was devastating. One person was killed by a lightning strike in the Detroit area. In Michigan, over 270,000 people were without power at the storm's peak. Wisconsin Significant wind damage was reported in the afternoon of July 17 in parts of Wisconsin, especially the northeastern part around Sheboygan and Manitowoc. High winds knocked out power to at least 12,000 people and even knocked vehicles off Interstate 43. Winds were officially estimated to be at least 100 km/h (60 mph) but unofficial readings exceeded 120 km/h (75 mph) in Kohler. Some thought it was a tornado that hit but it was later confirmed to have been straight-line winds like most of the derecho. Significant damage was reported in the city of Manitowoc, where hundreds of trees, power poles, and signs were blown down, knocking out power to hundreds of homes. Winds unofficially reached 120 to 130 km/h (60 to 65 mph) at the storm's peak. No injuries were reported in the state. Illinois Damage was reported in extreme northern Illinois along the same line. Trees and power lines were knocked over in much of the northernmost areas, some landing on power lines and buildings. Extreme heat compounded the problem, forcing emergencies to be declared in several communities. More than 110,000 people were without power at the peak of the storm in Illinois, from Lake County to the Mississippi River. Peak wind gusts as high as 110 km/h (70 mph) were recorded in Stephenson. Some of the hardest hit areas were Crystal Lake, Mundelein, Rockford, Lake Zurich and Buffalo Grove. Damage was reported as far south as the city of Chicago, particularly on the Northwest Side. Numerous houses lost their roof as a result of the winds. Several people were injured, some due to lightning strikes. Iowa One tornado touched down at Tama, along with numerous hail and high wind reports in the eastern part of the state. Atlantic Coast derecho (July 18, 2006) The same system refired on July 18 over the Northeastern United States. It produced similar damage over a large swath of New England and the Mid-Atlantic states. Event Like the system in Ontario but unlike the squall line of the upper Midwest, this was a continuous series of storms that produced widespread damage along its path. The most significant line began in western Maryland, then tracked north-northeastward into southeastern Pennsylvania, northern New Jersey and the northern suburbs of