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Severe Thunderstorm Watch — Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Winthrop Harbor to Wilmette Harbor IL, LM, Wilmette Harbor to Northerly Island IL, LM, Northerly Island to Calumet Harbor IL, LM, Calumet Harbor IL to Gary IN, LM, Gary to Burns Harbor IN, LM, Burns Harbor to Michigan City IN, LM
Issued
12:33 PM CDT · Sat, Jul 4 2026
Expires
7:00 PM CDT · Sat, Jul 4 2026
Issuing Office
NWS KLOT

Affected Areas

Benton County, IN Jasper County, IN Lake County, IN Newton County, IN Porter County, IN Winthrop Harbor to Wilmette Harbor IL, LM Wilmette Harbor to Northerly Island IL, LM Northerly Island to Calumet Harbor IL, LM Calumet Harbor IL to Gary IN, LM Gary to Burns Harbor IN, LM Burns Harbor to Michigan City IN, LM

Official Bulletin

081
WWUS63 KLOT 041733
WCNLOT

WATCH COUNTY NOTIFICATION FOR WATCH 455
NATIONAL WEATHER SERVICE CHICAGO IL
1233 PM CDT SAT JUL 4 2026

ILC031-043-053-063-075-089-091-093-099-105-197-INC007-073-089-111-127-050000-
/O.NEW.KLOT.SV.A.0455.260704T1733Z-260705T0000Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
455 IN EFFECT UNTIL 7 PM CDT /8 PM EDT/ THIS EVENING FOR THE
FOLLOWING AREAS

IN ILLINOIS THIS WATCH INCLUDES 11 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN EAST CENTRAL ILLINOIS

FORD                  IROQUOIS

IN NORTH CENTRAL ILLINOIS

LA SALLE

IN NORTHEAST ILLINOIS

COOK                  DUPAGE                GRUNDY
KANE                  KANKAKEE              KENDALL
WILL

IN INDIANA THIS WATCH INCLUDES 5 COUNTIES

IN NORTHWEST INDIANA

BENTON                JASPER                LAKE IN
NEWTON                PORTER

THIS INCLUDES THE CITIES OF AURORA, BOLINGBROOK, BOURBONNAIS,
CAROL STREAM, CHESTERTON, CHICAGO, COAL CITY, DEMOTTE,
DOWNERS GROVE, DWIGHT, ELGIN, EVANSTON, FAIRBURY, FOWLER, GARY,
GIBSON CITY, GILMAN, HAMMOND, JOLIET, KANKAKEE, KENTLAND,
LA SALLE, LEMONT, LOMBARD, MARSEILLES, MENDOTA, MERRILLVILLE,
MINOOKA, MOROCCO, MORRIS, NAPERVILLE, OAK LAWN, ORLAND PARK,
OSWEGO, OTTAWA, OXFORD, PARK FOREST, PAXTON, PLANO, PONTIAC,
PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, STREATOR, VALPARAISO,
WATSEKA, WHEATON, WILMINGTON, AND YORKVILLE.

$$

LMZ740>745-050000-
/O.NEW.KLOT.SV.A.0455.260704T1733Z-260705T0000Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
455 IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING AREAS

THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS

WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
BURNS HARBOR TO MICHIGAN CITY IN

$$