Reservoir/River Data

Readings for Monday, February 23, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,230.2 = 880,000ac-ft (50.5% capacity) 3,230.5 3,229.6 3,236.5
Jeffrey Lake 2,757.0 2,757.3 2,757.4 2,757.7
Johnson Lake 2,616.0 2,616.1 2,616.5 2,616.3
Elwood Reservoir 2,582.0 2,582.2 2,583.4 2,589.5

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 781 888 968 1,210
Total Outflows from McConaughy 565 579 399 719
North Platte at Keystone 290 282 115 21
Keystone Diversion 275 297 284 698
North Platte at North Platte 561 548 1,170 126
South Platte at Roscoe 69.0 124 42.4 158
South Platte at North Platte 194 281 183 93
Supply Canal Diversion 1,106 1,098 1,281 1,021
Platte at Overton 1,280 894 1,360 1,550
Platte at Kearney N/A 1800 N/A 1270
Platte at Grand Island 1830 1320 N/A 652

Charts

McConaughyInflows.png
McConaughy Historical Inflows
McConaughyOneMonth.png
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.