Reservoir/River Data

Readings for Tuesday, August 4, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,207.4 = 476,500ac-ft (27.3% capacity) 3,209.4 3,216.6 3,226.3
Jeffrey Lake 2,758.3 2,758.5 2,758.4 2,757.7
Johnson Lake 2,618.3 2,618.6 2,618.2 2,618.3
Elwood Reservoir 2,595.3 2,595.0 2,597.6 2,598.1

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 179 163 260 1,120
Total Outflows from McConaughy 2,286 3,000 2,537 1,762
North Platte at Keystone 706 1,390 867 352
Keystone Diversion 1,580 1,610 1,670 1,410
North Platte at North Platte 560 1,040 650 436
South Platte at Roscoe 0.07 1.05 14.2 11.5
South Platte at North Platte 179 163 260 1,120
Supply Canal Diversion 1,723 2,121 1,945 1,500
Platte at Overton 21.8 25.0 23.0 24.8
Platte at Kearney 108 11.0 85.4 368
Platte at Grand Island 275 8.23 271 700

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.