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Home Return to list Small Craft Advisory 0053 Issued by the Green Bay Forecast Office
Action: New Issued At: 2026-05-18 03:46:03 488 WHUS73 KGRB 180845 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 345 AM CDT Mon May 18 2026 LMZ521-522-181645- /O.CAN.KGRB.SC.Y.0052.000000T0000Z-260519T0000Z/ /O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/ /O.NEW.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 345 AM CDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, west winds 15 to 20 kts with gusts up to 25 kts and waves 2 to 4 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until 9 AM CDT this morning. For the Small Craft Advisory, from 10 AM to 7 PM 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. && $$ LMZ543-181645- /O.CAN.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/ /O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/ Two Rivers to Sheboygan WI- 345 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT WEDNESDAY... ...DENSE FOG ADVISORY IS CANCELLED... * WHAT...South winds 10 to 20 kts with gusts to 25 kts veering west on Tuesday. Waves 3 to 5 ft increasing to 4 to 7 ft late tonight into Tuesday. * WHERE...Lake Michigan nearshore waters from Two Rivers to Sheboygan. * WHEN...Until 1 AM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ541-542-181645- /O.CON.KGRB.MF.Y.0006.000000T0000Z-260518T1400Z/ /O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI- 345 AM CDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT WEDNESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, south winds 10 to 20 kts with gusts to 25 kts veering west on Tuesday. Waves 3 to 5 ft increasing to 4 to 7 ft late tonight into Tuesday. * WHERE...Lake Michigan nearshore waters from Washington Island to Two Rivers. * WHEN...For the Dense Fog Advisory, until 9 AM CDT this morning. For the Small Craft Advisory, until 1 AM CDT Wednesday. * 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. && $$ Kieckbusch Action: Continued Issued At: 2026-05-18 11:19:02 032 WHUS73 KGRB 181618 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 1118 AM CDT Mon May 18 2026 LMZ541>543-190030- /O.CON.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1118 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT WEDNESDAY... * WHAT...South winds 10 to 20 kts with gusts to 25 kts veering west on Tuesday. Waves 3 to 5 ft increasing to 4 to 6 ft late tonight into Tuesday. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...Until 1 AM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ521-522-190030- /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 1118 AM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt shifting northwest Tuesday afternoon. Waves 1 to 3 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...From 10 AM to 7 PM 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. && $$ JLA Action: Time and Area Extended Issued At: 2026-05-18 14:59:38 659 WHUS73 KGRB 181958 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 258 PM CDT Mon May 18 2026 LMZ541>543-190400- /O.CAN.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/ /O.EXB.KGRB.SC.Y.0053.260519T0600Z-260520T0600Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 258 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TUESDAY TO 1 AM CDT WEDNESDAY... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt, veering northwest Tuesday afternoon. Waves 3 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...From 1 AM Tuesday to 1 AM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Patchy fog may be dense at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ521-522-190400- /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 258 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...From 10 AM to 7 PM 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. && $$ JLA Action: Continued Issued At: 2026-05-18 14:59:38 659 WHUS73 KGRB 181958 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 258 PM CDT Mon May 18 2026 LMZ541>543-190400- /O.CAN.KGRB.SC.Y.0052.000000T0000Z-260520T0600Z/ /O.EXB.KGRB.SC.Y.0053.260519T0600Z-260520T0600Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 258 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TUESDAY TO 1 AM CDT WEDNESDAY... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt, veering northwest Tuesday afternoon. Waves 3 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...From 1 AM Tuesday to 1 AM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Patchy fog may be dense at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ521-522-190400- /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 258 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...From 10 AM to 7 PM 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. && $$ JLA Action: Continued Issued At: 2026-05-18 19:11:02 792 WHUS73 KGRB 190010 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 710 PM CDT Mon May 18 2026 LMZ521-522-190815- /O.NEW.KGRB.MF.Y.0007.260519T0010Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 710 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, from 10 AM to 7 PM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-190815- /O.NEW.KGRB.MF.Y.0007.260519T0010Z-260519T1700Z/ /O.EXT.KGRB.SC.Y.0053.260519T0600Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 710 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, from 1 AM to 7 PM 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. && $$ Action: Time Extended Issued At: 2026-05-18 19:11:02 792 WHUS73 KGRB 190010 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 710 PM CDT Mon May 18 2026 LMZ521-522-190815- /O.NEW.KGRB.MF.Y.0007.260519T0010Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 710 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, from 10 AM to 7 PM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-190815- /O.NEW.KGRB.MF.Y.0007.260519T0010Z-260519T1700Z/ /O.EXT.KGRB.SC.Y.0053.260519T0600Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 710 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, from 1 AM to 7 PM 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. && $$ Action: Continued Issued At: 2026-05-18 23:25:41 748 WHUS73 KGRB 190425 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 1125 PM CDT Mon May 18 2026 LMZ521-522-191230- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 1125 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, from 10 AM to 7 PM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-191230- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T0600Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1125 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, until 7 PM 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. && $$ Action: Continued Issued At: 2026-05-18 23:25:41 748 WHUS73 KGRB 190425 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 1125 PM CDT Mon May 18 2026 LMZ521-522-191230- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 1125 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, from 10 AM to 7 PM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-191230- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T0600Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1125 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, until 7 PM 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. && $$ Action: Continued Issued At: 2026-05-19 02:34:45 410 WHUS73 KGRB 190734 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 234 AM CDT Tue May 19 2026 LMZ521-522-191545- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 234 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 20 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, from 10 AM this morning to 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-191545- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 234 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, until 7 PM CDT this evening. * 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. && $$ Action: Continued Issued At: 2026-05-19 02:34:45 410 WHUS73 KGRB 190734 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 234 AM CDT Tue May 19 2026 LMZ521-522-191545- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 234 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, west winds 10 to 15 kt with gusts up to 20 kt and waves 1 to 2 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, from 10 AM this morning to 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-191545- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 234 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, until 7 PM CDT this evening. * 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. && $$ Action: Continued Issued At: 2026-05-19 09:31:17 354 WHUS73 KGRB 191430 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 930 AM CDT Tue May 19 2026 LMZ521-522-191700- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 930 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, locally dense fog will reduce visibility to 1 NM. For the Small Craft Advisory, west winds 10 to 15 kts with gusts up to 20 kts and waves 1 to 3 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, until 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-191700- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 930 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, locally dense fog will reduce visibility to 1 NM. For the Small Craft Advisory, southwest winds 10 to 15 kts with gusts up to 25 kts and waves 3 to 6 ft. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, until 7 PM CDT this evening. * 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. && $$ Action: Continued Issued At: 2026-05-19 09:31:17 354 WHUS73 KGRB 191430 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 930 AM CDT Tue May 19 2026 LMZ521-522-191700- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.260519T1500Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 930 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, locally dense fog will reduce visibility to 1 NM. For the Small Craft Advisory, west winds 10 to 15 kts with gusts up to 20 kts and waves 1 to 3 ft expected. * WHERE...Central and Southern Bay of Green Bay. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, until 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ LMZ541>543-191700- /O.CON.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 930 AM CDT Tue May 19 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, locally dense fog will reduce visibility to 1 NM. For the Small Craft Advisory, southwest winds 10 to 15 kts with gusts up to 25 kts and waves 3 to 6 ft. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT today. For the Small Craft Advisory, until 7 PM CDT this evening. * 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. && $$ Action: Continued Issued At: 2026-05-19 11:50:52 673 WHUS73 KGRB 191650 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 1150 AM CDT Tue May 19 2026 LMZ521-522-200000- /O.EXP.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 1150 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON CDT TODAY... * WHAT...West winds 10 to 15 kts with gusts up to 25 kts and waves 1 to 2 ft. * WHERE...Central and Southern Bay of Green Bay. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ541>543-200000- /O.EXP.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1150 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON CDT TODAY... * WHAT...West winds 10 to 15 kts with gusts up to 25 kts and waves 3 to 6 ft. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-05-19 11:50:52 673 WHUS73 KGRB 191650 MWWGRB URGENT - MARINE WEATHER MESSAGE National Weather Service Green Bay WI 1150 AM CDT Tue May 19 2026 LMZ521-522-200000- /O.EXP.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 1150 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON CDT TODAY... * WHAT...West winds 10 to 15 kts with gusts up to 25 kts and waves 1 to 2 ft. * WHERE...Central and Southern Bay of Green Bay. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ541>543-200000- /O.EXP.KGRB.MF.Y.0007.000000T0000Z-260519T1700Z/ /O.CON.KGRB.SC.Y.0053.000000T0000Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1150 AM CDT Tue May 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON CDT TODAY... * WHAT...West winds 10 to 15 kts with gusts up to 25 kts and waves 3 to 6 ft. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||