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Home Return to list Severe Thunderstorm Watch 0220 Issued by the Chicago Forecast Office
Action: New Issued At: 2026-05-18 10:03:44 122 WWUS63 KLOT 181503 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1003 AM CDT MON MAY 18 2026 ILC031-043-053-063-075-091-093-105-197-INC007-073-089-111-127- 182200- /O.NEW.KLOT.SV.A.0220.260518T1505Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 220 IN EFFECT UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 9 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE GRUNDY KANKAKEE KENDALL WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHESTERTON, CHICAGO, COAL CITY, DEMOTTE, DOWNERS GROVE, DWIGHT, EVANSTON, FAIRBURY, FOWLER, GARY, GIBSON CITY, GILMAN, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LEMONT, LOMBARD, MERRILLVILLE, MINOOKA, MOROCCO, MORRIS, NAPERVILLE, OAK LAWN, ORLAND PARK, OSWEGO, OXFORD, PARK FOREST, PAXTON, PLANO, PONTIAC, PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, VALPARAISO, WATSEKA, WHEATON, WILMINGTON, AND YORKVILLE. $$ LMZ740>745-779-182200- /O.NEW.KLOT.SV.A.0220.260518T1505Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 220 IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: New Issued At: 2026-05-18 10:03:44 122 WWUS63 KLOT 181503 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1003 AM CDT MON MAY 18 2026 ILC031-043-053-063-075-091-093-105-197-INC007-073-089-111-127- 182200- /O.NEW.KLOT.SV.A.0220.260518T1505Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 220 IN EFFECT UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 9 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE GRUNDY KANKAKEE KENDALL WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHESTERTON, CHICAGO, COAL CITY, DEMOTTE, DOWNERS GROVE, DWIGHT, EVANSTON, FAIRBURY, FOWLER, GARY, GIBSON CITY, GILMAN, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LEMONT, LOMBARD, MERRILLVILLE, MINOOKA, MOROCCO, MORRIS, NAPERVILLE, OAK LAWN, ORLAND PARK, OSWEGO, OXFORD, PARK FOREST, PAXTON, PLANO, PONTIAC, PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, VALPARAISO, WATSEKA, WHEATON, WILMINGTON, AND YORKVILLE. $$ LMZ740>745-779-182200- /O.NEW.KLOT.SV.A.0220.260518T1505Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 220 IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Continued Issued At: 2026-05-18 10:53:16 293 WWUS63 KLOT 181553 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1053 AM CDT MON MAY 18 2026 ILC063-093-105-181700- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN ILLINOIS THIS CANCELS 3 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN NORTHEAST ILLINOIS GRUNDY KENDALL THIS INCLUDES THE CITIES OF COAL CITY, DWIGHT, FAIRBURY, MINOOKA, MORRIS, OSWEGO, PLANO, PONTIAC, AND YORKVILLE. $$ ILC031-043-053-075-091-197-INC007-073-089-111-127-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHESTERTON, CHICAGO, DEMOTTE, DOWNERS GROVE, EVANSTON, FOWLER, GARY, GIBSON CITY, GILMAN, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LEMONT, LOMBARD, MERRILLVILLE, MOROCCO, NAPERVILLE, OAK LAWN, ORLAND PARK, OXFORD, PARK FOREST, PAXTON, PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, VALPARAISO, WATSEKA, WHEATON, AND WILMINGTON. $$ LMZ740>745-779-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT THIS AFTERNOON 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 LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Continued Issued At: 2026-05-18 10:53:16 293 WWUS63 KLOT 181553 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1053 AM CDT MON MAY 18 2026 ILC063-093-105-181700- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN ILLINOIS THIS CANCELS 3 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN NORTHEAST ILLINOIS GRUNDY KENDALL THIS INCLUDES THE CITIES OF COAL CITY, DWIGHT, FAIRBURY, MINOOKA, MORRIS, OSWEGO, PLANO, PONTIAC, AND YORKVILLE. $$ ILC031-043-053-075-091-197-INC007-073-089-111-127-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHESTERTON, CHICAGO, DEMOTTE, DOWNERS GROVE, EVANSTON, FOWLER, GARY, GIBSON CITY, GILMAN, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LEMONT, LOMBARD, MERRILLVILLE, MOROCCO, NAPERVILLE, OAK LAWN, ORLAND PARK, OXFORD, PARK FOREST, PAXTON, PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, VALPARAISO, WATSEKA, WHEATON, AND WILMINGTON. $$ LMZ740>745-779-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Cancelled Issued At: 2026-05-18 10:53:16 293 WWUS63 KLOT 181553 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1053 AM CDT MON MAY 18 2026 ILC063-093-105-181700- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN ILLINOIS THIS CANCELS 3 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN NORTHEAST ILLINOIS GRUNDY KENDALL THIS INCLUDES THE CITIES OF COAL CITY, DWIGHT, FAIRBURY, MINOOKA, MORRIS, OSWEGO, PLANO, PONTIAC, AND YORKVILLE. $$ ILC031-043-053-075-091-197-INC007-073-089-111-127-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHESTERTON, CHICAGO, DEMOTTE, DOWNERS GROVE, EVANSTON, FOWLER, GARY, GIBSON CITY, GILMAN, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LEMONT, LOMBARD, MERRILLVILLE, MOROCCO, NAPERVILLE, OAK LAWN, ORLAND PARK, OXFORD, PARK FOREST, PAXTON, PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, VALPARAISO, WATSEKA, WHEATON, AND WILMINGTON. $$ LMZ740>745-779-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT THIS AFTERNOON 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 LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Continued Issued At: 2026-05-18 11:37:48 411 WWUS63 KLOT 181637 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1137 AM CDT MON MAY 18 2026 ILC031-043-053-075-091-197-181745- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN ILLINOIS THIS CANCELS 6 COUNTIES IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE WILL THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHICAGO, DOWNERS GROVE, EVANSTON, GIBSON CITY, GILMAN, JOLIET, KANKAKEE, LEMONT, LOMBARD, NAPERVILLE, OAK LAWN, ORLAND PARK, PARK FOREST, PAXTON, SCHAUMBURG, WATSEKA, WHEATON, AND WILMINGTON. $$ INC007-073-089-111-127-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF CHESTERTON, DEMOTTE, FOWLER, GARY, HAMMOND, KENTLAND, MERRILLVILLE, MOROCCO, OXFORD, PORTAGE, RENSSELAER, ROSELAWN, AND VALPARAISO. $$ LMZ740>745-779-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Continued Issued At: 2026-05-18 11:37:48 411 WWUS63 KLOT 181637 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1137 AM CDT MON MAY 18 2026 ILC031-043-053-075-091-197-181745- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN ILLINOIS THIS CANCELS 6 COUNTIES IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE WILL THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHICAGO, DOWNERS GROVE, EVANSTON, GIBSON CITY, GILMAN, JOLIET, KANKAKEE, LEMONT, LOMBARD, NAPERVILLE, OAK LAWN, ORLAND PARK, PARK FOREST, PAXTON, SCHAUMBURG, WATSEKA, WHEATON, AND WILMINGTON. $$ INC007-073-089-111-127-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF CHESTERTON, DEMOTTE, FOWLER, GARY, HAMMOND, KENTLAND, MERRILLVILLE, MOROCCO, OXFORD, PORTAGE, RENSSELAER, ROSELAWN, AND VALPARAISO. $$ LMZ740>745-779-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT THIS AFTERNOON 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 LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Cancelled Issued At: 2026-05-18 11:37:48 411 WWUS63 KLOT 181637 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1137 AM CDT MON MAY 18 2026 ILC031-043-053-075-091-197-181745- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN ILLINOIS THIS CANCELS 6 COUNTIES IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE WILL THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CAROL STREAM, CHICAGO, DOWNERS GROVE, EVANSTON, GIBSON CITY, GILMAN, JOLIET, KANKAKEE, LEMONT, LOMBARD, NAPERVILLE, OAK LAWN, ORLAND PARK, PARK FOREST, PAXTON, SCHAUMBURG, WATSEKA, WHEATON, AND WILMINGTON. $$ INC007-073-089-111-127-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT /6 PM EDT/ THIS AFTERNOON FOR THE FOLLOWING AREAS IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF CHESTERTON, DEMOTTE, FOWLER, GARY, HAMMOND, KENTLAND, MERRILLVILLE, MOROCCO, OXFORD, PORTAGE, RENSSELAER, ROSELAWN, AND VALPARAISO. $$ LMZ740>745-779-182200- /O.CON.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Cancelled Issued At: 2026-05-18 12:35:19 058 WWUS63 KLOT 181735 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1235 PM CDT MON MAY 18 2026 INC007-073-089-111-127-181845- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN INDIANA THIS CANCELS 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF CHESTERTON, DEMOTTE, FOWLER, GARY, HAMMOND, KENTLAND, MERRILLVILLE, MOROCCO, OXFORD, PORTAGE, RENSSELAER, ROSELAWN, AND VALPARAISO. $$ LMZ740>745-779-181845- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS THIS CANCELS THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ Action: Cancelled Issued At: 2026-05-18 12:35:19 058 WWUS63 KLOT 181735 WCNLOT WATCH COUNTY NOTIFICATION FOR WATCH 220 NATIONAL WEATHER SERVICE CHICAGO IL 1235 PM CDT MON MAY 18 2026 INC007-073-089-111-127-181845- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS IN INDIANA THIS CANCELS 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF CHESTERTON, DEMOTTE, FOWLER, GARY, HAMMOND, KENTLAND, MERRILLVILLE, MOROCCO, OXFORD, PORTAGE, RENSSELAER, ROSELAWN, AND VALPARAISO. $$ LMZ740>745-779-181845- /O.CAN.KLOT.SV.A.0220.000000T0000Z-260518T2200Z/ THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM WATCH 220 FOR THE FOLLOWING AREAS THIS CANCELS THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL CALUMET HARBOR IL TO GARY IN GARY TO BURNS HARBOR IN BURNS HARBOR TO MICHIGAN CITY IN LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM OFFSHORE TO MID LAKE $$ | 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