Reservoir/River Data

Readings for Friday, October 23, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,203.0 = 412,400ac-ft (23.7% capacity) 3,202.5 3,201.3 3,224.7
Jeffrey Lake 2,758.1 2,758.1 2,758.3 2,758.0
Johnson Lake 2,618.3 2,618.0 2,618.2 2,617.9
Elwood Reservoir 2,583.0 2,583.0 2,584.9 2,588.8

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 533 475 362 1,160
Total Outflows from McConaughy 0 0 12 327
North Platte at Keystone 0 0 0 327
Keystone Diversion 0 0 12 0
North Platte at North Platte 285 320 406 555
South Platte at Roscoe 34.0 34.0 15.2 90.0
South Platte at North Platte 533 475 362 1,160
Supply Canal Diversion 584 580 714 954
Platte at Overton 15.8 15.8 16.3 12.7
Platte at Kearney 366 186 50.5 1570
Platte at Grand Island N/A 323 51.4 366

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.