This drop in Iowa is a result of both the ongoing drought and the derecho. Marshall County. “It ramped up pretty quick” around 7 a.m. central time in Eastern Nebraska. (Courtesy of Kip Ladage), Elk Horn, Iowa. 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. Climate Plots Defoliated soybeans south of Jefferson, IA, Broken tree limbs, Merle Hay neighborhood, Des Moines, Broken tree hanging across road, Merle Hay neighborhood, Des Moines, Broken window, eastern Greene County, Iowa, Tree into house and through sliding glass door, eastern Greene County, Iowa, Toppled power lines, eastern Greene County, Iowa, Damaged grain bins, eastern Greene County, Iowa, Aerial view of the flattened corn in Tama County. Powerful derecho leaves path of devastation across Midwest Weather. Overview images of the swath of damage and power outages from the derecho and the progression of the derecho on Monday, August 10, 2020. Despite facing a dry July, many farmers in Iowa were expecting a good harvest in the fall. August 11, 2020 at 7:25 am. This is a collaborative effort between weather forecast offices Des Moines, IA Sioux Falls, SD Omaha, NE, Quad Cities, IA/IL, La Crosse, WI, Milwaukee, WI, Chicago, IL, central Illinois, IL, northern Indiana, IN, Indianapolis, IN, northern Indiana, IN, and Grand Rapids, MI. Which City Is the Worst for Fall Allergies This Year? In fact this could be the first in recorded history to form west of the Rockies and cross the Continental Divide. 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 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. The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories: SPC Event Review Webpage for August 10, 2020. Damage was done to crop and trees. Records and Facts, WEATHER SAFETY Path was also overflown by UAS confirming convegent path of debris. © Copyright TWC Product and Technology LLC 2014, 2020, Some of 2020's Most Magical Christmas Displays, Jaw-Dropping Satellite Images That Will Define 2020, Cold or Flu? (Courtesy of Lindsay Cramer), Rockwell City, Iowa. Video from Dysart, Iowa. NASA/NOAA Suomi Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band showing the nighttime lights in Iowa. Marshall County. NWS Derecho composite parameter attempts to identify areas that may become cold pool dominant for wind events. Posted: Aug 10, 2020 / 09:18 PM EDT / Updated: Aug 10, 2020 … Share. Powerful Derecho Leaves Path Of Devastation From Iowa To Michigan. Video from Ankeny, Iowa. Please select one of the following: Video from Huxley, Iowa. River Summary, PAST WEATHER Larger DCAPE values are typically associated with stronger downdrafts and possibly stronger wind gusts. Derechos have a forward motion that tends to be quite rapid and is usually 50 mph or higher. All NOAA. In total, the derecho produced 20 confirmed tornadoes across Illinois, Wisconsin, and Indiana. (Courtesy of Brandon Baggett), Bondurant, Iowa. Courtesy of Jeff Wood. Multiple locations were found. Capital Weather Gang Destructive derecho brings 100 mph winds to Iowa, blasts through Chicago along 700-mile path The storms struck the Midwest with … Multiple locations in Iowa clocked wind gusts of 90 mph or greater, including a gust to 112 mph in Midway. (Courtesy of Randy VanEvery), Huxley, Iowa. Preliminary map above shows the estimated wind speeds of the August 10, 2020 derecho across the region as of August 21, 2020. Tue., Aug. 11, 2020 timer 4 min. The Weather Company’s primary journalistic mission is to report on breaking weather news, the environment and the importance of science to our lives. US Dept of Commerce Enhanced Data Display, WEATHER FORECASTS A derecho on the other hand produces damage over a much larger width of many miles. Text Summary of Storm Reports - Issued August 10, 2020 at 316pm CDT, Tornado #1 - SW of La Moille Multi-Radar Multi-Sensor animation of the derecho's path through Iowa from 4am to 4pm on August 10, 2020. NWS Quad Cities' Observed Sounding at 1200 UTC (7 a.m. CT) the morning of the derecho. Published: Aug. 10, 2020 at 5:46 PM … (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 … 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. Just over three dozen locations had wind gusts over 74 mph, mostly in Iowa and northern Illinois. As of October 2020, it is the most costly thunderstorm in US history. 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 … Tornado #2 - NE of Minerva Storm Spotting, OFFICE ACTIVITIES Ryan J. Foley And Seth Borenstein. The following images shows the progression from peak power outages on the morning of August 11 to the gradually and ongoing restoration on the mornings of the 12th, 14th, and 16th. Iowa State University. #Drecho Storm Summary. Each line represents 30 minutes of time from left to right and goes from 7am at the top of the image to 7pm at the bottom of the image. General DSS Iowa officials have estimated that at least 10 million acres of corn and soybean crops were damaged or destroyed by the violent windstorm. Weather Summary (Courtesy of Chrystal Brillhart), Damaged grain bin in Dallas County. Click on the link(s) below the image for additional details from the Storm Prediction Center's summary, an event webpage, and/or a journal article. Courtesy of Lisa Schmitz. (Courtesy of Amy Haskins), Flattened corn at sunset near Adel, Iowa. Weather History by: RYAN J. FOLEY and SETH BORENSTEIN, Associated Press . Winter DSS NOAA The 770 mile path of Monday, August, 10, derecho across the Midwest. Thanks to Scott Lincoln, WFO Chicago for working with numerous offices to gather and refine this regional map. (Courtesy of AJ Seely, Dallas County Emergency Managment). 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. North Dakota-Minnesota Derecho of 2020: July 17, 2020: August 2020 Midwest derecho: August 10–11, 2020 : A severe weather event which took place from August 10–11, 2020 across the Midwestern United States and portions of southwestern Ontario. We recognize our responsibility to use data and technology for good. Theta-e differences greater than 30C are shown and even 35C later in the event indicate potential strength of the cold pool. Deadly derecho leaves path of destruction across Midwest, 800,000 without power A derecho – a dangerous, ferocious wall of wind that's like an … On Monday evening, a violent, fast-moving thunderstorm complex known as derecho tore a 700-mile path from Nebraska to Indiana. Data are from USDA-NASS Maps and are shared by Brad Rippey from USDA-Office of the Chief Economist World Agricultural Outlook Board. Use escape to clear. Tornadoes can also be embedded within derechos and produce concentrated areas of even more intense damage. Powerful derecho leaves path of devastation across Midwest . Data are from USDA-NASS Maps and are shared by Brad Rippey from USDA-Office of the Chief Economist World Agricultural Outlook Board. Social Media. The highest official wind gusts measured was 99 mph at the Marshalltown Airport with an unofficial wind gust of 106 mph at Le Grand (east of Marshalltown). Full feature can be viewed. Tornado associated with QLCS derecho first observed via high resolution satellite imagery. Sorry, the location you searched for was not found. 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. Gustavus Hinrichs, 1888: Tornadoes and Derechos, American Meteorological Journal, pp. Hurricanes on the other hand, Derechos can occur over land and/or water and maintain their intensity. 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 … 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 … Brief tornado captured from post event UAS survey. A tornado's width is generally less than a mile with the widest tornado width around 2.5 miles. The storm moved across … Local Forecast Info Powerful Derecho Leaves Path of Devastation Across Midwest. Total customers Affected: Over 1.9 Million Filed Under: Iowa, Wisconsin News. Iowa Geological Survey's (IGS) real-time seismometer near Des Moines, IA captured the derecho as it moved through the metro. A weather station on the northside of Chicago near Lincoln Square had a gust to 85 mph. Office Tours 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. Videos that captured the intense winds and destruction from around central Iowa. Special sounding launched at 1700 UTC (Noon CT) ahead of the derecho in eastern Iowa. Courtesy of Chad Spore. Type at least three characters to start auto complete. 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 (Courtesy of Allison Sheridan), Marshalltown, Iowa. Winds over 70 … IOWA CITY, Iowa - … by Ryan J. Foley And Seth Borenstein, The Associated Press. Iowa Environmental Mesonet - Derecho Peak Wind Gusts (variety of automated weather stations) and a listing of local storm reports from across Iowa. (Courtesy NWS Des Moines), Tree snapped at base in Manning, Iowa. RB. 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. 759k in #Illinois The first option will be automatically selected. Published: August 10, 2020, 12:33 pm Updated: August 11, 2020… (Courtesy of Dallas County Emergency Manager AJ Seely), Big tree on a house in Tama County (Courtesy of Darrell Ross), West side of Ames, Iowa. According to the NOAA's Storm Prediction Center, by strict definition, the swath of … A derecho is a widespread, intense and long-lived wind storm. A derecho west of the Rocky Mountains is an extremely rare event. Courtesy of Nick Glenn. (Courtesy of Hamilton County Emergency Management), Farm House Museum. (Courtesy of Amy Haskins), Tree snapped in Manning. Powerful derecho leaves path of devastation across Midwest. Tornado initially found from high resolution satellite imagery and confirmed via UAS overflight. No damage indicators were impacted, hence the EFU designation. Derechos develop in environments with warm, humid air near the surface and cold air and strong winds in the upper atmosphere. 9 Ways to Tell the Difference. A listing of past derechos that have impacted at least some portion of Iowa since mainly 1980. 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. 283k in #Indiana Here are a few of the key distinctions between derechos and hurricanes. Courtesy. The main threat with derechos is the damaging straight-line winds (the name itself means "direct" or "straight-ahead" in Spanish). Additional photos/videos on this Twitter Moment. (Courtesy of Kip Ladage), Flattened corn in Tama County. Courtesy of Jared Flater. 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. Toggle between August 2, 16, and 23, 2020 showing a drop in the USDA Good to Excellent Corn Condition in Iowa. August 15, 2020 National Headlines Leave a comment. 700mb height (m), wind (knots), temp (C, red), and 700-500mb mean RH>=70. “I don’t think anybody expected widespread winds … 345k in other states Toggle between August 2, 16, and 23, 2020 showing a drop in the USDA Good to Excellent Soybean Condition in Iowa. Video from Huxley, Iowa. Brief QLCS tornado on leading edge of convection. (Courtesy Amy Haskins), Broken tree branch in Manning, Iowa. Hourly radar images of the derecho's progression across the region. What happened Monday morning was the result of unstable, super moist air that had parked for days over the northern plains and finally ramped up into a derecho. Posted: Aug 10, 2020 / 03:57 PM CDT / Updated: Aug 11, 2020 / 05:42 AM CDT. Fire DSS Fire Weather Graphical Forecasts, CURRENT CONDITIONS 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. Powerful derecho leaves path of devastation across Midwest . NOAA. WARNINGS/HAZARDS Courtesy of Kelli Fineran. How Winter Fashion Has Changed in 100 Years (PHOTOS), Eerie Vintage Photos of People Battling the Flu. Road Conditions Please try another search. 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). Significant Events Iowa Derecho Storm Maps & Damage Huge storms produced widespread hurricane-like severe wind damage across Iowa, northern Illinois, and northern Indiana during the day on Monday, August 10. As of this time, this count ties August 10, 2020 with June 22, 2016 as the single calendar day with the 2nd most tornadoes within our county warning area (behind the 6/30/2014 "Double Derecho" event). For more details on impacts from these storms, see the link below. Image courtesy NWS Chicago (, Derecho's path across the region on August 10, 2020 was over 750 miles! Image courtesy of the. Des Moines, IA9607 NW Beaver DriveJohnston, IA 50131-1908515-270-2614Comments? 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. Stayed in cropland with no impacts to damage indicators, hence the EFU rating. National Oceanic and Atmospheric Administration A derecho also needs gusts of 75 mph or greater along multiple points of the path. This drop in Iowa is a result of both the ongoing drought and the derecho. A mesoscale convective system on August 10th, 2020 producing derecho winds. Not all nights were cloudless so 'blurring' of lights may occur in some areas. Iowa Environmental Mesonet (IEM) feature showing August 11, 2020 Aqua MODIS satellite image showing crop damage (smiliar to above) with wind reports overlaid. Education 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. 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. Powerful derecho leaves path of devastation across Midwest. Hydrology DSS Courtesy of Kip Ladage, Corn damaged near Adel. Image courtesy NWS Storm Prediction Center (original). 850mb height (m, black), temp (C, red), dewpoint (C, green), and wind (knots). Associated Press. Questions? Deep layer moisture convergence at 16 UTC (11 a.m CT). By Uncategorized 0 Comments. Video from Kiron, Iowa. Wind gusts over 70 mph were reported in Chicago during the late afternoon. Tens of thousands of people in the metro area were without power. Millions of Ill. NOAA's Storm Prediction Center says the derecho tracked about 770 miles in 14 hours. Courtesy of the, One minute wind observations at the Des Moines International Airport (KDSM) on August 10, 2020 in the late morning showing a wind gust of 75 mph with wind gusts over 50 mph for over 20 minutes. read. Tornado #3 - Northwest of Marshalltown CTRL + SPACE for auto-complete. A John Deere tractor sits under a collapsed building after a derecho on Monday, August 10, 2020, near Franklin Grove, Illinois. Video from Boone, Iowa. Energy-Helicity Index (EHI) at 1600 UT (11 a.m. CT). Take control of your data. Please Contact Us. Path found via high resolution satellite imagery. Severe Weather DSS This story does not necessarily represent the position of our parent company, IBM. Downdraft convective available potential energy (DCAPE) can provide an estimate of potential downdrafts of rain cooled air to the surface. Courtesy of Jake Randolph. 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. Experimental Graphical Hazardous Weather Outlook, USDA Weekly Weather and Crop Bulletin - August 18, 2020, Derecho Flattens Iowa Corn - NASA Earth Observatory, 10 August 2020 Derecho - Satellite Liaison Blog - Bill Line, NESDIS/STAR, Interactive Map - Storm Prediction Center, Iowa Environmental Mesonet Local Storm Reports Map, Iowa Environmental Mesonet - Derecho Peak Wind Gusts, July 4-5, 1980 Derecho - "The 'More Trees Down' Derecho, July 19, 1983 Derecho - "The I-94 Derecho", July 28-29, 1986 Derecho - "The Supercell Transition Derecho", July 7-8, 1991 Derecho - "The Southern Great Lakes Derecho of 1991", May 30-31, 1998 Derecho - "The Southern Great Lakes Derecho of 1998", June 29, 1998 Central Iowa Tornado/Derecho Event - WFO Des Moines Summary, July 11, 2011 - "The Cross Country Derecho of July 2011", July 11, 2011 East Central Iowa Derecho - WFO Des Moines Event Summary Webpage, June 30, 2014 - "The One-Two Punch Derechos", June 30, 2014 Severe Weather Outbreak - WFO Des Moines Event Summary Webpage, August 10, 2020 Derecho - WFO Des Moines Event Summary Webpage, National Oceanic and Atmospheric Administration, Preliminary map of the estimated winds across central to eastern Iowa. Imagery courtesy MODIS Today at University of Wisconsin-Madison Space Science and Engineering Center. Most unstable convective available potential energy (MUCAPE) showed extreme instability of 6000 J/kg and theta-e difference of 30C or greater.

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