Nippersink Creek above Wonder Lake, IL

McHenry County, Illinois · USGS gauge 05548105 · NWS WNNI2 · Nippersink Creek flood status · Illinois river levels

Nearby: river levels near Mchenry

Is Nippersink Creek above Wonder Lake, IL flooding right now?

Nippersink Creek above Wonder Lake, IL measured 6.27 ft on 2026-09-22 20:45:00 UTC. That observation was 2.7 ft below its 9 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
6.27 ft
as of 77 min ago
Streamflow
311 cfs
data refreshed 15 min ago

Minor flooding here begins at 9 ft, with major flooding at 13 ft. The highest crest on record was 14.3 ft on Sun, Jun 11, 1967.

Streamflow outlook

NOAA National Water Model forecast, issued 10 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action8.5 ft2.2 ft below
Minor flood9 ft2.7 ft below
Moderate flood11 ft4.7 ft below
Major flood13 ft6.7 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
14.3 ft1967-06-11
11.63 ft1999-06-13
11.16 ft2019-09-13
10.89 ft2000-06-13
9.92 ft2013-04-18

Nearby gauges

GaugeDistanceCounty
Nippersink Creek below Wonder Lake, IL2.4 miMcHenry County
Nippersink Creek near Greenwood, IL4.2 miMcHenry County
Boone Creek near Mc Henry, IL5.3 miMcHenry County
Fox River at Johnsburg, IL6.8 miMcHenry County
Fox River at Miller Bridge near Mchenry, IL7.4 miMcHenry County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast