617.3 2,618.1 2,617.2 2,609.8
Elwood Reservoir 2,585.9 2,586.3 2,587.7 2,593.4

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 1,110 1,560 1,200 964
Total Outflows from McConaughy 395 482 331 614
North Platte at Keystone 18 31 331 125
Keystone Diversion 377 451 0 489
North Platte at North Platte 415 422 591 641
South Platte at Roscoe 216 177 36.8 106
South Platte at North Platte 293 243 147 172
Supply Canal Diversion 692 711 953 800
Platte at Overton 733 1,060 781 767
Platte at Kearney N/A N/A 922 691
Platte at Grand Island N/A N/A 1410 1120

Charts

McConaughyInflows.png
McConaughy Historical Inflows
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McConaughy One Month
McConaughyOneYear.png
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.