Reservoir/River Data

Readings for Tuesday, June 23, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,218.5 = 659,300ac-ft (37.8% capacity) 3,220.5 3,227.8 3,231.8
Jeffrey Lake 2,758.3 2,758.5 2,758.2 2,758.0
Johnson Lake 2,618.2 2,618.2 2,618.6 2,618.6
Elwood Reservoir 2,599.0 2,599.6 2,600.2 2,598.1

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 94 145 199 421
Total Outflows from McConaughy 2,148 3,000 3,010 1,958
North Platte at Keystone 398 1,210 1,260 188
Keystone Diversion 1,750 1,790 1,750 1,770
North Platte at North Platte 1,210 1,250 807 974
South Platte at Roscoe 3.80 6.92 35.6 97.8
South Platte at North Platte 142 139 146 192
Supply Canal Diversion 2,272 2,275 1,758 2,257
Platte at Overton 2,150 2,160 1,970 2,060
Platte at Kearney 1350 1380 1370 1420
Platte at Grand Island 1960 1410 307 1620

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.