009
NWUS53 KLOT 192059
LSRLOT
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO IL
359 PM CDT TUE AUG 19 2025
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
..REMARKS..
0835 PM FLASH FLOOD 1 WSW GARY AIRPORT 41.61N 87.44W
08/18/2025 LAKE IN PUBLIC
MULTIPLE PUBLIC REPORTS ON SOCIAL MEDIA OF
BASEMENT FLOODING IN EAST CHICAGO. VIDEO
SHOWS NEARBY STREET AND YARD FLOODING.
0835 PM FLASH FLOOD 2 SSE WHITING 41.66N 87.48W
08/18/2025 LAKE IN PUBLIC
US 20 CLOSED DUE TO FLOODING. RELAYED VIA
SOCIAL MEDIA.
0841 PM FLASH FLOOD 1 SSE WHITING 41.66N 87.48W
08/18/2025 LAKE IN EMERGENCY MNGR
INDIANAPOLIS BLVD AT 128TH HAS ABOUT 3 FEET
OF WATER AND IS BEING CLOSED TO TRAFFIC.
0930 PM FLASH FLOOD WHITING 41.69N 87.50W
08/18/2025 LAKE IN LOCAL OFFICIAL
COMBINED SEWER STORAGE FACILITY EXCEEDED
CAPACITY AND OVERFLOWED DUE TO HEAVY
RAINFALL. RELAYED VIA BROADCAST MEDIA. TIME
ESTIMATED BASED UPON NEARBY REPORTS.
0930 PM FLASH FLOOD 1 WSW WHITING 41.68N 87.51W
08/18/2025 LAKE IN LOCAL OFFICIAL
MULTIPLE BASEMENTS FLOODED IN HAMMOND. TIME
ESTIMATED BASED UPON NEARBY REPORTS. RELAYED
VIA BROADCAST MEDIA.
0945 PM FLASH FLOOD 2 SSE GARY AIRPORT 41.59N 87.40W
08/18/2025 LAKE IN PUBLIC
PUBLIC REPORTS OF BASEMENT FLOODING IN GARY.
TIME ESTIMATED BASED UPON NEARBY REPORTS.
0946 PM FLASH FLOOD 2 E HAMMOND 41.59N 87.46W
08/18/2025 LAKE IN PUBLIC
PUBLIC REPORT OF BASEMENT FLOODING IN
HESSVILLE NEIGHBORHOOD OF HAMMOND NEAR
MORTON ELEMENTARY.
1000 PM FLASH FLOOD WHITING 41.68N 87.50W
08/18/2025 LAKE IN PUBLIC
UP TO 3 FEET OF WATER ON INDIANAPOLIS
BOULEVARD FROM 120TH TO 129TH AND THE AREAS
OF DICKEY AND RILEY ROADS.
0633 PM FLASH FLOOD 2 NE ROSCOE 42.44N 88.99W
08/18/2025 WINNEBAGO IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0725 PM FLASH FLOOD 2 E ROCKTON 42.46N 89.04W
08/18/2025 WINNEBAGO IL PUBLIC
PUBLIC REPORT OF STREET FLOODING NEAR
ROCKTON ROAD AND DORR ROAD. FLOODING
EXTENDING INTO NEARBY YARDS.
0652 PM FLASH FLOOD LOCKPORT 41.59N 88.05W
08/18/2025 WILL IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0716 PM FLASH FLOOD 1 SE LOCKPORT 41.58N 88.05W
08/18/2025 WILL IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0735 PM FLASH FLOOD 2 SE LOCKPORT 41.57N 88.03W
08/18/2025 WILL IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0738 PM FLASH FLOOD 2 E MOKENA 41.54N 87.84W
08/18/2025 WILL IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0755 PM FLASH FLOOD 2 NE MOKENA 41.55N 87.85W
08/18/2025 WILL IL PUBLIC
AT LEAST 6 INCHES OF WATER IN UNDERPASS
UNDER RAILROAD TRACKS.
0900 PM FLASH FLOOD 3 NW BOLINGBROOK 41.73N 88.12W
08/18/2025 WILL IL NWS EMPLOYEE
1 TO 1.5 FEET OF STANDING WATER AT THE
INTERSECTION OF NAPER BLVD AND 87TH STREET.
AROUND 1 FOOT OF WATER ON ROADS ENCROACHING
ON DRIVEWAYS IN SURROUNDING NEIGHBORHOODS,
AND AT LEAST 6 INCHES OF FLOWING WATER AT
ARLINGTON AND RIVERWOODS.
0910 PM FLASH FLOOD JOLIET 41.53N 88.08W
08/18/2025 WILL IL PUBLIC
REPORTS OF STANDING OR FLOWING WATER ON MANY
STREETS OR INTERSECTIONS OF JOLIET.
1000 PM FLASH FLOOD 2 ENE MOKENA 41.54N 87.84W
08/18/2025 WILL IL PUBLIC
UP TO 3 FEET OF WATER ON ROADWAY.
1241 AM FLASH FLOOD 2 E MOKENA 41.54N 87.84W
08/19/2025 WILL IL PUBLIC
SEVERAL REPORTS FROM MPING OF FLOODED AND
CLOSED ROADS IN MOKENA.
0600 PM FLASH FLOOD COMPTON 41.69N 89.09W
08/18/2025 LEE IL PUBLIC
VIDEO SHARED TO SOCIAL MEDIA SHOWS SEVERAL
INCHES OF FLOWING WATER ON ROADWAYS AND A
PARKING LOT IN COMPTON.
0730 PM FLASH FLOOD 1 N PAW PAW 41.71N 88.98W
08/18/2025 LEE IL PUBLIC
REPORT ON SOCIAL MEDIA OF PAW PAW ROAD
FLOODED APPROXIMATELY HALF MILE NORTH OF PAW
PAW. POSSIBLY NEAR CREEK CROSSING AT DREDGE
ROAD.
0730 PM FLASH FLOOD 1 NW LA SALLE 41.34N 89.10W
08/18/2025 LA SALLE IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0800 PM FLASH FLOOD 2 SE YORKVILLE 41.62N 88.43W
08/18/2025 KENDALL IL PUBLIC
STREET FLOODED WITH AT LEAST 6 INCHES OF
STANDING WATER.
0809 PM FLASH FLOOD 1 S OSWEGO 41.67N 88.36W
08/18/2025 KENDALL IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0535 PM FLASH FLOOD 2 NNE WOODRIDGE 41.78N 88.04W
08/18/2025 DUPAGE IL NWS EMPLOYEE
IN DOWNERS GROVE, 6-8 INCHES OF WATER
FLOWING OVER THE ROAD AT BELMONT NEAR 59TH
STREET.
0610 PM FLASH FLOOD 1 W DOWNERS GROVE 41.79N 88.02W
08/18/2025 DUPAGE IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0625 PM FLASH FLOOD 1 NW DARIEN 41.76N 87.98W
08/18/2025 DUPAGE IL PUBLIC
REPORT ON SOCIAL MEDIA WITH PHOTOS SHOWING
4-6 INCHES OF WATER ON WASHINGTON STREET IN
DARIEN, WITH FLOODING ALSO IMPACTING HOUSES.
0836 PM FLASH FLOOD 1 E DOWNERS GROVE 41.79N 88.00W
08/18/2025 DUPAGE IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0837 PM FLASH FLOOD 3 NW BOLINGBROOK 41.73N 88.10W
08/18/2025 DUPAGE IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0910 PM FLASH FLOOD 1 SSE NAPERVILLE 41.76N 88.14W
08/18/2025 DUPAGE IL PUBLIC
1 TO 2 FEET OF WATER REPORTED ON GARTNER
ROAD WITH VEHICLES STRANDED. UNCLEAR EXACTLY
WHERE ON GARNER ROAD THIS IS OCCURRING.
0640 PM FLASH FLOOD 3 E PAW PAW 41.69N 88.93W
08/18/2025 DE KALB IL PUBLIC
VIDEO POSTED TO SOCIAL MEDIA SHOWS AT LEAST
A FOOT OF FLOWING WATER OVER CHICAGO ROAD
EAST OF PAW PAW.
0741 PM FLASH FLOOD 2 S ORLAND HILLS 41.57N 87.84W
08/18/2025 COOK IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0807 PM FLASH FLOOD 1 SE ORLAND HILLS 41.57N 87.83W
08/18/2025 COOK IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0809 PM FLASH FLOOD 2 W ORLAND HILLS 41.59N 87.88W
08/18/2025 COOK IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
0815 PM FLASH FLOOD 1 NE TINLEY PARK 41.59N 87.78W
08/18/2025 COOK IL PUBLIC
A FEW PUBLIC REPORTS OF BASEMENT FLOODING IN
TINLEY PARK. RELAYED VIA SOCIAL MEDIA.
PHOTOS AND VIDEOS SHOW FLOODED ROADWAYS WITH
AT LEAST SEVERAL INCHES OF FLOWING WATER IN
THE VICINITY. TIME ESTIMATED BASED UPON
NEARBY REPORTS.
0834 PM FLASH FLOOD 1 W MIDLOTHIAN 41.63N 87.73W
08/18/2025 COOK IL PUBLIC
REPORT RELAYED FROM MPING OF STREET
FLOODING.
1000 PM FLASH FLOOD THORNTON 41.58N 87.62W
08/18/2025 COOK IL PUBLIC
2 LANES COVERED IN WATER NEAR THE QUARRY ON
I294.
1244 AM FLASH FLOOD 2 S ORLAND HILLS 41.57N 87.84W
08/19/2025 COOK IL PUBLIC
SEVERAL REPORTS FROM FROM MPING OF FLOODED
STREETS.
0600 AM FLASH FLOOD 3 WNW ORLAND PARK 41.63N 87.90W
08/19/2025 COOK IL LAW ENFORCEMENT
143RD STREET CLOSED DUE TO FLOODING NEAR
CREEK CROSSING DRIVE. RELAYED VIA SOCIAL
MEDIA.
0600 AM FLASH FLOOD 3 WSW ORLAND HILLS 41.58N 87.89W
08/19/2025 COOK IL LAW ENFORCEMENT
WOLF ROAD FLOODED NEAR 167TH STREET NEAR
MARLEY CREEK CROSSING. RELAYED VIA SOCIAL
MEDIA.
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