Reservoir/River Data

Readings for Saturday, September 13, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,221.6 = 715,100ac-ft (41% capacity) 3,221.8 3,225.2 3,229.2
Jeffrey Lake 2,757.8 2,753.8 2,758.4 2,757.7
Johnson Lake 2,612.8 2,618.3 2,618.1 2,617.8
Elwood Reservoir 2,591.3 2,591.8 2,597.1 2,592.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 1,190 1,040 669 1,120
Total Outflows from McConaughy 1,111 1,284 1,907 1,202
North Platte at Keystone 302 309 457 456
Keystone Diversion 809 975 1,450 746
North Platte at North Platte 357 521 739 377
South Platte at Roscoe 12.8 46.0 5.48 0.90
South Platte at North Platte 166 133 164 111
Supply Canal Diversion 926 1,401 2,270 845
Platte at Overton 503 1,460 2,100 1,250
Platte at Kearney 1550 708 94.5 358
Platte at Grand Island 642 660 137 58.3

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.