Heat Advisory
2026-07-14T21:00:00-05:00

* WHAT...Heat index values of 95 to 105 expected. Highest heat index values in far northeast Wisconsin. Overnight heat indices will drop to 70 to 75 degrees, which will still be hazardous for anyone without shelter after the heat in the afternoon. * WHERE...Portions of central, east central, north central, and northeast Wisconsin. * WHEN...Until 9 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

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Wisconsin

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Heat Advisory
Until 2026-07-13T18:00:00-05:00 • National Weather Service
* WHAT...Heat index values of 95 to 105 expected. Highest heat index values in far northeast Wisconsin. Overnight heat indices will drop to 70 to 75 degrees, which will still be hazardous for anyone without shelter after the heat in the afternoon. * WHERE...Portions of central, east central, north central, and northeast Wisconsin. * WHEN...Until 9 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

FOX RIVER AT OIL TANK DEPOT AT GREEN BAY, WI

Realtime Data • Report • Conditions

606

Discharge (cfs)

579.3

Gauge Height (ft)

USGS 040851385

Streamflow discharge was last observed at 606 cfs, and a gauge height of 579.25 feet. With the % decrease since yesterday, the streamflow average over the past 10 days is 7,052 .

Weather today, Tomorrow,

It is influenced by tributaries such as the East River and the Suamico River, and the dam at De Pere can affect water levels. Seasonal trends show increased flow in spring due to snowmelt and rain, and decreased flow in winter due to ice formation. Interestingly, the Fox River was once heavily polluted but has undergone significant cleanup efforts, leading to improved water quality and increased recreational opportunities.

July 13, 2026

Elevation	576.0 ft
Last Updated
Mean water velocity for discharge computation, feet per second	0.21 ft/sec
Gage height, ft	579.25 ft
Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence (IVF), relative fluorescence units (RFU)	3.1 RFU
Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence (IVF), concentration estimated from reference material, micrograms per liter	12.63 ug/l
Streamflow, ft³/s	606.0 ft3/s
Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 ±15 nm, emission at 685 ±20 nm, micrograms per liter	2.04 ug/l
Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C	391.0 uS/cm @25C
Dissolved oxygen, water, unfiltered, mg/L	8.4 mg/l
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU)	27.7 FNU
pH, water, unfiltered, field, standard units	8.8 std units
Temperature, water, °C	27.5 deg C
Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 ±15 nm, emission at 685 ±20 nm, relative fluorescence units (RFU)	2.07 RFU
Stream water level elevation above NAVD 1988, in ft	579.7 ft
Percent of Normal	11%
Year Over Year Average	5,540 cfs
24hr Flow Prediction	cfs
Maximum Recorded	37,000 cfs
Geolocation	44.53, -88.01

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Fox River At Oil Tank Depot At Green Bay, Wi Realtime Data

FOX RIVER AT OIL TANK DEPOT AT GREEN BAY, WI

Realtime Data • Report • Conditions

606

Discharge (cfs)

579.3

Gauge Height (ft)

July 13, 2026

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Fox River At Oil Tank Depot At Green Bay, Wi Realtime Data

FOX RIVER AT OIL TANK DEPOT AT GREEN BAY, WI

Realtime Data • Report • Conditions

606

Discharge (cfs)

579.3

Gauge Height (ft)

July 13, 2026

Seasonal Comparison

Oceanic Nino Index

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