Reservoir/River Data

Readings for Monday, September 15, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,221.8 = 718,700ac-ft (41.2% capacity) 3,221.7 3,225.0 3,229.0
Jeffrey Lake 2,758.9 2,753.3 2,758.4 2,757.9
Johnson Lake 2,611.1 2,618.2 2,618.3 2,617.9
Elwood Reservoir 2,591.2 2,591.7 2,596.8 2,592.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 1,420 1,070 636 1,150
Total Outflows from McConaughy 1,094 1,236 2,035 1,146
North Platte at Keystone 297 310 405 452
Keystone Diversion 797 926 1,630 694
North Platte at North Platte 446 403 409 416
South Platte at Roscoe 31.7 42.5 3.48 0.39
South Platte at North Platte 198 158 157 105
Supply Canal Diversion 1,062 937 2,076 843
Platte at Overton 648 929 1,880 1,150
Platte at Kearney 1840 1340 147 376
Platte at Grand Island 1430 482 96.8 93.0

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.