Heavy rain caused flash flooding across parts of northwest Illinois during the morning of August 8th when rainfall of 3 to 5 inches with locally higher amounts fell.  Previous rainfall the day before brought two day rainfall totals to 6 to 9 inches across many areas across northwest Illinois.  A church was struck by lightning in Rockford during the morning of August 8th causing significant damage.  Rockford Airport measured a two day rain total of 6.15 inches for August 7th and 8th with 3.23 inches on August 8th which set a new rain record for the day.

Flash Flood in DE KALB, ILLINOIS
From 08-AUG-22 06:50:00 to 08-AUG-22 09:00:00 (CST-6)
Location: DEKALB
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple reports of street flooding were received from Sycamore and DeKalb.

Flash Flood in OGLE, ILLINOIS
From 08-AUG-22 08:40:00 to 08-AUG-22 08:40:00 (CST-6)
Location: LOST NATION
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood waters from nearby fields eroded a large section of property at 5130 Route 2, just below the bluff at the edge of the Rock River valley.  An estimated 4 to 6 feet of ground was carried away.  A 500 gallon propane tank was washed away and left at the bottom of the scoured pit.

Flash Flood in OGLE, ILLINOIS
From 08-AUG-22 05:00:00 to 08-AUG-22 09:30:00 (CST-6)
Location: BUFFALO GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Standing water was reported in the Polo Fire Protection District Fire Station with knee deep water outside in the yard.  Two roads were closed due to flooding.  Basement flooding affected 35 houses.  Measured rainfall of 5.50 inches was reported in Polo with 3.50 inches falling in just 100 minutes.

Flash Flood in OGLE, ILLINOIS
From 08-AUG-22 04:30:00 to 08-AUG-22 09:00:00 (CST-6)
Location: BYRON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Standing water was reported at the Route 2 railroad underpass around 4:30 am CST which worsened to a depth of four feet an hour later.  A private weather station measured 5.29 inches of rain 3 miles east northeast of Bryon.

Flash Flood in WINNEBAGO, ILLINOIS
From 08-AUG-22 04:30:00 to 08-AUG-22 07:00:00 (CST-6)
Location: ROCKFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous intersections were flooded in the Rockford area.  Broadway Street and Eastmoreland Avenue was closed due to flooding and Sandy Hollow Road and Alpine Road was closed due to flooding.  Several creeks reached at least bankfull including Keith Creek near Charles Street and Hunter Avenue.

Flash Flood in WINNEBAGO, ILLINOIS
From 08-AUG-22 05:00:00 to 08-AUG-22 07:00:00 (CST-6)
Location: PERRYVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A small, typically dry ditch was out of its banks near Linden Road and Brookdale Road.

Flash Flood in WINNEBAGO, ILLINOIS
From 08-AUG-22 04:00:00 to 08-AUG-22 07:00:00 (CST-6)
Location: WINNEBAGO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Some backyards were under nearly one foot of water and widespread basement flooding was reported.

Lightning in WINNEBAGO, ILLINOIS
From 08-AUG-22 05:30:00 to 08-AUG-22 05:30:00 (CST-6)
Location: ROCKFORD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck the St. James Catholic Church at the corner of Prairie Street and 2nd Street.  A fire started and caused significant damage to the building.  A total of 47 firefighters battled the fire.  Three of the firefighters suffered non-life threatening injuries and were taken to local hospitals.