Waushara County, WI

Alerts

Warning Area
County Line

Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.

In effect from Monday 04/20 8:24 AM CDT – Monday 04/20 11:30 PM CDT

Issued by NWS Green Bay WI

The National Weather Service in Green Bay has issued a Flood Warning for the following rivers in Wisconsin

Wolf River at Lake Poygan affecting Waushara and Winnebago Counties.

For the Lower Wolf River...including Shiocton, New London, Lake Poygan...Minor to major flooding is forecast.

What

Minor flooding is occurring.

Where

Wolf River at Lake Poygan.

When

From this morning until further notice.

Impacts

At 5.0 feet, Several inches of water may be surrounding low-lying structures along Lake Poygan and upstream along the Wolf River to Fremont. Local communities from Lake Poygan upstream along the Wolf River to Fremont may consider or already have in effect no wake advisories to protect the shoreline.

Additional Details

- At 7:30 AM CDT Monday the stage was 5.0 feet. - Bankfull stage is 4.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 AM CDT Monday was 5.0 feet. - Forecast...No forecast is available for this location. - Flood stage is 5.0 feet. - Flood History...This crest compares to a previous crest of 4.9 feet on 06/17/2004. - http://www.weather.gov/safety/flood

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive cars through flooded areas.
Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Additional information is available at www.weather.gov.
The next statement will be issued this evening by 1130 PM CDT.


Areas impacted

  • Waushara, WI
  • Winnebago, WI

Tips to stay safe

A Flood Warning means that dangerous flooding is expected or already happening. Take immediate action to protect yourself and your home. 

  • If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • Do not go into any room where electrical cords or outlets are under water. Stay out of water that may have electricity in it!
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

From the forecaster

Tranquil Start To the Week

Created by the NWS Green Bay WFO

4/20/2026 A quiet spring patter is forecast through the first half of this week. Temperatures today will remain a few degrees below normal, but above normal temperatures return Tuesday. Next chance for showers and thunderstorms comes Thursday evening into Friday.

Seven-day weather risk overview

Daily weather risk summary

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Weather forecasting office

Green Bay Forecast Office

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