(WLUK) -- The National Weather Service says the warning includes the East River running through parts of Green Bay, De Pere, Allouez and Bellevue.
The warning is in effect until 3:45 am.
The river is rising rapidly, closing several nearby roads.
There are also flood warnings for the East Fond du Lac River, Manitowoc River, Sheboygan River, and the South Rock River near Waupun.
Additional flooding is possible near any creeks and streams also low lying areas.
An ice jam broke loose on Duck Creek near Freedom that could cause some flooding in Oneida, West Green Bay, and Howard near Duck Creek as that water heads for the Bay.
Turn around, don't drown is the message.
Officials warn to never drive in flooded areas. Your car could stall.
Do not drive or walk through flooded areas. Just six inches of fast-moving water can knock over an adult and 12 inches can carry away a small car. Even if water is not moving, floodwaters can conceal damage to pavement or other hazards that may be lurking beneath the surface. If you encounter floodwaters, find a different route.
Do you live in a flood plain, have a basement, or live near a source of water? These are all things to consider when examining the potential for flooding on your property. Plan with your family for what you will do if the floodwaters begin to rise.
If you have gutters, make sure they are kept clean and the downspouts are directing water away from your foundation. Repair cracks in your foundation and improve your grading so water flows away from your house. Cover window wells to keep water from building up inside them. Install safety valves on pipes bringing water into your home to help guard against backups.
Just an inch of water in a home can cause thousands of dollars in damage, which many homeowners and renters insurance policies will not cover. Evaluate your current coverage and consider purchasing a flood insurance policy. Most flood coverage takes effect 30 days after purchase, so don’t wait until there’s a risk of flooding to act.