Reservoir/River Data

Readings for Wednesday, July 15, 2026

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,213.8 = 578,800ac-ft (33.2% capacity) 3,215.6 3,220.8 3,229.3
Jeffrey Lake 2,758.2 2,758.4 2,758.4 2,758.3
Johnson Lake 2,618.2 2,618.2 2,618.3 2,618.6
Elwood Reservoir 2,596.5 2,597.3 2,599.7 2,599.6

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 323 151 178 162
Total Outflows from McConaughy 2,473 2,674 3,030 1,698
North Platte at Keystone 813 864 1,220 348
Keystone Diversion 1,660 1,810 1,810 1,350
North Platte at North Platte 426 662 1,290 308
South Platte at Roscoe 4.40 10.1 8.07 24.0
South Platte at North Platte 85 107 140 163
Supply Canal Diversion 2,052 2,020 2,189 1,691
Platte at Overton 1,740 1,900 2,160 1,630
Platte at Kearney 56.7 181 1600 272
Platte at Grand Island 143 232 1530 660

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.