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A line of severe thunderstorms moved across much of central, north central, and eastern WI during the evening on July 28, 2021. Widespread tree and power line damage was reported from north-central Wisconsin (near Tomahawk) south and southeast to Wausau and southern portions of the Fox Valley. Some of the highlights of the event included an EF1 Tornado just southeast of Merrill, and a dramatic storm collision (cell merger) that initiated an intense storm outflow (surge), which produced widespread straight-line wind damage, impacting the city of Ripon and nearby communities. Wisconsin Public Service (WPS) and We Energies reported a combined total of more than 35,000 power outages at the height of the storm.



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