Reservoir/River Data

Readings for Tuesday, September 16, 2025

Lake & Reservoir Elevations

Location Today (Feet above Sea Level) 1 Week Ago 1 Month Ago 1 Year Ago
Lake McConaughy 3,221.8 = 718,700ac-ft (41.2% capacity) 3,221.7 3,224.8 3,229.1
Jeffrey Lake 2,758.8 2,751.7 2,758.0 2,758.1
Johnson Lake 2,608.4 2,617.3 2,618.5 2,617.8
Elwood Reservoir 2,591.2 2,591.6 2,596.7 2,592.2

River & Canal Flows

Station Today (Cubic Feet per Second) 1 Week Ago 1 Month Ago 1 Year Ago
Inflows to McConaughy 1,510 1,100 571 1,290
Total Outflows from McConaughy 1,035 1,080 1,989 1,038
North Platte at Keystone 310 281 409 451
Keystone Diversion 725 799 1,580 587
North Platte at North Platte 509 368 368 410
South Platte at Roscoe 31.7 39.2 2.48 0.50
South Platte at North Platte 198 145 155 108
Supply Canal Diversion 1,054 1,001 2,020 802
Platte at Overton 687 555 1,840 1,240
Platte at Kearney 834 1280 73.4 251
Platte at Grand Island 1650 499 132 67.2

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.

Colors of Water Tool

Lake McConaughy Weekly Temperature Readings

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