Heat Advisory
2026-09-04T20:00:00-05:00

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of central, eastern, north central, southeast, southwest, and western Arkansas. * WHEN...Until 8 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

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Arkansas

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Heat Advisory
Until 2026-09-02T07:00:00-05:00 • National Weather Service
* WHAT...Heat index values up to 109 expected. * WHERE...Portions of central, eastern, north central, southeast, southwest, and western Arkansas. * WHEN...Until 8 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

ILLINOIS BAYOU NEAR SCOTTSVILLE, AR

Realtime Data • Report • Conditions

7

Discharge (cfs)

4.4

Gauge Height (ft)

USGS 07257500

Streamflow discharge was last observed at 7 cfs, and a gauge height of 4.38 feet. With the % decrease since yesterday, the streamflow average over the past 10 days is 9 .

Weather today, Tomorrow,

The constituents of the flow include water from precipitation and runoff from surrounding areas. There are no major dams on the Illinois Bayou, but there are several smaller dams on its tributaries. The flow of the Illinois Bayou is highly seasonal, with the highest flows occurring in the spring during the rainy season and the lowest flows occurring in the summer and fall. One interesting fact about the hydrology of the Illinois Bayou is that it is home to several species of fish that are unique to the region.

September 1, 2026

Elevation	459.0 ft
Last Updated
Gage height, ft	4.38 ft
Streamflow, ft³/s	6.79 ft3/s
Chloride, water, filtered, mg/L	16.7 mg/l
Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C	43.0 uS/cm @25C
Dissolved oxygen, water, unfiltered, mg/L	9.1 mg/l
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU)	0.4 FNU
pH, water, unfiltered, field, standard units	6.3 std units
Temperature, water, degC	9.6 deg C
Precipitation, total, in	0.0 in
Percent of Normal	95%
Year Over Year Average	7 cfs
24hr Flow Prediction	cfs
Maximum Recorded	46,500 cfs
Geolocation	35.47, -93.04

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Illinois Bayou Near Scottsville, Ar Realtime Data

ILLINOIS BAYOU NEAR SCOTTSVILLE, AR

Realtime Data • Report • Conditions

7

Discharge (cfs)

4.4

Gauge Height (ft)

September 1, 2026

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Oceanic Nino Index

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Illinois Bayou Near Scottsville, Ar Realtime Data

ILLINOIS BAYOU NEAR SCOTTSVILLE, AR

Realtime Data • Report • Conditions

7

Discharge (cfs)

4.4

Gauge Height (ft)

September 1, 2026

Seasonal Comparison

Oceanic Nino Index

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