Northerly Island - Calumet Harbor
LMZ740>743-181615- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 304 AM CST Sun Jan 18 2026
..GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING
TODAY
Southwest winds 15 to 25 kt. Snow likely in the late afternoon. Waves 2 to 4 ft.
TONIGHT
Southwest winds 15 to 25 kt becoming west gales to 40 kt after midnight. Snow in the evening, then a slight chance of snow overnight. Freezing spray overnight. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
MONDAY
West gales to 35 kt diminishing to 30 kt in the morning. Mostly cloudy in the morning, then becoming partly cloudy. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
MONDAY NIGHT
West winds 15 to 25 kt. Mostly cloudy. Waves 2 to 4 ft. Wave heights are for ice free areas. $$
..GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING
TODAY
Southwest winds 15 to 25 kt. Snow likely in the late afternoon. Waves 2 to 4 ft.
TONIGHT
Southwest winds 15 to 25 kt becoming west gales to 40 kt after midnight. Snow in the evening, then a slight chance of snow overnight. Freezing spray overnight. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
MONDAY
West gales to 35 kt diminishing to 30 kt in the morning. Mostly cloudy in the morning, then becoming partly cloudy. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
MONDAY NIGHT
West winds 15 to 25 kt. Mostly cloudy. Waves 2 to 4 ft. Wave heights are for ice free areas. $$
