August 28, 2022: Thunderstorms Produce Scattered Wind Damage in Northern Illinois

Fast Facts:

Shortly after 2 PM on Sunday, August 28th, strong to severe thunderstorms rolled across portions of northern Illinois.
These storms were aided by a "Mesoscale Convective Vortex", which is a term referring to an area of low pressure aloft that is reinforced or augmented by earlier convection.
These thunderstorms produced scattered wind damage, with somewhat more concentrated swaths of damage and heavy rainfall occurring across central DeKalb County.
Storms exited the region through the mid evening hours, though another round of severe storms was experienced across part of the region the next day, Monday, August 29th.

Summary of severe weather and heavy rain reports

Storm Reports
Additional Info

Storm Reports

National Storm Reports for August 28th, 2022

Interactive Storm Report Map

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
816 PM CDT TUE AUG 30 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0222 PM     TSTM WND DMG     1 N POLO                42.00N 89.58W
08/28/2022                   OGLE               IL   PUBLIC           

            REPORT OF A 5 INCH THICK 15 FOOT LONG TREE 
            LIMB DOWN. NUMEROUS OTHER LIMBS DOWN. TIME 
            ESTIMATE. 

0240 PM     TSTM WND DMG     DIXON                   41.84N 89.48W
08/28/2022                   LEE                IL   PUBLIC           

            PHOTO OF A LARGE LIVE TREE SNAPPED NEAR THE 
            BASE. 

0251 PM     TSTM WND DMG     1 S OREGON              42.01N 89.33W
08/28/2022                   OGLE               IL   PUBLIC           

            FACEBOOK PHOTO OF DOWNED POWER POLE AND 
            LARGE TREE LIMBS. TIME ESTIMATED BASED ON 
            RADAR. 

0311 PM     TSTM WND GST     ROCKFORD AIRPORT        42.20N 89.10W
08/28/2022  M48 MPH          WINNEBAGO          IL   OFFICIAL NWS OBS 

            ROCKFORD AIRPORT PEAK WIND. 

0312 PM     TSTM WND DMG     4 ENE WINNEBAGO         42.28N 89.17W
08/28/2022                   WINNEBAGO          IL   PUBLIC           

            PHOTO SHARED ON SOCIAL MEDIA OF A 2 TO 3 
            FOOT DIAMETER TREE SNAPPED AT THE 
            INTERSECTION OF MERIDIAN ROAD AND WEST STATE 
            STREET. TIME ESTIMATED BASED ON RADAR. 

0315 PM     TSTM WND DMG     1 N ROCKFORD AIRPORT    42.21N 89.10W
08/28/2022                   WINNEBAGO          IL   PUBLIC           

            SOCIAL MEDIA PHOTO OF TREES DOWN IN A 
            BACKYARD. TIME AND LOCATION ESTIMATES. 

0319 PM     TSTM WND DMG     1 WNW DAVIS JUNCTION    42.11N 89.12W
08/28/2022                   OGLE               IL   BROADCAST MEDIA  

            PHOTOS SHARED OF LARGE LIVE TREE MOSTLY 
            UPROOTED AND A FEW LARGE LIMBS DOWN. TIME 
            ESTIMATE. 

0323 PM     TSTM WND DMG     ROCHELLE                41.93N 89.07W
08/28/2022                   OGLE               IL   TRAINED SPOTTER  

            ADDITIONAL LARGE TREE LIMBS DOWN ON 9TH 
            AVENUE AND 9TH STREET. ESTIMATED 8 TO 12 
            INCHES IN DIAMETER. TIME ESTIMATE. 

0324 PM     TSTM WND DMG     ROCHELLE                41.93N 89.07W
08/28/2022                   OGLE               IL   TRAINED SPOTTER  

            MULTIPLE LARGE TREE LIMBS DOWN NEAR 10TH 
            AVENUE AND LINCOLN HIGHWAY. TIME ESTIMATE. 

0350 PM     TSTM WND DMG     4 WNW HERBERT           42.19N 88.84W
08/28/2022                   BOONE              IL   PUBLIC           

            TREE LIMBS DOWN. RELAYED VIA SPOTTER 
            NETWORK. 

0400 PM     TSTM WND DMG     SHABBONA                41.77N 88.88W
08/28/2022                   DE KALB            IL   PUBLIC           

            PHOTO SHARED ON SOCIAL MEDIA OF A ROUGHLY 2 
            FOOT DIAMETER TREE BLOWN OVER. 

0405 PM     TSTM WND DMG     4 NNW WATERMAN          41.82N 88.81W
08/28/2022                   DE KALB            IL   PUBLIC           

            PHOTO SHOWS METAL OUTBUILDING/FARM BUILDING 
            DESTROYED. TIME ESTIMATED. 

0412 PM     HAIL             4 N WATERMAN            41.83N 88.77W
08/28/2022  M1.50 INCH       DE KALB            IL   PUBLIC           

            RELAYED VIA SPOTTER NETWORK. 

0418 PM     TSTM WND DMG     CORTLAND                41.92N 88.69W
08/28/2022                   DE KALB            IL   PUBLIC           

            CORRECTS TIME OF PREVIOUS TSTM WND DMG 
            REPORT FROM CORTLAND. SOCIAL MEDIA PHOTO OF 
            LARGE TREE LIMBS AROUND 6 INCHES IN DIAMETER 
            SNAPPED. TIME AND LOCATION ESTIMATED. 

0420 PM     TSTM WND DMG     CORTLAND                41.91N 88.69W
08/28/2022                   DE KALB            IL   TRAINED SPOTTER  

            MULTIPLE SIGN POLES BENT OVER DUE TO WIND. 
            NEAR SOMONAUK ROAD AND ROUTE 38. 

0420 PM     TSTM WND DMG     DEKALB                  41.93N 88.75W
08/28/2022                   DE KALB            IL   TRAINED SPOTTER  

            REPORTS OF TWO TENTS BLOWN OVER AT THE 
            DEKALB CORNFEST. TIME ESTIMATE. 

0420 PM     TSTM WND DMG     1 NW DEKALB             41.94N 88.77W
08/28/2022                   DE KALB            IL   PUBLIC           

            TWITTER REPORT OF LARGE LIMB DOWN ON THE NIU 
            CAMPUS. TIME ESTIMATE. 

0425 PM     TSTM WND DMG     2 N MAPLE PARK          41.94N 88.60W
08/28/2022                   DE KALB            IL   TRAINED SPOTTER  

            REPORT OF A ROOF BLOWN OFF A LARGE GRAIN 
            SILO. SILO IS APPROXIMATELY 60 FEET TALL AND 
            20 FEET WIDE. TIME ESTIMATED BASED ON RADAR. 

0451 PM     TSTM WND DMG     LAKE IN THE HILLS       42.18N 88.34W
08/28/2022                   MCHENRY            IL   PUBLIC           

            SOCIAL MEDIA PHOTO OF A FEW LARGE (ROUGHLY 6 
            TO 12 INCH DIAMETER) LIMBS DOWN. FELL ON AND 
            DESTROYED A PORTION OF A METAL FENCE. TIME 
            AND LOCATION ESTIMATES. 

0505 PM     FLOOD            DEKALB                  41.93N 88.75W
08/28/2022                   DE KALB            IL   PUBLIC           

            TWITTER VIDEO OF WATER OVER THE ROADWAY IN 
            DOWNTOWN DEKALB. 

0530 PM     HEAVY RAIN       3 NE DEKALB             41.96N 88.72W
08/28/2022  M3.30 INCH       DE KALB            IL   TRAINED SPOTTER  

             

0646 PM     TSTM WND DMG     2 SSW DES PLAINES       42.01N 87.90W
08/28/2022                   COOK               IL   DEPT OF HIGHWAYS 

            [DELAYED REPORT] NUMEROUS TREE LIMBS WERE 
            DOWNED ON THE SOUTH SIDE OF DES PLAINES, 
            PARTICULARLY NEAR HOWARD AVENUE UP TO E 
            ALGONQUIN ROAD. TIME ESTIMATED BASED ON 
            RADAR. 

0650 PM     TSTM WND DMG     1 S NILES               42.01N 87.81W
08/28/2022                   COOK               IL   PUBLIC           

            SOCIAL MEDIA PHOTOS OF AT LEAST THREE LARGER 
            DIAMETER TREES DOWNED IN THE 7300 BLOCK OF W 
            GREENLEAF AVENUE BLOCKING THE ROAD. TIME 
            ESTIMATED BASED ON RADAR. 

0657 PM     TSTM WND GST     GOLF                    42.06N 87.79W
08/28/2022  E60 MPH          COOK               IL   PUBLIC           

            VIDEO SHARED VIA TWITTER OF ESTIMATED 60 MPH 
            WIND GUST IN GOLF, IL. LOCATION ESTIMATED. 


&&

$$

Additional Info

Environment

Tree damage near Rockford. (Carla Winter)

Storm damage in Oregon (Angela Wicklund)

Uprooted tree in Davis Junction (Kris Habermehl)


Initial Severe Thunderstorm Watch issued at 1:15 PM. This watch was later expanded to include Cook, DuPage, Grundy, Will, and Kendall Counties.	Radar loop showing the progression of storms. Severe Thunderstorm Warnings appear as yellow boxes. Special Marine Warnings appear as cyan boxes.

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Additional recaps can be found on the NWS Chicago Past Events Page