Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Long Duration Rainfall Event

Current Rainfall Timing

High Swim Risk

Remaining Forecast Questions

A long duration rainfall event is expected from now through Sunday. A widespread 1-3 inches of rain is expected to fall during this ~48 hour period, with locally heavier amounts to 5+ inches possible. The heaviest rainfall accumulations and rates within that 48 hour period are expected tonight through noon Saturday, with the highest amounts forecast to occur in a swath from Sauk to Racine County.

Two peaks in rainfall rates will occur, with one peak overnight, and then a secondary peak late Saturday afternoon.

A High Swim Risk is in effect tonight through Saturday night for Lake Michigan beaches in Sheboygan, Ozaukee, Milwaukee, Racine and Kenosha Counties. Persistent east winds, high waves, and dangerous water currents are expected. Stay out of the water!

Rain totals have a bit of a caveat: forecast models continue to disagree on the location of the heaviest rainfall, favoring two scenarios. How the scenarios unfold into tomorrow afternoon will influence rain totals late Saturday afternoon into Sunday as there could be minor last minute shifts in the heavy rain band.

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Dangerous Heat and Heavy Rainfall into the Weekend

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