429
NWUS53 KLOT 182144
LSRLOT
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
444 PM CDT THU JUN 18 2026
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
..REMARKS..
0400 PM FLOOD 2 NNW MERRILLVILLE 41.49N 87.34W
06/17/2026 LAKE IN PUBLIC
PHOTO SHARED TO SOCIAL MEDIA SHOWS FLOODED
PARKING LOT IN MERRILLVILLE. TIME ESTIMATED.
0400 PM FLOOD 1 WSW DYER 41.50N 87.52W
06/17/2026 LAKE IN PUBLIC
PHOTOS AND VIDEOS SHARED TO SOCIAL MEDIA
SHOW ROADWAY AND YARD FLOODING IN DYER. TIME
ESTIMATED.
0410 PM FLOOD 3 N MERRILLVILLE 41.51N 87.32W
06/17/2026 LAKE IN PUBLIC
PUBLIC REPORT OF STANDING WATER ON I-65 NEAR
61ST AVENUE.
0415 PM FLOOD 1 SSE GARY 41.59N 87.34W
06/18/2026 LAKE IN FIRE DEPT/RESCUE
GARY FIRE DEPARTMENT REPORTS MULTIPLE
ROADWAYS FLOODED ACROSS THE CITY. TIME
ESTIMATED.
0400 PM FLOOD 1 ESE OLYMPIA FIELDS 41.51N 87.67W
06/17/2026 COOK IL BROADCAST MEDIA
ROADWAY FLOODING IN OLYMPIA FIELDS. SOME
INUNDATION REMAINED A FEW HOURS AFTER
RAINFALL. TIME ESTIMATED.
0400 PM FLOOD CHICAGO HEIGHTS 41.51N 87.63W
06/17/2026 COOK IL PUBLIC
PHOTO SHARED TO SOCIAL MEDIA SHOWS CAR
STALLED IN FLOODED UNDERPASS ALONG US-30
NEAR SOUTH HALSTED STREET. WATER
APPROXIMATELY 1-2 FEET DEEP. TIME ESTIMATED.
0415 PM FLASH FLOOD CHICAGO HEIGHTS 41.51N 87.63W
06/17/2026 COOK IL BROADCAST MEDIA
REPORT OF FLOODED BASEMENT IN CHICAGO
HEIGHTS. NEARBY ROADWAY FLOODED WITH A FEW
FEET OF STANDING WATER. MULTIPLE PUBLIC
REPORTS OF FLOODED ROADWAYS ACROSS CHICAGO
HEIGHTS. TIME ESTIMATED.
0445 PM FLOOD 1 NE PARK FOREST 41.50N 87.67W
06/17/2026 COOK IL PUBLIC
VIDEO SHARED TO SOCIAL MEDIA SHOWS ANDOVER
STREET FLOODED WITH APPROXIMATELY 1 FOOT OF
WATER EAST OF ANDOVER COURT.
WSL
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