Reservoir/River Data

Readings for Tuesday, July 28, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,209.4 = 507,400ac-ft (29.1% capacity) 3,212.0 3,217.8 3,227.1
Jeffrey Lake 2,758.6 2,758.6 2,757.7 2,758.3
Johnson Lake 2,618.6 2,617.3 2,618.6 2,618.4
Elwood Reservoir 2,595.0 2,595.8 2,598.8 2,598.6

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 137 117 195 614
Total Outflows from McConaughy 2,980 2,990 1,588 1,742
North Platte at Keystone 1,350 1,350 208 352
Keystone Diversion 1,630 1,640 1,380 1,390
North Platte at North Platte 1,150 894 561 314
South Platte at Roscoe 2.89 2.19 14.1 7.75
South Platte at North Platte 137 117 195 614
Supply Canal Diversion 2,188 2,312 1,407 1,723
Platte at Overton 25.4 25.4 21.8 28.8
Platte at Kearney 19.3 6.86 1850 188
Platte at Grand Island 7.08 35.1 1380 328

Charts

McConaughyInflows.png
McConaughy Historical Inflows
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McConaughy One Month
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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.