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Mendota Hills Wind Farm in northern Illinois. Wind power in Illinois provided nearly 10% of the state's generated electrical power in 2020 powering 1,231,900 homes. [1] At the end of 2020, Illinois had 6,300 megawatts (MW) of wind power installed, ranking fifth among states for installed wind turbine capacity. [2]
An intense derecho affected much of the Midwestern United States on August 10–11, 2020, primarily eastern Nebraska, Iowa, Illinois, Wisconsin, and Indiana. It caused high winds and spawned an outbreak of weak tornadoes. Some areas reported torrential rain and large hail. [2][7][1]
The August 2020 Midwest Derecho delivered a maximum measured wind speed of 56 m/s (109 kn), with damage-estimated speeds as high as 63 m/s (120 kn) in the Cedar Rapids, Iowa area. [27] The storm was referred to as one of the largest "land-based hurricanes" in recorded history spawning 17 confirmed tornadoes across Wisconsin, Illinois, and Indiana.
April 9, 1991. Southern Great Lakes Derecho of 1991. July 7–8, 1991. Pakwash Forest Blowdown. July 18, 1991. near Ear Falls, Ontario – 191,400 hectares of forest blown down, in a line some 40 km (25 miles) long. Post-damage survey estimated peak wind speeds of over 100 mph (160 km/h) [8] 1993 Storm of the Century.
The SPC logged 64 hurricane-force, 75 mph (121 km/h) or greater wind reports, making December 15 the most prolific wind event in United States history at the time. The record was broken with 68 hurricane-force wind gusts on May 12, 2022. [6] [29] [30] First reports of damage filtered in from western and central Kansas.
Illinois has a maximum north–south distance of 390 miles (630 km) and 210 miles (340 km) east-west. Total area is 57,918 square miles (150,010 km 2), ranked 25th in size of the 50 states. Water area is 2,325 square miles (6,020 km 2); Lake Michigan accounts for most of this. Charles Mound in the northwest Driftless Area is the highest point ...
Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes. Maps using isotherms show temperature gradients, [2] which can help locate weather fronts. Isotach maps, analyzing lines of equal wind speed, [3] on a constant pressure surface of 300 or 250 hPa show where the jet stream is located.
The Twin Groves Wind Farm lies in eastern McLean County just east of Bloomington on Illinois State Route 9. The wind farm consists of 240 Vestas 1.65 MW wind turbines and is owned and operated by EDP Renewables North America. [1] Total cost of Twin Groves was approximately $700 million. [5] The towers are spread out over 22,000 acres (8,900 ha ...