Reservoir/River Data

Readings for Monday, March 16, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,231.0 = 896,100ac-ft (51.4% capacity) 3,230.9 3,230.4 N/A
Jeffrey Lake 2,758.2 2,757.3 2,757.3 2,757.3
Johnson Lake 2,618.2 2,618.1 2,616.9 2,616.3
Elwood Reservoir 2,580.6 2,581.0 2,582.2 2,588.4

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 893 898 898 879
Total Outflows from McConaughy 388 394 556 394
North Platte at Keystone 278 283 269 26
Keystone Diversion 110 111 287 368
North Platte at North Platte 610 632 529 380
South Platte at Roscoe 23.6 36.5 137 114
South Platte at North Platte 172 154 264 231
Supply Canal Diversion 909 950 1,022 1,136
Platte at Overton 753 805 898 802
Platte at Kearney 386 580 1720 1160
Platte at Grand Island 771 551 924 714

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.