Northerly Island - Calumet Harbor
LMZ740>742-100915- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 926 PM CDT Tue Jun 9 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT WEDNESDAY
..SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING
REST OF TONIGHT
Northeast winds 5 to 10 kt becoming south late. Areas of dense fog. Chance of showers and thunderstorms after midnight. Waves 1 ft or less.
WEDNESDAY
South winds 10 to 15 kt becoming southwest and increasing to 20 to 25 kt. Patchy dense fog in the early morning. Chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Some thunderstorms may be severe in the afternoon. Waves building to 1 to 3 ft.
WEDNESDAY NIGHT
Southwest winds 20 to 25 kt diminishing to 10 to 20 kt. Showers and thunderstorms likely. Waves 2 to 4 ft subsiding to 1 to 3 ft.
THURSDAY
Southwest winds 10 to 15 kt becoming south and increasing to 15 to 25 kt in the afternoon. Showers and thunderstorms likely in the afternoon. Waves building to 2 to 4 ft. $$
..DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT WEDNESDAY
..SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING
REST OF TONIGHT
Northeast winds 5 to 10 kt becoming south late. Areas of dense fog. Chance of showers and thunderstorms after midnight. Waves 1 ft or less.
WEDNESDAY
South winds 10 to 15 kt becoming southwest and increasing to 20 to 25 kt. Patchy dense fog in the early morning. Chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Some thunderstorms may be severe in the afternoon. Waves building to 1 to 3 ft.
WEDNESDAY NIGHT
Southwest winds 20 to 25 kt diminishing to 10 to 20 kt. Showers and thunderstorms likely. Waves 2 to 4 ft subsiding to 1 to 3 ft.
THURSDAY
Southwest winds 10 to 15 kt becoming south and increasing to 15 to 25 kt in the afternoon. Showers and thunderstorms likely in the afternoon. Waves building to 2 to 4 ft. $$
