479
WWUS63 KLOT 211958
WCNLOT

WATCH COUNTY NOTIFICATION FOR WATCH 610
NATIONAL WEATHER SERVICE CHICAGO IL
258 PM CDT FRI AUG 21 2026

ILC007-031-037-043-053-063-075-089-091-093-097-099-103-105-111-
141-197-201-INC089-111-220300-
/O.NEW.KLOT.SV.A.0610.260821T1958Z-260822T0300Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
610 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING
AREAS

IN ILLINOIS THIS WATCH INCLUDES 18 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN EAST CENTRAL ILLINOIS

FORD                  IROQUOIS

IN NORTH CENTRAL ILLINOIS

BOONE                 DE KALB               LA SALLE
LEE                   OGLE                  WINNEBAGO

IN NORTHEAST ILLINOIS

COOK                  DUPAGE                GRUNDY
KANE                  KANKAKEE              KENDALL
LAKE IL               MCHENRY               WILL

IN INDIANA THIS WATCH INCLUDES 2 COUNTIES

IN NORTHWEST INDIANA

LAKE IN               NEWTON

THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, BYRON, CAROL STREAM,
CHICAGO, COAL CITY, CRYSTAL LAKE, DEKALB, DIXON, DOWNERS GROVE,
DWIGHT, ELGIN, EVANSTON, FAIRBURY, GARY, GIBSON CITY, GILMAN,
GURNEE, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LA SALLE, LEMONT,
LOMBARD, MARSEILLES, MCHENRY, MENDOTA, MERRILLVILLE, MINOOKA,
MOROCCO, MORRIS, MUNDELEIN, NAPERVILLE, OAK LAWN, OREGON,
ORLAND PARK, OSWEGO, OTTAWA, PARK FOREST, PAXTON, PLANO, PONTIAC,
ROCHELLE, ROCKFORD, ROSELAWN, SCHAUMBURG, STREATOR, SYCAMORE,
WATSEKA, WAUKEGAN, WHEATON, WILMINGTON, WOODSTOCK, AND YORKVILLE.

$$

LMZ740>744-777-779-220300-
/O.NEW.KLOT.SV.A.0610.260821T1958Z-260822T0300Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
610 IN EFFECT UNTIL 10 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
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5NM
OFFSHORE TO MID LAKE
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM
OFFSHORE TO MID LAKE

$$