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Home Return to list Gale Watch 0005 Issued by the Chicago Forecast Office
Action: New Issued At: 2026-02-21 03:39:34 585 WHUS73 KLOT 210939 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 339 AM CST Sat Feb 21 2026 LMZ745-211745- /O.EXP.KLOT.SC.Y.0021.000000T0000Z-260221T1000Z/ /O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/ /O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/ Burns Harbor to Michigan City IN- 339 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SUNDAY... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 10 ft occasionally to 13 ft expected. For the Gale Watch, northwest gales to 35 kt and significant waves to 14 ft occasionally to 18 ft possible. * WHERE...Burns Harbor to Michigan City IN. * WHEN...For the Small Craft Advisory, from midnight tonight to noon CST Sunday. For the Gale Watch, from Sunday afternoon through Monday afternoon. * 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. && $$ LMZ744-211745- /O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/ /O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/ Gary to Burns Harbor IN- 339 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SUNDAY... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 8 ft occasionally to 10 ft expected. For the Gale Watch, northwest gales to 35 kt and significant waves to 14 ft occasionally to 18 ft possible. * WHERE...Gary to Burns Harbor IN. * WHEN...For the Small Craft Advisory, from midnight tonight to noon CST Sunday. For the Gale Watch, from Sunday afternoon through Monday afternoon. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ740>743-211745- /O.NEW.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 339 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST TUESDAY... * WHAT...Northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...From 3 AM Sunday to 3 AM CST 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. && $$ Action: New Issued At: 2026-02-21 03:39:34 585 WHUS73 KLOT 210939 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 339 AM CST Sat Feb 21 2026 LMZ745-211745- /O.EXP.KLOT.SC.Y.0021.000000T0000Z-260221T1000Z/ /O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/ /O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/ Burns Harbor to Michigan City IN- 339 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SUNDAY... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 10 ft occasionally to 13 ft expected. For the Gale Watch, northwest gales to 35 kt and significant waves to 14 ft occasionally to 18 ft possible. * WHERE...Burns Harbor to Michigan City IN. * WHEN...For the Small Craft Advisory, from midnight tonight to noon CST Sunday. For the Gale Watch, from Sunday afternoon through Monday afternoon. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ744-211745- /O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/ /O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/ Gary to Burns Harbor IN- 339 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SUNDAY... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 8 ft occasionally to 10 ft expected. For the Gale Watch, northwest gales to 35 kt and significant waves to 14 ft occasionally to 18 ft possible. * WHERE...Gary to Burns Harbor IN. * WHEN...For the Small Craft Advisory, from midnight tonight to noon CST Sunday. For the Gale Watch, from Sunday afternoon through Monday afternoon. * 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. && $$ LMZ740>743-211745- /O.NEW.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 339 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST TUESDAY... * WHAT...Northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...From 3 AM Sunday to 3 AM CST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-02-21 09:01:44 882 WHUS73 KLOT 211501 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 901 AM CST Sat Feb 21 2026 LMZ744-745-212315- /O.CON.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/ /O.CON.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 901 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SUNDAY... ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 10 ft occasionally to 13 ft expected. For the Gale Watch, northwest winds to 35 kt and significant waves to 14 ft occasionally to 18 ft possible. * WHERE...Gary to Michigan City IN. * WHEN...For the Small Craft Advisory, from midnight tonight to noon CST Sunday. For the Gale Watch, from Sunday afternoon through Monday afternoon. * 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. && $$ LMZ740>743-212315- /O.CON.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 901 AM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST TUESDAY... * WHAT...Northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...From 3 AM Sunday to 3 AM CST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Time Extended Issued At: 2026-02-21 14:42:53 416 WHUS73 KLOT 212042 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 242 PM CST Sat Feb 21 2026 LMZ744-745-220445- /O.EXT.KLOT.SC.Y.0022.260222T0600Z-260223T0000Z/ /O.EXT.KLOT.GL.A.0005.260223T0000Z-260223T2100Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 242 PM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SUNDAY... ...GALE WATCH NOW IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. For the Gale Watch, northwest gales to 35 kt and significant waves to 14 ft occasionally to 18 ft possible. * WHERE...Gary to Michigan City IN. * WHEN...For the Small Craft Advisory, from midnight tonight to 6 PM CST Sunday. For the Gale Watch, from Sunday evening through Monday afternoon. * 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. && $$ LMZ740>743-220445- /O.CON.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 242 PM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST TUESDAY... * WHAT...Northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. Occasional 35 kt gales are possible Sunday night. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...From 3 AM Sunday to 3 AM CST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-02-21 21:55:05 979 WHUS73 KLOT 220354 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 954 PM CST Sat Feb 21 2026 LMZ744-745-221200- /O.CON.KLOT.SC.Y.0022.260222T0600Z-260223T0000Z/ /O.CON.KLOT.GL.A.0005.260223T0000Z-260223T2100Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 954 PM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST SUNDAY... ...GALE WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY AFTERNOON... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. For the Gale Watch, northwest gales to 35 kt and significant waves to 14 ft occasionally to 18 ft possible. * WHERE...Gary to Michigan City IN. * WHEN...For the Small Craft Advisory, until 6 PM CST Sunday. For the Gale Watch, from Sunday evening through Monday afternoon. * 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. && $$ LMZ740>743-221200- /O.CON.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 954 PM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST TUESDAY... * WHAT...Northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. Occasional 35 kt gales are possible Sunday night. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...From 3 AM Sunday to 3 AM CST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Upgraded Issued At: 2026-02-22 03:24:13 986 WHUS73 KLOT 220923 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 323 AM CST Sun Feb 22 2026 LMZ744-745-221730- /O.CON.KLOT.SC.Y.0022.000000T0000Z-260223T0000Z/ /O.UPG.KLOT.GL.A.0005.260223T0000Z-260223T2100Z/ /O.NEW.KLOT.GL.W.0010.260223T0000Z-260223T2100Z/ Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 323 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... ...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 3 PM CST MONDAY... * WHAT...For the Small Craft Advisory, northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft. For the Gale Warning, northwest winds to 35 kt and significant waves to 14 ft occasionally to 18 ft expected. * WHERE...Gary to Michigan City IN. * WHEN...For the Small Craft Advisory, until 6 PM CST this evening. For the Gale Warning, from 6 PM this evening to 3 PM CST Monday. * 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. && $$ LMZ740>743-221730- /O.CON.KLOT.SC.Y.0022.000000T0000Z-260224T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 323 AM CST Sun Feb 22 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST TUESDAY... * WHAT...Northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...Until 3 AM CST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||