923
FZUS53 KLOT 311507
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1007 AM CDT FRI JUL 31 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS, WHICH
IS THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVES, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.
LMZ740>742-312115-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
1007 AM CDT FRI JUL 31 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
REST OF TODAY
SOUTHEAST WINDS 10 TO 15 KT INCREASING TO 15 TO
20 KT. SHOWERS LIKELY IN THE AFTERNOON. WAVES AROUND 1 FT
BUILDING TO 1 TO 3 FT.
TONIGHT
SOUTHEAST WINDS 15 TO 20 KT BECOMING EAST 20 TO 25 KT
OVERNIGHT. SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY
EAST WINDS 20 TO 25 KT BECOMING NORTHEAST TO 30 KT IN
THE AFTERNOON. SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES
BUILDING TO 6 TO 9 FT OCCASIONALLY TO 12 FT.
SATURDAY NIGHT
NORTHEAST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING, THEN SLIGHT CHANCE OF SHOWERS OVERNIGHT. WAVES
SUBSIDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
LMZ743>745-312115-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
1007 AM CDT FRI JUL 31 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
LATE SUNDAY NIGHT...
REST OF TODAY
SOUTH WINDS 10 TO 15 KT. CHANCE OF SHOWERS IN
THE AFTERNOON. WAVES 1 FT OR LESS BUILDING TO 1 TO 2 FT.
TONIGHT
SOUTHEAST WINDS 10 TO 20 KT BECOMING EAST OVERNIGHT.
SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES 1 TO 3 FT BUILDING
TO 2 TO 4 FT.
SATURDAY
EAST WINDS 15 TO 25 KT BECOMING NORTHEAST TO 30 KT
IN THE AFTERNOON. SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES 2
TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
SATURDAY NIGHT
NORTHEAST WINDS TO 30 KT. SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS
OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
PETR
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