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 tornado's width is generally less than a mile with the widest tornado width around 2.5 miles. Powerful derecho leaves path of devastation across Midwest . Fire DSS IOWA CITY, Iowa (AP) — A … NOAA's Storm Prediction Center says the derecho tracked about 770 miles in 14 hours. August 11, 2020 at 7:25 am. The event has often been compared to an inland hurricane or hurricanes in general. Weather History 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. Overview images of the swath of damage and power outages from the derecho and the progression of the derecho on Monday, August 10, 2020. Image courtesy NWS Storm Prediction Center (, Power outages caused as the derecho moved through Iowa into Indiana on August 10, 2020. Des Moines city crews remove a tree fallen on Hickman Road, on Monday, Aug. 10, 2020, in Des Moines, Iowa after a storm with gusts more than 80 mph blew through the city. Posted: Aug 10, 2020 / 09:18 PM EDT / Updated: Aug 10, 2020 … Here are a few of the key distinctions between derechos and hurricanes. Energy-Helicity Index (EHI) at 1600 UT (11 a.m. CT). Toggle between August 2, 16, and 23, 2020 showing a drop in the USDA Good to Excellent Corn Condition in Iowa. Sorry, the location you searched for was not found. Tens of thousands of people in the metro area were without power. Video from Huxley, Iowa. Acres in Derecho Path. Courtesy of Lisa Schmitz. Courtesy of Kelli Fineran. The derecho swept across a … 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. Records and Facts, WEATHER SAFETY Questions? This drop in Iowa is a result of both the ongoing drought and the derecho. Des Moines, IA9607 NW Beaver DriveJohnston, IA 50131-1908515-270-2614Comments? #Drecho Storm Summary. Video from Kiron, Iowa. Iowa Geological Survey's (IGS) real-time seismometer near Des Moines, IA captured the derecho as it moved through the metro. The name in quotes is taken from the "Noteworthy Events" from the Storm Prediction Center's "About Derechos" webpage with the exception of the 1877 and 2020 derecho. CTRL + SPACE for auto-complete. Courtesy, USDA major/minor corn areas with NWS storm reports overlaid shows the derecho swept through major corn producing areas of Iowa, Illinois and Indiana on August 10, 2020. Wind speeds in a derecho can exceed 100 mph, which is equivalent to that of an EF-1 tornado, but over a vastly larger area than a tornado would impact. This map combines both NWS Des Moines and NWS Quad Cities service areas. Multiple locations were found. Gensini said this derecho will go down as one of the strongest in recent history and be one of the nation’s worst weather events of 2020. The main threat with derechos is the damaging straight-line winds (the name itself means "direct" or "straight-ahead" in Spanish). Image courtesy NWS Storm Prediction Center (original). Just over three dozen locations had wind gusts over 74 mph, mostly in Iowa and northern Illinois. 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 NOAA The 770 mile path of Monday, August, 10, derecho across the Midwest. KMZ available. Deep layer moisture convergence at 16 UTC (11 a.m CT). Powerful derecho leaves path of devastation across Midwest. For more details on impacts from these storms, see the link below. Social Media. In total, the derecho produced 20 confirmed tornadoes across Illinois, Wisconsin, and Indiana. We recognize our responsibility to use data and technology for good. GOES-East Sandwich (blend of visible and infrared) loop (Courtesy William Churchill, NWS), Radar loop from the Iowa Environmental Mesonet of the derecho's progression across Iowa from 8am to 2pm on August 10, 2020. Filed Under: Iowa, Wisconsin News. While this does help people relate to the type of wind damage seen in this event, this is where the comparisons between derechos and hurricanes end. The first option will be automatically selected. (Source: Kelsey Kremer/The Des Moines Register via AP/The Des Moines Register) By Associated Press and RYAN J. FOLEY and SETH BORENSTEIN | August 10, 2020 … Derechos develop in an environment with very warm and moist air at the surface, colder air aloft, and moderate to strong winds at upper levels of the atmosphere. Special sounding launched at 1700 UTC (Noon CT) ahead of the derecho in eastern Iowa. Ryan J. Foley And Seth Borenstein. The storm moved across … (Courtesy of Lindsay Cramer), Rockwell City, Iowa. Most unstable convective available potential energy (MUCAPE) showed extreme instability of 6000 J/kg and theta-e difference of 30C or greater. 700mb height (m), wind (knots), temp (C, red), and 700-500mb mean RH>=70. NASA Aqua satellite MODIS imagery toggle between July 28, 2020 and August 15, 2020 showing the approximate damage area to cropland (outlined) from the derecho that moved across Iowa on August 10, 2020. (Courtesy of AJ Seely, Dallas County Emergency Managment). Much of this severe wind was significant (75+ mph winds) resulting in many downed trees, several toppled-over semi-trucks, cornfields, and many communities receiving at least some minor … Courtesy Jeff Wood. A derecho also needs gusts of 75 mph or greater along multiple points of the path. (Courtesy Lisa Schmitz), Building damaged in Woodward, Iowa (Courtesy of AJ Seely, Dallas County Emergency Management), Tipped over livestock semi at a gas station on Highway 141 and 169. Winds over 70 … Imagery courtesy MODIS Today at University of Wisconsin-Madison Space Science and Engineering Center. As of November 2020, the financial toll of this storm is second-highest for a 2020 U.S. natural disaster, surpassed only by Hurricane Laura's preliminary damage figure of 14.1 billion. However, once a hurricane leaves the warm ocean waters, which is the ener. Fire Weather Local Forecast Info derecho 2020 path. Image courtesy NWS Chicago (, Derecho's path across the region on August 10, 2020 was over 750 miles! Tama County. Video from Huxley, Iowa. A mesoscale convective system on August 10th, 2020 producing derecho winds. Derechos have a forward motion that tends to be quite rapid and is usually 50 mph or higher. Iowa State University. Severe Weather DSS NOAA. NWS Quad Cities' Observed Sounding at 1200 UTC (7 a.m. CT) the morning of the derecho. A John Deere tractor sits under a collapsed building after a derecho on Monday, August 10, 2020, near Franklin Grove, Illinois. Recently searched locations will be displayed if there is no search query. Posted: Aug 10, 2020 / 03:57 PM CDT / Updated: Aug 11, 2020 / 05:42 AM CDT. A derecho west of the Rocky Mountains is an extremely rare event. Multiple locations in Iowa clocked wind gusts of 90 mph or greater, including a gust to 112 mph in Midway. From there, the destructive thunderstorms spread through Iowa, northern and central Illinois, southern Wisconsin, southwest Michigan, Indiana and northwest Ohio. (Courtesy of Kip Ladage), Hog confinement building demolished in Tama County. By Uncategorized 0 Comments. Des Moines city crews remove a tree fallen on Hickman Road, on Monday, Aug. 10, 2020, in Des Moines, Iowa after a storm with gusts more than 80 mph blew through the city. All NOAA. The IGS' Jason Vogelgesang says, "You can see the waveform responding to the immense wind, beginning at 10:26am & fading back to normal background conditions at 12:08pm". August 15, 2020 National Headlines Leave a comment. Tornadoes can also be embedded within derechos and produce concentrated areas of even more intense damage. (MORE: Midwest Derecho Causes Widespread Damage). Weather Radio 3-hour Surface Based CAPE change clearly shows the amount of energy the derecho used as it moved eastward across Iowa into Illinois. Iowa officials have estimated that at least 10 million acres of corn and soybean crops were damaged or destroyed by the violent windstorm. 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 … Hurricanes on the other hand, Derechos can occur over land and/or water and maintain their intensity. Imagery courtesy MODIS Today at University of Wisconsin-Madison Space Science and Engineering Center. Courtesy of Kip Ladage, Corn damaged near Adel. General DSS Which City Is the Worst for Fall Allergies This Year? The August 10, 2020 derecho has been both equally impressive and devastating in its effect across Iowa and surrounding states. Facebook; Twitter; LinkedIn ; Pinterest; OMAHA (DTN) — Mazon, Illinois, farmer Paul Jeschke already faces a harvest challenge this year when the Illinois River closes to transportation. Last updated 8/25/2020 4:15 a.m. CDT. As of October 2020, it is the most costly thunderstorm in US history. (Courtesy Amy Haskins), Broken tree branch in Manning, Iowa. (Courtesy of Brandon Baggett), Bondurant, Iowa. Additionally, wind gusts along its path must exceed 58 mph with at least several reports of gusts over 75 mph, according to the Storm Prediction Center (SPC). Videos that captured the intense winds and destruction from around central Iowa. River Summary, PAST WEATHER Source: https://t.co/8cAFt3zGJe pic.twitter.com/KUv6ZaZ7TD, Photos from around central Iowa show the damage and devastation from the August 10, 2020 derecho
Marshall County. (Courtesy of Kip Ladage), Elk Horn, Iowa. 759k in #Illinois
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