Tornado reported in Outagamie County Tuesday evening

Tornado in Navarino by Fran Letter (WLUK)

Severe thunderstorms rolling across parts of Wisconsin have knocked down trees and power lines and left more than 150,000 utility customers without power.

It's all hands on deck for We Energies crews as they work to restore power ahead of another sweltering day in Wisconsin where the heat and humidity were expected to create heat index temperatures in the triple digits.

We Energies spokesman Brendan Conway said the utility is supplementing crews with workers from other utilities and using contract employees as it works to restore service.

Tornado near Black Creek by Pamela Erickson (WLUK)

Madison-based Alliant Energy and Green Bay-based Wisconsin Public Service also had thousands of customers without power.

The storms erupted quickly across parts of Wisconsin Tuesday evening, feeding off humid unstable air across the region.

A tornado was reported by law enforcement near Black Creek, which is about 25 miles west of Green Bay. There were no immediate reports of damage. A tornado warning was in effect until 6:30 p.m. Tuesday for northeastern Outagamie and eastern Shawano counties.

Severe thunderstorms were also reported in Dane, Rock, Columbia, Sauk, Green and Iowa counties in southern Wisconsin, according to the National Weather Service. Trees and power lines were reported down in communities throughout Dane County.

FREE DOWNLOAD: Get breaking news alerts in the FOX6 News app for iOS or Android

Tuesday was the fifth straight day that severe storms moved across large portions of Wisconsin.

More than 113K without power after storms roll through SE Wisconsin

We Energies crews are working to restore power after strong storms and high winds caused extensive damage across Wisconsin Tuesday night, Aug. 10.

Severe storms cause widespread damage; down trees, power lines

Storms pushed through southeast Wisconsin Tuesday night, Aug. 10 – leaving behind a path of destruction.