Reservoir/River Data

Readings for Monday, June 1, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,225.1 = 780,400ac-ft (44.8% capacity) 3,227.2 3,229.9 3,235.5
Jeffrey Lake 2,758.5 2,758.4 2,757.9 2,758.0
Johnson Lake 2,618.2 2,618.5 2,617.3 2,618.2
Elwood Reservoir 2,600.9 2,600.5 2,596.0 2,598.1

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 125 150 278 982
Total Outflows from McConaughy 2,980 2,970 730 2,790
North Platte at Keystone 1,250 1,250 204 1,040
Keystone Diversion 1,730 1,720 526 1,750
North Platte at North Platte 373 1,250 390 1,250
South Platte at Roscoe 20.6 30.0 41.1 101
South Platte at North Platte 162 152 153 302
Supply Canal Diversion 2,299 2,293 1,242 2,266
Platte at Overton 2,120 2,130 1,010 2,080
Platte at Kearney 1480 1340 38.1 2330
Platte at Grand Island 1070 1070 137 2380

Charts

McConaughyInflows.png
McConaughy Historical Inflows
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McConaughy One Month
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McConaughy One Year
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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.