Reservoir/River Data

Readings for Sunday, August 2, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,208.0 = 485,600ac-ft (27.9% capacity) 3,210.1 3,217.1 3,226.5
Jeffrey Lake 2,758.6 2,758.3 2,758.0 2,757.0
Johnson Lake 2,618.5 2,618.2 2,618.1 2,618.2
Elwood Reservoir 2,595.0 2,595.2 2,597.0 2,598.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 278 128 230 1,010
Total Outflows from McConaughy 2,287 3,050 2,466 1,769
North Platte at Keystone 657 1,410 746 359
Keystone Diversion 1,630 1,640 1,720 1,410
North Platte at North Platte 657 1,220 324 430
South Platte at Roscoe 2.41 3.16 15.0 9.52
South Platte at North Platte 278 128 230 1,010
Supply Canal Diversion 1,756 2,301 1,674 1,425
Platte at Overton 23.3 24.8 20.2 22.5
Platte at Kearney 641 27.9 143 287
Platte at Grand Island 253 12.3 334 328

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.