Hazardous marine condition(s):
Hazardous Weather Outlook
Small Craft Advisory
LMZ740>742-041515-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
330 AM CDT Mon May 4 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH THIS EVENING
TODAY
Southwest winds 10 to 15 kt increasing to 20 to 25 kt
later this morning. A few gusts to 30 kt this afternoon. Mostly
sunny. Waves 1 to 3 ft.
TONIGHT
Southwest winds 10 to 20 kt becoming northwest 10 to
15 kt overnight. Chance of showers and thunderstorms in the
evening, then slight chance of showers overnight. Waves 1 to 3 ft.
TUESDAY
North winds around 10 kt becoming northeast in the
afternoon. Slight chance of showers. Waves 1 to 3 ft.
TUESDAY NIGHT
Southeast winds around 10 kt becoming northwest
overnight. Slight chance of showers in the evening. Waves 1 to
2 ft.
$$