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Home Return to list Small Craft Advisory 0040 Issued by the Chicago Forecast Office
Action: New Issued At: 2025-03-30 03:26:46 060 WHUS73 KLOT 300826 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 326 AM CDT Sun Mar 30 2025 LMZ740>745-301630- /O.NEW.KLOT.SC.Y.0040.250330T1400Z-250401T0900Z/ 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- 326 AM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 4 AM CDT TUESDAY... * WHAT...South winds to 30 kt shifting southwest this afternoon and northwest to 25 kt tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 9 AM this morning to 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-30 05:01:06 064 WHUS73 KLOT 301000 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 500 AM CDT Sun Mar 30 2025 LMZ740>742-301800- /O.NEW.KLOT.MF.Y.0003.250330T1000Z-250330T1500Z/ /O.CON.KLOT.SC.Y.0040.250330T1400Z-250401T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 500 AM CDT Sun Mar 30 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 AM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, south winds to 30 kt shifting southwest this afternoon and northwest to 25 kt tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Dense Fog Advisory, until 10 AM CDT this morning. For the Small Craft Advisory, from 9 AM this morning to 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ743>745-301800- /O.CON.KLOT.SC.Y.0040.250330T1400Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 500 AM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 AM CDT TUESDAY... * WHAT...South winds to 30 kt shifting southwest this afternoon and northwest to 25 kt tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...From 9 AM this morning to 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-30 05:01:06 064 WHUS73 KLOT 301000 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 500 AM CDT Sun Mar 30 2025 LMZ740>742-301800- /O.NEW.KLOT.MF.Y.0003.250330T1000Z-250330T1500Z/ /O.CON.KLOT.SC.Y.0040.250330T1400Z-250401T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 500 AM CDT Sun Mar 30 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 AM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, south winds to 30 kt shifting southwest this afternoon and northwest to 25 kt tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Dense Fog Advisory, until 10 AM CDT this morning. For the Small Craft Advisory, from 9 AM this morning to 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ743>745-301800- /O.CON.KLOT.SC.Y.0040.250330T1400Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 500 AM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 AM CDT TUESDAY... * WHAT...South winds to 30 kt shifting southwest this afternoon and northwest to 25 kt tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...From 9 AM this morning to 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-30 10:01:15 169 WHUS73 KLOT 301500 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 1000 AM CDT Sun Mar 30 2025 LMZ740>742-302300- /O.EXP.KLOT.MF.Y.0003.000000T0000Z-250330T1500Z/ /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 1000 AM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... ...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM CDT THIS MORNING... * WHAT...South to southwest winds to 25 kt shifting northwest tonight and significant waves to 6 ft occasionally to 8 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ743>745-302300- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1000 AM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...South to southwest winds to 30 kt shifting northwest to 25 kt tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-30 10:01:15 169 WHUS73 KLOT 301500 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 1000 AM CDT Sun Mar 30 2025 LMZ740>742-302300- /O.EXP.KLOT.MF.Y.0003.000000T0000Z-250330T1500Z/ /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 1000 AM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... ...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM CDT THIS MORNING... * WHAT...South to southwest winds to 25 kt shifting northwest tonight and significant waves to 6 ft occasionally to 8 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ743>745-302300- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1000 AM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...South to southwest winds to 30 kt shifting northwest to 25 kt tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-30 15:20:54 440 WHUS73 KLOT 302020 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 320 PM CDT Sun Mar 30 2025 LMZ740>745-310430- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 320 PM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...Southwest winds to 25 kt shifting northwest tonight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-30 21:35:35 076 WHUS73 KLOT 310234 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 934 PM CDT Sun Mar 30 2025 LMZ740>745-311045- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ 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- 934 PM CDT Sun Mar 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...West winds to 25 kt shifting to northwest overnight and significant waves to 8 ft occasionally to 10 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-31 03:13:43 604 WHUS73 KLOT 310813 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 313 AM CDT Mon Mar 31 2025 LMZ740>745-311615- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 313 AM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...North winds to 25 kt and significant waves to 9 ft occasionally to 12 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Highest waves expected east of Gary, IN. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-31 09:05:43 124 WHUS73 KLOT 311405 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 905 AM CDT Mon Mar 31 2025 LMZ740>745-312215- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ 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- 905 AM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...North winds to 25 kt and significant waves to 9 ft occasionally to 12 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-31 14:59:22 252 WHUS73 KLOT 311958 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 258 PM CDT Mon Mar 31 2025 LMZ740>742-010400- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ /O.NEW.KLOT.GL.A.0011.250402T0300Z-250402T1500Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 258 PM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... ...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... * WHAT...For the Small Craft Advisory, significant waves to 6 ft. For the Gale Watch, southeast winds to 35 kt and significant waves to 10 ft occasionally to 13 ft possible. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Small Craft Advisory, until 4 AM CDT Tuesday. For the Gale Watch, from Tuesday evening through Wednesday morning. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ743>745-010400- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 258 PM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...North winds to 25 kt and significant waves to 7 ft occasionally to 9 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-31 14:59:22 252 WHUS73 KLOT 311958 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 258 PM CDT Mon Mar 31 2025 LMZ740>742-010400- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ /O.NEW.KLOT.GL.A.0011.250402T0300Z-250402T1500Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 258 PM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... ...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... * WHAT...For the Small Craft Advisory, significant waves to 6 ft. For the Gale Watch, southeast winds to 35 kt and significant waves to 10 ft occasionally to 13 ft possible. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Small Craft Advisory, until 4 AM CDT Tuesday. For the Gale Watch, from Tuesday evening through Wednesday morning. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ743>745-010400- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 258 PM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...North winds to 25 kt and significant waves to 7 ft occasionally to 9 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Cancelled Issued At: 2025-03-31 22:03:47 754 WHUS73 KLOT 010303 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 1003 PM CDT Mon Mar 31 2025 LMZ740>742-011115- /O.CAN.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ /O.CON.KLOT.GL.A.0011.250402T0300Z-250402T1500Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 1003 PM CDT Mon Mar 31 2025 ...GALE WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...Southeast winds to 35 kt and significant waves to 10 ft occasionally to 13 ft possible. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...From Tuesday evening through Wednesday morning. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ743>745-010900- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1003 PM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...Northeast winds to 20 kt and significant waves to 6 ft occasionally to 8 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-03-31 22:03:47 754 WHUS73 KLOT 010303 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 1003 PM CDT Mon Mar 31 2025 LMZ740>742-011115- /O.CAN.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ /O.CON.KLOT.GL.A.0011.250402T0300Z-250402T1500Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 1003 PM CDT Mon Mar 31 2025 ...GALE WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...Southeast winds to 35 kt and significant waves to 10 ft occasionally to 13 ft possible. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...From Tuesday evening through Wednesday morning. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ743>745-010900- /O.CON.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1003 PM CDT Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... * WHAT...Northeast winds to 20 kt and significant waves to 6 ft occasionally to 8 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Expired Issued At: 2025-04-01 03:43:03 086 WHUS73 KLOT 010842 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 342 AM CDT Tue Apr 1 2025 LMZ743>745-011645- /O.EXP.KLOT.SC.Y.0040.000000T0000Z-250401T0900Z/ /O.NEW.KLOT.SC.Y.0041.250402T0000Z-250402T0600Z/ /O.NEW.KLOT.GL.W.0013.250402T0600Z-250402T2300Z/ Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 342 AM CDT Tue Apr 1 2025 ...GALE WARNING IN EFFECT FROM 1 AM TO 6 PM CDT WEDNESDAY... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CDT EARLY THIS MORNING... * WHAT...For the Small Craft Advisory, southeast winds to 30 kt. For the Gale Warning, southeast gales to 35 kt becoming southwest Wednesday afternoon expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...For the Small Craft Advisory, from 7 PM this evening to 1 AM CDT Wednesday. For the Gale Warning, from 1 AM to 6 PM CDT Wednesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LMZ740>742-011645- /O.UPG.KLOT.GL.A.0011.250402T0300Z-250402T1500Z/ /O.NEW.KLOT.GL.W.0013.250402T0600Z-250402T2300Z/ /O.NEW.KLOT.SC.Y.0041.250402T0000Z-250402T0600Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 342 AM CDT Tue Apr 1 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 AM CDT WEDNESDAY... ...GALE WARNING IN EFFECT FROM 1 AM TO 6 PM CDT WEDNESDAY... * WHAT...For the Small Craft Advisory, southeast winds to 30 kt and significant waves to 6 ft occasionally to 8 ft expected. For the Gale Warning, southeast gales to 35 kt becoming southwest Wednesday afternoon and significant waves to 10 ft occasionally to 13 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Small Craft Advisory, from 7 PM this evening to 1 AM CDT Wednesday. For the Gale Warning, from 1 AM to 6 PM CDT Wednesday. * 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. && $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||