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Derecho with 100 mph winds moves across the Midwest, bringing down trees and power lines in Chicago

A very strong line of thunderstorms, called a derecho, will plow through the Midwest this afternoon. Winds of 100 mph could be seen from Chicago to Indianapolis.

Posted: Aug 10, 2020 2:40 PM
Updated: Aug 10, 2020 10:00 PM


A line of severe storms slammed through downtown Chicago and surrounding areas Monday, downing trees and power lines, which sparked fires in the city, officials said.

The storms produced winds of more than 100 mph in some cases as they moved through Iowa and Illinois.

'Numerous fires from power lines that have come down and remain energized,' the Chicago Fire Department tweeted Monday afternoon.

'Much of northern Illinois has pockets of damage with downed trees, debris, and powerlines blocking roadways,' the National Weather Service in Chicago tweeted.

It's unclear whether there were any injuries.

More than a million homes and businesses in the Midwest are without power, including a third of all of customers in Iowa.

The wind was so strong when the storm passed through Perry, Iowa, it blew pieces of boards from other buildings into the walls of a house. The boards narrowly missed people standing inside, Jennifer Pickering, who was at her brother's house when it happened, told CNN.

'It was crazy,' Pickering said. There was 'so much pressure in the room with the window broken, we couldn't get the door open at times to try and get the dog out. I honestly thought at times we were gonna die.'

The severe weather cleared out of Chicago by Monday evening and was stretching from Michigan and Indiana to southern Illinois and eastern Missouri, near St. Louis, CNN meteorologist Taylor Ward said, adding, 'The threat will continue to push east, and the storms will slowly ease as we head later into the evening and overnight period.'

There were more than 300 severe wind reports -- of gusts more than 58 mph -- by Monday evening, starting in eastern Nebraska on Monday morning and going to Indiana by the evening, according to the Storm Prediction Center, Ward said.

The storms are part of what the National Weather Service's Storm Prediction Center called a 'particularly dangerous situation.'

Tornado warnings were in effect west and north of Chicago Monday afternoon.

The storms are part of a derecho that was moving out of Iowa into northern Illinois, toward Chicago, and that prompted the Storm Prediction Center to issue a PDS thunderstorm watch through 7 p.m. CT Monday.

'PDS severe thunderstorm watches are rare, and reserved for only the strongest thunderstorm events,' CNN meteorologist Brandon Miller said.

Check your local forecast here

A wind gust of 106 mph in Marshall, Iowa, was reported as the storm passed through.

'A derecho producing widespread damaging winds, some of which should be intense, is expected to persist and expand east from Iowa into parts of the Midwest through this evening,' the Storm Prediction Center said Monday.

A derecho (pronounced similar to 'deh-REY-cho') is a widespread, long-lived wind storm associated with a band of rapidly moving showers or thunderstorms.

A derecho can produce destruction similar to that of a tornado, but the damage typically occurs in one direction along a relatively straight swath. The term 'straight-line wind damage' sometimes is used to describe derecho damage, says the SPC.

This storm complex is within the same area that is also under a moderate risk (level 4 of 5) for severe storms. The SPC upgraded this risk level Monday afternoon because of the formation of the derecho. The risk area included over 13 million people.

Minnesota Coronavirus Cases

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Confirmed Cases: 93012

Reported Deaths: 2040
CountyConfirmedDeaths
Hennepin26447926
Ramsey10697319
Dakota7354125
Anoka5935132
Stearns390924
Washington368955
Scott250033
Olmsted236728
Nobles195416
Blue Earth16476
Wright15737
St. Louis148039
Carver13897
Clay134040
Rice13228
Mower13125
Sherburne112514
Kandiyohi9722
Winona86318
Lyon6674
Waseca6128
Steele5332
Freeborn5323
Benton5303
Nicollet52116
Watonwan5164
Todd4872
Crow Wing48118
McLeod4752
Chisago4711
Le Sueur4524
Otter Tail4224
Beltrami4055
Martin37210
Goodhue3519
Pine3090
Itasca30314
Polk2984
Douglas2862
Isanti2790
Becker2642
Carlton2561
Cottonwood2240
Morrison2221
Dodge2180
Pipestone21710
Chippewa2061
Meeker1942
Sibley1863
Wabasha1830
Brown1822
Yellow Medicine1752
Rock1640
Cass1593
Murray1582
Mille Lacs1543
Redwood1541
Unassigned15052
Renville1427
Jackson1411
Faribault1360
Swift1271
Houston1210
Koochiching1213
Kanabec1178
Roseau1170
Pennington1161
Fillmore1110
Lincoln1080
Hubbard941
Stevens941
Pope920
Big Stone760
Aitkin751
Wadena670
Wilkin613
Grant594
Lake580
Norman530
Lac qui Parle501
Marshall501
Mahnomen461
Red Lake421
Traverse290
Clearwater270
Lake of the Woods211
Kittson120
Cook60

Iowa Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 83644

Reported Deaths: 1294
CountyConfirmedDeaths
Polk15697261
Woodbury526363
Johnson508627
Black Hawk443688
Linn3941110
Story340517
Dubuque310141
Scott292628
Dallas275138
Pottawattamie206838
Buena Vista197212
Marshall177034
Sioux15043
Wapello131457
Webster121614
Plymouth110420
Clinton109920
Muscatine109154
Crawford10655
Cerro Gordo101821
Warren9486
Jasper81732
Des Moines7647
Marion7536
Tama70431
Henry6854
Carroll6535
Lee6207
Wright5721
Dickinson5086
Boone5008
Bremer4837
Washington45311
Louisa42815
Mahaska39119
Delaware3833
Franklin34618
Floyd3363
Jackson3303
Winneshiek3246
Hamilton3223
Clay3164
Lyon3074
Benton3061
Hardin2951
Winnebago28913
Poweshiek2788
Butler2672
Buchanan2651
Clarke2643
Jones2643
Emmet26010
Shelby2581
Allamakee2566
Kossuth2540
Chickasaw2470
Clayton2443
Sac2440
Guthrie2416
Cedar2381
Cherokee2352
Grundy2193
Madison2122
Fayette2112
Harrison2073
Iowa1981
Mitchell1880
Howard1866
Humboldt1843
Palo Alto1830
Calhoun1793
Hancock1772
Mills1771
Cass1602
Monroe15710
Pocahontas1562
Lucas1536
Page1530
Osceola1510
Monona1451
Jefferson1371
Appanoose1333
Union1283
Taylor1271
Davis1244
Ida1151
Van Buren1131
Fremont1100
Keokuk1051
Worth1040
Greene990
Montgomery905
Wayne852
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