UPDATE: A Silver Alert has been canceled after 78-year-old John (Jack) Johnson of Dane County was found safe.
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Johnson is described as a white man with short gray hair and blue eyes. He is 5'8" and weighs approximately 155 pounds.
Johnson was last seen in the Town of Dunkirk, Dane County wearing a red and navy blue fleece, Green Bay Packer coat, gray sweatpants and tennis shoes.
He is believed to be driving a 1992 Chevy suburban with the Wisconsin license plate number KC9A.
The vehicle is described as having a teal hood and amateur radio plates.
If you have any information about Johnson's whereabouts, please contact the Dane County Sheriff's Office at 608-255-2345.