Several rounds of severe thunderstorms impacted the area on Sunday May 7, 2023.  Two areas of storms were present during the mid to late afternoon, one entering the Cedar Rapids and Iowa City metros and another around the Burlington and Fort Madison metros. The first was the most severe, producing hail up to baseball size in Koszta, Iowa and widespread wind damage, especially around West Liberty, Iowa. This storm, and storms to the west, eventually merged into a cluster of severe thunderstorms, producing large hail and destructive winds around 70-75 mph all the way to Mount Pleasant, Iowa and Macomb, Illinois. The latter produced sporadic reports of quarter to half dollar sized hail, along with a brief landspout tornado east of Yorktown, IL.  There was also severe blowing dust which was especially bad near I-55 in north central Illinois. Even more thunderstorms developed overnight across the area, and mainly produced torrential rain and isolated large hail reports.

Thunderstorm Wind in HANCOCK, ILLINOIS
From 07-MAY-23 18:56:00 to 07-MAY-23 19:15:00 (CST-6)
Location: DALLAS CITY
Magnitude: 52.00 EG
Reported by: Amateur Radio

Report of a tree down near Dallas City. Times estimated by radar.

Thunderstorm Wind in HANCOCK, ILLINOIS
From 07-MAY-23 19:12:00 to 07-MAY-23 19:30:00 (CST-6)
Location: ST MARY
Magnitude: 52.00 EG
Reported by: Trained Spotter

Trained spotter estimated 60 mph winds from the thunderstorm.

Thunderstorm Wind in MCDONOUGH, ILLINOIS
From 07-MAY-23 19:02:00 to 07-MAY-23 19:15:00 (CST-6)
Location: SCIOTA
Magnitude: 52.00 EG
Reported by: Broadcast Media

Report of powerlines down on a car with the driver trapped near the West Prairie High School. Time estimated by radar.

Thunderstorm Wind in MCDONOUGH, ILLINOIS
From 07-MAY-23 19:15:00 to 07-MAY-23 19:25:00 (CST-6)
Location: MACOMB MUNI ARPT
Magnitude: 55.00 MG
Reported by: ASOS

The ASOS at Macomb Municipal Airport reported a 63 mph wind gust from the thunderstorm.

Thunderstorm Wind in MCDONOUGH, ILLINOIS
From 07-MAY-23 19:20:00 to 07-MAY-23 19:30:00 (CST-6)
Location: MACOMB
Magnitude: 56.00 EG
Reported by: Trained Spotter

Several large tree limbs down, with a shed thrown about 30 feet. This was due to winds with the gust front. Time estimated by radar.

Thunderstorm Wind in MCDONOUGH, ILLINOIS
From 07-MAY-23 19:15:00 to 07-MAY-23 19:25:00 (CST-6)
Location: MACOMB
Magnitude: 56.00 EG
Reported by: Trained Spotter

Two large tree branches downed by the winds. Time was estimated by radar.

Thunderstorm Wind in PUTNAM, ILLINOIS
From 07-MAY-23 18:59:00 to 07-MAY-23 19:10:00 (CST-6)
Location: FLORID
Magnitude: 56.00 EG
Reported by: Public

Estimated winds around 65 mph, with trees down throughout the county. Time was estimated by radar.

Thunderstorm Wind in MCDONOUGH, ILLINOIS
From 07-MAY-23 19:18:00 to 07-MAY-23 19:28:00 (CST-6)
Location: MACOMB
Magnitude: 56.00 EG
Reported by: Trained Spotter

Roof damage to a warehouse on University Drive and Bower Road. Delayed report and time was estimated from radar.

Tornado in BUREAU, ILLINOIS
From 07-MAY-23 17:40:00 to 07-MAY-23 17:41:00 (CST-6)
Location: YORKTOWN
Tornado F-scale: EFU
Reported by: Broadcast Media

Broadcast media reported a brief Landspout (non-supercell) tornado about 3 miles east of Yorktown, IL or about 6 miles NW of New Bedford, IL. There was no observable damage to assign an EF-scale rating.

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 15:06:00 to 07-MAY-23 15:18:00 (CST-6)
Location: INDUSTRY
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in ROCK ISLAND, ILLINOIS
From 07-MAY-23 17:11:00 to 07-MAY-23 17:25:00 (CST-6)
Location: OSBORN
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 17:30:00 to 07-MAY-23 17:40:00 (CST-6)
Location: GOOD HOPE
Magnitude: 2.00 
Reported by: Public

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 17:34:00 to 07-MAY-23 17:45:00 (CST-6)
Location: GOOD HOPE
Magnitude: 2.50 
Reported by: Public

Report gathered from Mping.

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 17:48:00 to 07-MAY-23 17:55:00 (CST-6)
Location: BUSHNELL
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 17:49:00 to 07-MAY-23 17:55:00 (CST-6)
Location: PRAIRIE CITY ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 17:55:00 to 07-MAY-23 18:05:00 (CST-6)
Location: MACOMB
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 17:58:00 to 07-MAY-23 18:15:00 (CST-6)
Location: MACOMB
Magnitude: 1.00 
Reported by: Public

Report from Mping.

Hail in HENRY, ILLINOIS
From 07-MAY-23 18:00:00 to 07-MAY-23 18:15:00 (CST-6)
Location: ATKINSON
Magnitude: 1.00 
Reported by: Trained Spotter

Delayed report. Time estimated by radar.

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 18:01:00 to 07-MAY-23 18:15:00 (CST-6)
Location: MACOMB
Magnitude: 1.00 
Reported by: Public

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 18:04:00 to 07-MAY-23 18:15:00 (CST-6)
Location: MACOMB
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in MCDONOUGH, ILLINOIS
From 07-MAY-23 18:05:00 to 07-MAY-23 18:15:00 (CST-6)
Location: MACOMB
Magnitude: 1.00 
Reported by: Broadcast Media

Thunderstorm Wind in MERCER, ILLINOIS
From 07-MAY-23 17:40:00 to 07-MAY-23 17:55:00 (CST-6)
Location: MARSTON
Magnitude: 56.00 EG
Reported by: State Official

Powerlines were downed by strong thunderstorm wind gusts.

Thunderstorm Wind in MERCER, ILLINOIS
From 07-MAY-23 18:15:00 to 07-MAY-23 18:30:00 (CST-6)
Location: OLD GILCHRIST
Magnitude: 61.00 EG
Reported by: State Official

Reports of trees and powerlines down throughout the county.

Thunderstorm Wind in WARREN, ILLINOIS
From 07-MAY-23 18:54:00 to 07-MAY-23 19:10:00 (CST-6)
Location: BERWICK
Magnitude: 70.00 EG
Reported by: Fire Department/Rescue

One outbuilding destroyed and another heavily damaged with a couple large trees uprooted. Maximum wind speeds estimated 80-90 mph.