491 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. && $$ LMZ541>543-190815- /O.NEW.KGRB.MF.Y.0007.260519T0010Z-260519T1700Z/ /O.EXT.KGRB.SC.Y.0053.260519T0600Z-260520T0000Z/ Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 710 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CDT TUESDAY... ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 AM TO 7 PM CDT TUESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than 1 NM. For the Small Craft Advisory, southwest winds 10 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft expected. * WHERE...Lake Michigan nearshore waters from Washington Island to Sheboygan. * WHEN...For the Dense Fog Advisory, until noon CDT Tuesday. For the Small Craft Advisory, from 1 AM to 7 PM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$  492 WHCA72 TJSJ 190028 MWWSJU URGENT - MARINE WEATHER MESSAGE National Weather Service San Juan PR 828 PM AST Mon May 18 2026 AMZ711-190830- /O.CON.TJSJ.SC.Y.0018.000000T0000Z-260519T2200Z/ Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 828 PM AST Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM AST TUESDAY... * WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 5 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...Until 6 PM AST 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. && $$  384 WHUS73 KMKX 190044 MWWMKX URGENT - MARINE WEATHER MESSAGE National Weather Service Milwaukee/Sullivan WI 744 PM CDT Mon May 18 2026 LMZ643-190845- /O.CAN.KMKX.SC.Y.0054.000000T0000Z-260520T0000Z/ /O.NEW.KMKX.SC.Y.0055.260519T0900Z-260519T2100Z/ Sheboygan to Port Washington WI- 744 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 4 PM CDT TUESDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt expected. Winds veer west to northwest in the afternoon. * WHERE...Nearshore Waters from Sheboygan to Port Washington. * WHEN...From 4 AM to 4 PM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ LMZ261-362-364-366-563-565-567-868-190845- /O.CON.KMKX.MF.Y.0006.000000T0000Z-260519T1700Z/ Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to mid lake- Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake- 744 PM CDT Mon May 18 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TUESDAY... * WHAT...Dense fog will reduce visibility to less than 1 NM. * WHERE...Northern Open Waters of Lake Michigan. * WHEN...Until noon CDT Tuesday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ LMZ644>646-190845- /O.CON.KMKX.SC.Y.0054.260519T0900Z-260519T2100Z/ Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 744 PM CDT Mon May 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM CDT TUESDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt expected. Winds veer west to northwest in the afternoon. * WHERE...Nearshore Waters from Port Washington to Winthrop Harbor IL. * WHEN...From 4 AM to 4 PM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$