Reservoir/River Data

Readings for Saturday, August 22, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,203.3 = 416,600ac-ft (23.9% capacity) 3,204.4 3,211.7 3,223.4
Jeffrey Lake 2,758.1 2,758.6 2,758.6 2,757.9
Johnson Lake 2,618.2 2,618.1 2,617.3 2,617.7
Elwood Reservoir 2,592.6 2,591.8 2,595.7 2,595.0

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 431 442 124 397
Total Outflows from McConaughy 1,484 2,290 3,000 1,988
North Platte at Keystone 374 820 1,360 408
Keystone Diversion 1,110 1,470 1,640 1,580
North Platte at North Platte 578 876 893 297
South Platte at Roscoe 1.19 1.19 0.95 1.88
South Platte at North Platte 431 442 124 397
Supply Canal Diversion 1,700 2,191 2,324 2,075
Platte at Overton 22.3 29.4 18.6 25.8
Platte at Kearney 120 31.1 12.9 26.0
Platte at Grand Island 569 109 37.6 34.9

Charts

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