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Home Return to list Small Craft Advisory 0074 Issued by the Chicago Forecast Office
Action: New Issued At: 2025-07-29 15:07:25 457 WHUS73 KLOT 292007 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 307 PM CDT Tue Jul 29 2025 LMZ740>745-300415- /O.NEW.KLOT.SC.Y.0074.250730T1800Z-250801T1400Z/ 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- 307 PM CDT Tue Jul 29 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM WEDNESDAY TO 9 AM CDT FRIDAY... * WHAT...Northeast winds to 30 kt and significant waves to 8 ft occasionally to 10 ft expected. Occasional gale gusts to 35 kt possible Wednesday night. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 PM Wednesday to 9 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-07-29 21:49:37 739 WHUS73 KLOT 300249 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 949 PM CDT Tue Jul 29 2025 LMZ740>745-301200- /O.CON.KLOT.SC.Y.0074.250730T1800Z-250801T1400Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 949 PM CDT Tue Jul 29 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM WEDNESDAY TO 9 AM CDT FRIDAY... * WHAT...Northeast winds to 30 kt and significant waves to 8 ft occasionally to 10 ft expected. Occasional gale gusts to 35 kt possible Wednesday night. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 PM Wednesday to 9 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-07-30 04:21:04 056 WHUS73 KLOT 300920 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 420 AM CDT Wed Jul 30 2025 LMZ740>745-301730- /O.CON.KLOT.SC.Y.0074.250730T1800Z-250801T1400Z/ 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- 420 AM CDT Wed Jul 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 AM CDT FRIDAY... * WHAT...Northeast winds to 30 kt and significant waves to 9 ft occasionally to 12 ft expected. Occasional gale gusts to 35 kt possible tonight. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 PM Wednesday to 9 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-07-30 09:43:17 494 WHUS73 KLOT 301442 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 942 AM CDT Wed Jul 30 2025 LMZ740>745-302245- /O.CON.KLOT.SC.Y.0074.250730T1800Z-250801T1400Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 942 AM CDT Wed Jul 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 AM CDT FRIDAY... * WHAT...Northeast winds to 30 kt with a few gale force gusts to 35 kt and significant waves to 7 ft occasionally to 9 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 PM this afternoon to 9 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-07-30 14:46:42 846 WHUS73 KLOT 301946 MWWLOT URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 246 PM CDT Wed Jul 30 2025 LMZ740>745-310400- /O.CON.KLOT.SC.Y.0074.000000T0000Z-250801T1400Z/ 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- 246 PM CDT Wed Jul 30 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT FRIDAY... * WHAT...Northeast winds to 30 kt with a few gale force gusts to 35 kt 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 9 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||