Fox River →

Fox River near Mchenry, IL

McHenry County, Illinois · USGS 05549500

Latest observation

What this gauge represents: This gauge measures conditions on Fox River at its USGS monitoring location in McHenry County; conditions elsewhere on the waterway may differ.

How to read these numbers
Streamflow (ft³/s or CFS)

How much water moves past the gauge each second. Higher numbers mean more water is moving downstream.

Gauge height (ft)

The water-surface height at this gauge. It is useful for tracking rises, falls and flood thresholds, but it is not the river's total depth.

24-hour change

How much the latest reading has risen or fallen compared with roughly 24 hours earlier.

Historical median

The typical streamflow for this date based on USGS historical statistics. A multiple such as 3× means current flow is about three times the historical median.

River Pulse

Get Water Data's plain-language summary of current flow, historical context and recent direction.

NOAA flood stage

Official action and flood thresholds where available. These levels are specific to each gauge location.

Gauge height and flood stage are station-specific. A 12-foot reading at one gauge should not be directly compared with 12 feet at another.

WATER QUALITY

Current water conditions

Dissolved oxygen
8.5 mg/L
pH
8
Turbidity
10.8 FNU
Specific conductance
666 µS/cm
STATION DETAILS

About this gauge

Site type: Stream
County: McHenry County
Drainage area: 1,250 mi²
Current measurements: 8
DATA SOURCE

Official USGS station

Get Water Data organizes provisional public monitoring data from the U.S. Geological Survey.

View USGS station →
CURRENT MEASUREMENTS

Latest available readings

Chlorophyll
22.1 µg/L
Phycocyanin
1.1 µg/L
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LIVE RIVER CONDITIONS
Fox River near Mchenry, ILUSGS 05549500
STREAMFLOW—
GAUGE HEIGHT4.18 ft