SNOFLO



ARKANSAS RIVER

RIVER LEVELS
April 29, 2025


Total streamflow across the Arkansas River was last observed at 203,738 cfs, and is expected to yield approximately 404,110 acre-ft of water today; about 207% of normal. River levels are high. Average streamflow for this time of year is 98,360 cfs, with recent peaks last observed on 2019-05-28 when daily discharge volume was observed at 1,992,683 cfs.

Maximum discharge along the river is currently at the Arkansas River At Ft. Smith reporting a streamflow rate of 118,000 cfs. However, the streamgauge with the highest stage along the river is the Arkansas River Near Muskogee with a gauge stage of 21.61 ft. This river is monitored from 39 different streamgauging stations along the Arkansas River, the highest being situated at an altitude of 9,720 ft, the Arkansas River Near Leadville.

Last Updated 2025-04-29
Discharge Volume 404,110 ACRE-FT
Streamflow 203,738.3 cfs
-15265.1 cfs (-6.97%)
Percent of Normal 207.14%
Maximum 1,992,683.0 cfs
2019-05-28
Seasonal Avg 98,360 cfs
       
River Streamflow Levels
Created with Highcharts 8.0.0Total River Discharge (cfs)20. Apr21. Apr22. Apr23. Apr24. Apr25. Apr26. Apr27. Apr28. Apr29. Apr0100k200k300k
Seasonal Discharge Comparison
Created with Highcharts 8.0.0Total River Discharge (cfs)1. Jan1. Feb1. Mar1. Apr1. May1. Jun1. Jul1. Aug1. Sep1. Oct1. Nov1. Dec1. Jan0200k400k600k
Maximum Streamflow Discharge
Created with Highcharts 8.0.0YearAnnual Peak Discharge(cfs)200820102012201420162018202020222024202610k100k1M10M

Weather Forecast

Created with Highcharts 8.0.0humidity1.25"1.25"2.65"2.65"0.93"0.93"1.17"1.17"1.46"1.46"1.4"1.4"1.61"1.61"0.05"0.05"0.4"0.4"1.64"1.64"1.32"1.32"0.94"0.94"0.3"0.3"0.74"0.74"1.35"1.35"0.21"0.21"0.05"0.05"0.04"0.04"Wed Apr 30Thu May 1Fri May 2Sat May 3Sun May 464°128°192°100%0%50%150%
Streamflow Elevation Profile
Created with Highcharts 8.0.0

The Arkansas River is a major tributary of the Mississippi River. It generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's source basin lies in the western United States in Colorado, specifically the Arkansas River Valley, where the headwaters derive from the snowpack in the Sawatch and Mosquito mountain ranges. It then flows east into the Midwest via Kansas, and finally into the South through Oklahoma and Arkansas.
At 1,469 miles (2,364 km), it is the sixth-longest river in the United States, the second-longest tributary in the Mississippi–Missouri system, and the 45th longest river in the world. Its origin is in the Rocky Mountains in Lake County, Colorado, near Leadville. In 1859, placer gold discovered in the Leadville area brought thousands seeking to strike it rich, but the easily recovered placer gold was quickly exhausted. The Arkansas River's mouth is at Napoleon, Arkansas, and its drainage basin covers nearly 170,000 square miles (440,000 km2). Its volume is much smaller than the Missouri and Ohio Rivers, with a mean discharge of about 40,000 cubic feet per second (1,100 m3/s).
The Arkansas from its headwaters to the 100th meridian west formed part of the U.S.–Mexico border from the Adams–Onís Treaty (in force 1821) until the Texas Annexation or Treaty of Guadalupe Hidalgo.