Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

What's New?

Flood Inundation Maps are now available for the Wisconsin River at Portage. These maps were created in partnership with the DNR. These interactive maps will help convey the impacts of flooding for local officials, property owners and motorists. Use these maps to answer questions like, "What roads may be impacted at 17 feet, and where are alternate safer routes?" and "If the river reaches 18 feet, how may my property be affected?".

To view all locations with flood inundation mapping click here.

How To Use it

Here is a video demonstration of how to use the maps. Note, graphics and images in the video are not a current forecast and are for demonstration purposes only.

Where are The Maps?

Go to the main NWS Milwaukee webpage (weather.gov/milwaukee) and hover over Rivers and Lakes. Then, click the link that pops up and that is titled National Water Prediction Service (NWPS). (Note, this page is in transition to a newer page. In late May, clicking Rivers and Lakes will go directly to the National Water Prediction Service page.)

weather.gov/milwaukee

Then select the gauge location where flood inundation mapping is available and Select the Full Information tab:

Scroll down on the new page until you see the map. Then select 'Activate FIM Gauge'.

To see all locations where inundation mapping is available select 'Only display Partner FIM Gauges'.

Contact sarah.marquardt@noaa.gov with any questions.

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Tracking Storm System Across the Eastern U.S.

Portage Flood Inundation Maps