A line of intense, fast-moving storms known as a derecho moved through a portion of the Midwest on Monday, resulting in downed trees, widespread utility outages and structural damage across several states.
In addition to producing wind gusts in excess of 100 mph, the system also spawned multiple tornadoes, with eight reportedly touching down across the greater Chicago area.
According to officials, power was knocked out to more than one million homes and businesses, with at least 475,000 located in Illinois and 400,000 in Iowa alone.
Approximate locations sustaining structural damage:
Illinois
- Forreston (Ogle County, 61030)
- Lombard (DuPage County, 60148, 60149)
- Marengo (McHenry County, 60152)
- New Lenox (Will County, 60451)
- Rockford (Winnebago County, 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61115, 61125, 61126)
- Rogers Park/Chicago (Cook County, 60626, 60660)
- Spring Grove (McHenry County, 60081)
- Wheaton (DuPage County, 60187, 60189)
- Yorkville (Kendall County, 60560)
Indiana
- Lake Station (Lake County, 46405)
Iowa
- Ames (Story County, 50010, 50011, 50012, 50013, 50014)
- Cedar Rapids (Linn County, 52401, 52402, 52403, 52404, 52405, 52406, 52407, 52408, 52409, 52410, 52411, 52497, 52498, 52499)
- Davenport (Scott County, 52801, 52802, 52803, 52804, 52805, 52806, 52807, 52808, 52809)
- Luther (Boone County, 50152)
- Marshalltown (Marshall County, 50158)
- Newton (Jasper County, 50208)
- Perry (Dallas County, 50220)
- Slater (Story County, 50244)
- Urbandale (Dallas/Polk Counties, 50131, 50322, 50323, 50391, 50395, 50398)
Wisconsin
- Lancaster (Grant County, 53813)
Media Coverage
The Weather Channel: Midwest Derecho Leaves Destruction in Iowa, Illinois, Indiana; More Than 1 Million Lost Power
Declaration Activity
Governor
8/11/20:
Iowa
Governor Kim Reynolds (Governor Reynolds issues disaster proclamation for 14 additional counties)
Associated County ZIP Code List (18 counties)