Courtesy Jeff Wood. As of October 2020, it is the most costly thunderstorm in US history. Powerful Derecho Leaves Path of Devastation Across Midwest. Before I get into what they are, let’s discuss the current meteorological circumstances involving this derecho. Video from Huxley, Iowa. Toggle between August 2, 16, and 23, 2020 showing a drop in the USDA Good to Excellent Corn Condition in Iowa. Support WHO’s work to track the spread; to ensure patients get care and frontline workers get supplies; and to accelerate efforts to develop vaccines, tests, and treatments. A weather station on the northside of Chicago near Lincoln Square had a gust to 85 mph. RB. Video from Huxley, Iowa. August 11, 2020 at 7:25 am. CTRL + SPACE for auto-complete. A derecho raced eastward across the Midwest on Monday, Aug. 10, 2020, where it caused widespread damage to trees, structures and knocked out power to more than one million. Gensini said this derecho will go down as one of the strongest ones in recent history and be one of the worst weather events of 2020 for the nation. River Summary, PAST WEATHER Winds over 70 … Courtesy of Kip Ladage, Corn damaged near Adel. Tue., Aug. 11, 2020 timer 4 min. NWS Quad Cities  |  NWS Chicago  |  NWS Milwaukee, NWS Central Illinois  |  NWS Northern Indiana  |  NWS Indianapolis, Wind Gusts Greater than 70 mph in NWS Des Moines' area of responsibility, Wind damaged grain bin in Tama County. 9 Ways to Tell the Difference. Questions? Multiple locations were found. Graphical Forecasts, CURRENT CONDITIONS The National Weather Service's (NWS) Storm Prediction Center (SPC) said Tuesday morning that the "intense derecho" traveled from southeast South Dakota all the way to Ohio, a … A derecho (pronounced duh-REY-cho) produces a swath of particularly damaging thunderstorm winds (specifically, wind gusts of at least 58 mph along most of its length with several well-separated 75 mph or greater gusts) over an area at least 250 miles long. Marshall County. The event has often been compared to an inland hurricane or hurricanes in general. #Drecho Storm Summary. Gustavus Hinrichs, 1888: Tornadoes and Derechos, American Meteorological Journal, pp. Hourly radar images of the derecho's progression across the region. Associated Press. Additional photos/videos on this Twitter Moment. Enhanced Data Display, WEATHER FORECASTS Powerful derecho leaves path of devastation across Midwest A rare wind storm with power similar to an inland hurricane swept across the Midwest, blowing over trees, flipping vehicles, causing widespread property damage and leaving tens of thousands of homes without power By RYAN J. FOLEY and SETH BORENSTEIN Associated Press A derecho is a widespread wind damage event caused by severe thunderstorms, and this one got its start in southeast South Dakota and eastern Nebraska during the morning. Energy-Helicity Index (EHI) at 1600 UT (11 a.m. CT). (MORE: Midwest Derecho Causes Widespread Damage). Education National Weather Service Courtesy of Chad Spore. The strongest winds were between the Highway 30 and Interstate 80 corridor (including, but not limited to the Des Moines metro, Ames, Newton, Marshalltown, Tama/Toledo, Carroll) from central Iowa eastward into east central Iowa and northern Illinois. Courtesy of Lisa Schmitz. Derecho with 100 mph winds moves across the Midwest, bringing down trees and power lines in Chicago By Theresa Waldrop and Judson Jones , CNN Meteorologist Updated 10:12 PM ET, Mon August 10, 2020 (Courtesy of Lisa Schmitz), Flattened corn near Bouton, Iowa. IOWA CITY, Iowa (AP) — A … Brief QLCS tornado on leading edge of convection. (Courtesy Amy Haskins), Broken tree branch in Manning, Iowa. Path was also overflown by UAS confirming convegent path of debris. read. (Source: Kelsey Kremer/The Des Moines Register via AP/The Des Moines Register) By Associated Press and RYAN J. 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