626
FZUS53 KLOT 100807
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
307 AM CDT Tue Mar 10 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.

LMZ740-741-101530-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
307 AM CDT Tue Mar 10 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH LATE WEDNESDAY NIGHT...

.TODAY...Southwest winds 10 to 20 kt becoming north and increasing
to 15 to 25 kt becoming north in the morning. Areas of fog.
Chance of showers and thunderstorms mainly late in the afternoon.
Waves 1 to 3 ft building to 3 to 6 ft occasionally to 8 ft.
.TONIGHT...North winds 15 to 25 kt. Areas of fog. Rain showers
with thunderstorms likely. Some thunderstorms may be severe. Waves
3 to 6 ft occasionally to 8 ft.
.WEDNESDAY...North winds 15 to 25 kt becoming northwest to 30 kt.
Rain showers in the morning, then showers and a chance of snow
showers in the afternoon. Waves 4 to 6 ft occasionally to 8 ft
building to 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY NIGHT...Northwest winds to 30 kt diminishing to 10 to
20 kt. Mostly cloudy in the evening then clearing. Waves 5 to
8 ft occasionally to 10 ft subsiding to 3 to 5 ft late.

$$

LMZ742-743-101530-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
307 AM CDT Tue Mar 10 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...West winds 10 to 15 kt becoming northeast 10 to 20 kt mid
to late morning. Areas of fog. Chance of showers and thunderstorms
mainly late in the afternoon. Some thunderstorms may be severe.
Waves 1 to 2 ft building to 2 to 4 ft.
.TONIGHT...North winds 10 to 15 kt becoming northwest overnight.
Areas of fog. Rain showers with thunderstorms likely. Some
thunderstorms may be severe. Waves 2 to 4 ft.
.WEDNESDAY...Northwest winds 15 to 25 kt increasing to 30 kt.
Occasional 35 kt gales possible in the afternoon. Occasional 35
kt gales possible in the afternoon. Patchy fog in the morning.
Rain showers in the morning, then showers and a chance of snow
showers in the afternoon. Waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft.
.WEDNESDAY NIGHT...Northwest winds to 30 kt diminishing to 15 to
25 kt. Mostly cloudy in the evening then clearing. Waves 5 to
8 ft occasionally to 10 ft subsiding to 3 to 5 ft late.

$$

LMZ744-745-101530-
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
307 AM CDT Tue Mar 10 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
THURSDAY MORNING...

.TODAY...Southwest winds 10 to 15 kt becoming northeast by late
morning. Patchy fog in the morning, then areas of fog in the
afternoon. Chance of showers and thunderstorms mainly late in the
afternoon. Some thunderstorms may be severe. Waves 1 to 2 ft
building to 2 to 4 ft.
.TONIGHT...Southeast winds 10 to 15 kt becoming west overnight.
Areas of fog. Rain showers with thunderstorms likely. Some
thunderstorms may be severe. Waves 2 to 4 ft.
.WEDNESDAY...Northwest winds 15 to 20 kt increasing to 30 kt.
Occasional 35 kt gales possible in the afternoon. Patchy fog in
the morning. Rain showers in the morning, then showers and a
chance of snow showers in the afternoon. Waves 3 to 5 ft building
to 8 to 11 ft occasionally to 14 ft.
.WEDNESDAY NIGHT...Northwest winds to 30 kt diminishing to 15 to
25 kt. Mostly cloudy in the evening then clearing. Waves 8 to
11 ft occasionally to 14 ft subsiding to 4 to 7 ft occasionally
to 9 ft.

$$

Carlaw