Reservoir/River Data

Readings for Wednesday, July 30, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,227.0 = 816,900ac-ft (46.9% capacity) 3,228.1 3,231.4 3,233.4
Jeffrey Lake 2,758.8 2,757.7 2,758.7 2,758.5
Johnson Lake 2,618.0 2,617.9 2,618.1 2,618.0
Elwood Reservoir 2,598.5 2,599.0 2,598.7 2,595.8

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 590 323 492 704
Total Outflows from McConaughy 1,819 1,789 1,566 2,409
North Platte at Keystone 409 409 136 799
Keystone Diversion 1,410 1,380 1,430 1,610
North Platte at North Platte 300 322 920 785
South Platte at Roscoe 4.22 4.22 128 0.74
South Platte at North Platte 196 199 449 123
Supply Canal Diversion 1,869 1,503 2,222 2,190
Platte at Overton 1,680 1,700 2,010 2,050
Platte at Kearney N/A 1030 1940 107
Platte at Grand Island 516 606 2370 254

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.

Lake McConaughy Weekly Temperature Readings

 Data is acquired from Nebraska DNR and USGS web services and CNPPID historical readings.