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Home Return to list Small Craft Advisory 0045 Issued by the Chicago Forecast Office
Action: New Issued At: 2025-04-07 05:16:07 238 WHUS73 KLOT 071015 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 515 AM CDT Mon Apr 7 2025 LMZ740>742-071815- /O.NEW.KLOT.SC.Y.0045.250407T1015Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.250407T1400Z-250407T2100Z/ /O.CON.KLOT.SC.Y.0044.250407T2100Z-250408T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 515 AM CDT Mon Apr 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 7 AM CDT TUESDAY... * WHAT...For the first Small Craft Advisory, southwest winds to 30 kt shifting northwest. For the Gale Warning, north gales to 40 kt and significant waves to 10 ft occasionally to 13 ft expected. For the second Small Craft Advisory, north winds to 30 kt and significant waves to 10 ft occasionally to 13 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the first Small Craft Advisory, until 9 AM CDT this morning. For the Gale Warning, from 9 AM this morning to 4 PM CDT this afternoon. For the second Small Craft Advisory, from 4 PM this afternoon to 7 AM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LMZ743>745-071815- /O.NEW.KLOT.SC.Y.0045.250407T1015Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.250407T1400Z-250408T0000Z/ /O.CON.KLOT.SC.Y.0044.250408T0000Z-250408T2100Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 515 AM CDT Mon Apr 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM CDT TUESDAY... * WHAT...For the first Small Craft Advisory, southwest winds to 25 kt. For the Gale Warning, north gales to 40 kt and significant waves to 14 ft occasionally to 18 ft expected. For the second Small Craft Advisory, north winds to 30 kt and significant waves to 12 ft occasionally to 16 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...For the first Small Craft Advisory, until 9 AM CDT this morning. For the Gale Warning, from 9 AM this morning to 7 PM CDT this evening. For the second Small Craft Advisory, from 7 PM this evening to 4 PM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: New Issued At: 2025-04-07 05:16:07 238 WHUS73 KLOT 071015 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 515 AM CDT Mon Apr 7 2025 LMZ740>742-071815- /O.NEW.KLOT.SC.Y.0045.250407T1015Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.250407T1400Z-250407T2100Z/ /O.CON.KLOT.SC.Y.0044.250407T2100Z-250408T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 515 AM CDT Mon Apr 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 7 AM CDT TUESDAY... * WHAT...For the first Small Craft Advisory, southwest winds to 30 kt shifting northwest. For the Gale Warning, north gales to 40 kt and significant waves to 10 ft occasionally to 13 ft expected. For the second Small Craft Advisory, north winds to 30 kt and significant waves to 10 ft occasionally to 13 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the first Small Craft Advisory, until 9 AM CDT this morning. For the Gale Warning, from 9 AM this morning to 4 PM CDT this afternoon. For the second Small Craft Advisory, from 4 PM this afternoon to 7 AM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LMZ743>745-071815- /O.NEW.KLOT.SC.Y.0045.250407T1015Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.250407T1400Z-250408T0000Z/ /O.CON.KLOT.SC.Y.0044.250408T0000Z-250408T2100Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 515 AM CDT Mon Apr 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM CDT TUESDAY... * WHAT...For the first Small Craft Advisory, southwest winds to 25 kt. For the Gale Warning, north gales to 40 kt and significant waves to 14 ft occasionally to 18 ft expected. For the second Small Craft Advisory, north winds to 30 kt and significant waves to 12 ft occasionally to 16 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...For the first Small Craft Advisory, until 9 AM CDT this morning. For the Gale Warning, from 9 AM this morning to 7 PM CDT this evening. For the second Small Craft Advisory, from 7 PM this evening to 4 PM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Expired Issued At: 2025-04-07 09:13:00 516 WHUS73 KLOT 071412 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 912 AM CDT Mon Apr 7 2025 LMZ740>742-072215- /O.EXP.KLOT.SC.Y.0045.000000T0000Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.000000T0000Z-250407T2100Z/ /O.CON.KLOT.SC.Y.0044.250407T2100Z-250408T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 912 AM CDT Mon Apr 7 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 7 AM CDT TUESDAY... * WHAT...For the Gale Warning, north winds to 40 kt and significant waves to 10 ft occasionally to 13 ft. For the Small Craft Advisory, north winds to 35 kt and significant waves to 10 ft occasionally to 13 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Gale Warning, until 4 PM CDT this afternoon. For the Small Craft Advisory, from 4 PM this afternoon to 7 AM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LMZ743>745-072215- /O.EXP.KLOT.SC.Y.0045.000000T0000Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.000000T0000Z-250408T0000Z/ /O.CON.KLOT.SC.Y.0044.250408T0000Z-250408T2100Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 912 AM CDT Mon Apr 7 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM CDT TUESDAY... ...SMALL CRAFT ADVISORY HAS EXPIRED... * WHAT...For the Gale Warning, north winds to 40 kt and significant waves to 14 ft occasionally to 18 ft. For the Small Craft Advisory, north winds to 30 kt and significant waves to 12 ft occasionally to 16 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 PM CDT this evening. For the Small Craft Advisory, from 7 PM this evening to 4 PM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ Action: Expired Issued At: 2025-04-07 09:13:00 516 WHUS73 KLOT 071412 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 912 AM CDT Mon Apr 7 2025 LMZ740>742-072215- /O.EXP.KLOT.SC.Y.0045.000000T0000Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.000000T0000Z-250407T2100Z/ /O.CON.KLOT.SC.Y.0044.250407T2100Z-250408T1200Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 912 AM CDT Mon Apr 7 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 7 AM CDT TUESDAY... * WHAT...For the Gale Warning, north winds to 40 kt and significant waves to 10 ft occasionally to 13 ft. For the Small Craft Advisory, north winds to 35 kt and significant waves to 10 ft occasionally to 13 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Gale Warning, until 4 PM CDT this afternoon. For the Small Craft Advisory, from 4 PM this afternoon to 7 AM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LMZ743>745-072215- /O.EXP.KLOT.SC.Y.0045.000000T0000Z-250407T1400Z/ /O.CON.KLOT.GL.W.0014.000000T0000Z-250408T0000Z/ /O.CON.KLOT.SC.Y.0044.250408T0000Z-250408T2100Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 912 AM CDT Mon Apr 7 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM CDT TUESDAY... ...SMALL CRAFT ADVISORY HAS EXPIRED... * WHAT...For the Gale Warning, north winds to 40 kt and significant waves to 14 ft occasionally to 18 ft. For the Small Craft Advisory, north winds to 30 kt and significant waves to 12 ft occasionally to 16 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...For the Gale Warning, until 7 PM CDT this evening. For the Small Craft Advisory, from 7 PM this evening to 4 PM CDT Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||