Watches, Warnings & Advisories
2 products found for Marine Zone: LMZ740
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 339 AM CST Sat Nov 15 2025 LMZ740>745-160945- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 339 AM CST Sat Nov 15 2025 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Today and Tonight. Weather hazards expected... Hazardous conditions for small craft. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Sunday through Tuesday... Hazardous conditions for small craft are likely. Thursday and Friday... Hazardous conditions for small craft are likely. $$ Doom Visit us at www.weather.gov/chicago
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 752 AM CST Sat Nov 15 2025 LMZ740>743-152200- /O.EXT.KLOT.SC.Y.0101.251115T1352Z-251116T2200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 752 AM CST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM CST SUNDAY... * WHAT...Southwest winds to 25 kt becoming northwest to 30 kt. Significant waves building to 7 ft occasionally to 9 ft tonight. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...Until 4 PM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$