Reservoir/River Data

Readings for Monday, July 14, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,229.6 = 868,000ac-ft (49.8% capacity) 3,230.4 3,234.0 3,236.1
Jeffrey Lake 2,758.6 2,758.1 2,758.2 2,758.3
Johnson Lake 2,618.8 2,618.5 2,617.6 2,618.1
Elwood Reservoir 2,599.6 2,600.1 2,598.9 2,597.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 319 411 600 433
Total Outflows from McConaughy 1,780 1,527 3,000 580
North Platte at Keystone 410 217 1,190 580
Keystone Diversion 1,370 1,310 1,810 N/A
North Platte at North Platte 377 378 1,390 376
South Platte at Roscoe 41.3 73.7 113 9.51
South Platte at North Platte 177 222 232 137
Supply Canal Diversion 1,745 1,655 2,252 1,548
Platte at Overton 1,750 1,630 2,070 1,610
Platte at Kearney N/A 1460 1700 369
Platte at Grand Island N/A 1110 1750 908

Charts

McConaughyInflows.png
McConaughy Historical Inflows
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McConaughy One Month
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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.

Lake McConaughy Weekly Temperature Readings

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