River Conditions
Illustrated map of Lake Michigan at Chicago

River stage

Wonder Lake, Nippersink Creek

River level
5.02 ft
Status
Below flood stage
7-day change
-0.30 ft
Recent high
7.07 ft
Recent low
4.52 ft

Last reported 2026-10-13 | NWS WNNI2

30-day change
+0.33 ft
Average
5.00 ft
Readings
122
Data span
122 days
Record crest
14.30 ft

In brief

The Nippersink Creek at Wonder Lake, IL read 5.02 ft on Oct 13, 2026, 3.48 ft below action stage. That is 0.33 ft higher than 30 days earlier.

Source: National Weather Service gauge WNNI2

River level timeline

4.25.46.67.89.0SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13ACTION 8.50 ftHIGH 7.07LOW 4.695.06 ftLAST READING

Stage threshold profile

Action stage 8.50 ftMinor flooding 9.00 ftModerate flooding 11.00 ftMajor flooding 13.00 ft CURRENT 5.02 ft

Highest crests on record

RankCrestDate
1 14.30 ft 1967-06-11
2 11.63 ft 1999-06-13
3 11.16 ft 2019-09-13
4 10.89 ft 2000-06-13
5 9.92 ft 2013-04-18
6 9.67 ft 2018-02-20
7 9.48 ft 2020-05-17
8 9.20 ft 1997-02-21

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 9.00 ft

    Water overtops low-lying banks along Wonder Lake. Low-lying portions of Jacobson Park threatened in Wonder Lake.

  2. 11.00 ft

    A few low-lying residences threatened along East Lake Shore Drive near Nantucket Drive in Wonder Lake.

  3. 12.50 ft

    East Lakeshore Drive threatened near Lakeview Drive in Wonder Lake.

  4. 13.00 ft

    A few residences threatened along West Lake Shore Drive and Westwood Drive in Wonder Lake. West Lake Shore Drive threatened near Sunset Drive and Nundra Drive in Wonder Lake. East Lake Shore Drive threatened near Nantucket Drive in Wonder Lake.

  5. 13.50 ft

    A few residences threatened along West Lake Shore Drive near Sunset Drive and near Nundra Drive in Wonder Lake. A few residences threatened along East Lake Shore Drive near Deep Spring Road in Wonder Lake. Thompson Road threatened near the creek in Wonder Lake.

  6. 14.00 ft

    Water may near the top of Wonder Lake Dam. Numerous residences threatened along Wonder Lake.

  7. 15.00 ft

    Numerous sections of West Lake Shore Drive, East Lake Shore Drive, and nearby side streets threatened in Wonder Lake. Greenwood Road threatened near the creek in Greenwood.

  8. 16.00 ft

    Wonder Lake Road threatened along Wonder Lake.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Nippersink Creek flooding at Wonder Lake?

No. The Nippersink Creek at Wonder Lake is at 5.02 ft, 3.48 ft below action stage.

What is the flood stage at Wonder Lake?

The National Weather Service sets action stage 8.5 ft, minor flooding 9 ft, moderate flooding 11 ft and major flooding 13 ft.

What is the highest the Nippersink Creek has been at Wonder Lake?

The highest crest on record is 14.3 ft, on 1967-06-11.

Is the Nippersink Creek high or low right now at Wonder Lake?

At 5.02 ft it is higher than 65% of readings over the last 122 days.

Stage and flood information from the NOAA National Weather Service (gauge WNNI2); daily history from the U.S. Geological Survey (site 05548105). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.