706 FZUS71 KLWX 190952 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 552 AM EDT Wed Mar 19 2025 ANZ530>543-191800- Chesapeake Bay north of Pooles Island MD- Chesapeake Bay from Pooles Island to Sandy Point MD- Chesapeake Bay from Sandy Point to North Beach MD- Chesapeake Bay from North Beach to Drum Point MD- Chesapeake Bay from Drum Point MD to Smith Point VA- Tidal Potomac from Key Bridge to Indian Head MD- Tidal Potomac from Indian Head to Cobb Island MD- Tidal Potomac from Cobb Island MD to Smith Point VA- Patapsco River including Baltimore Harbor- Chester River to Queenstown MD-Eastern Bay- Choptank River to Cambridge MD and the Little Choptank River- Patuxent River to Broomes Island MD- Tangier Sound and the inland waters surrounding Bloodsworth Island- 552 AM EDT Wed Mar 19 2025 ...OCCASIONAL WIND GUSTS AROUND 20 KNOTS THIS AFTERNOON AND EVENING... South to southeast winds will occasionally gust around 20 knots from late this afternoon into this evening. This is most likely to occur in the middle Chesapeake Bay and lower tidal Potomac River. Inexperienced mariners, especially those operating smaller vessels, should exercise extra caution if navigating the waters during that time. $$  364 FZUS73 KMKX 191613 MWSMKX Marine Weather Statement National Weather Service Milwaukee/Sullivan WI 1113 AM CDT Wed Mar 19 2025 LMZ645-646-673-675-191700- 1113 AM CDT Wed Mar 19 2025 ...A STRONG THUNDERSTORM APPROACHING THE WATERS... The areas affected include... Lake Michigan nearshore and open waters to mid lake from North Point Light WI to Winthrop Harbor IL... At 1111 AM CDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots and small hail. This thunderstorm was located 9 nm west of Pleasant Prairie, moving northeast at 55 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 4265 8782 4267 8781 4267 8779 4273 8776 4276 8777 4278 8775 4281 8778 4301 8753 4283 8726 4256 8781 4259 8781 4261 8782 $$ HEEREN  812 FZUS71 KLWX 192012 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 412 PM EDT Wed Mar 19 2025 ANZ530>543-200400- Chesapeake Bay north of Pooles Island MD- Chesapeake Bay from Pooles Island to Sandy Point MD- Chesapeake Bay from Sandy Point to North Beach MD- Chesapeake Bay from North Beach to Drum Point MD- Chesapeake Bay from Drum Point MD to Smith Point VA- Tidal Potomac from Key Bridge to Indian Head MD- Tidal Potomac from Indian Head to Cobb Island MD- Tidal Potomac from Cobb Island MD to Smith Point VA- Patapsco River including Baltimore Harbor- Chester River to Queenstown MD-Eastern Bay- Choptank River to Cambridge MD and the Little Choptank River- Patuxent River to Broomes Island MD- Tangier Sound and the inland waters surrounding Bloodsworth Island- 412 PM EDT Wed Mar 19 2025 ...OCCASIONAL WIND GUSTS AROUND 20 KNOTS THIS EVENING... South to southeast winds will occasionally gust around 20 knots this evening. This is most likely to occur in the middle Chesapeake Bay and lower tidal Potomac River. Inexperienced mariners, especially those operating smaller vessels, should exercise extra caution if navigating the waters during this time. $$ DHOF  579 FZUS73 KLOT 192215 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 515 PM CDT Wed Mar 19 2025 LMZ740>745-777-779-200000- /O.CON.KLOT.MA.W.0004.000000T0000Z-250320T0000Z/ 515 PM CDT Wed Mar 19 2025 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 700 PM CDT... For the following areas... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 514 PM CDT, severe thunderstorms were located along a line extending from near Elgin to 10 nm southwest of Ohare Airport to 9 nm northeast of Joliet to 28 nm southwest of Hammond Marina, moving east at 35 knots. HAZARD...Wind gusts to nearly 50 knots and large hail. SOURCE...Radar and surface observations indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. Locations impacted include... Harrison-Dever Crib, Burnham Harbor, Hammond Marina, Wilmette Harbor, Jackson Park Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Belmont Harbor, Calumet Harbor, Marina Shores at Dune Harbor, and 59th Street Marina. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747 4170 8751 4183 8760 4189 8762 4189 8760 4190 8762 4206 8767 4227 8783 4248 8780 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 2214Z 262DEG 37KT 4212 8833 4186 8807 4164 8797 4131 8787 HAIL...>.75IN WIND...49KTS $$ Carlaw  326 FZUS73 KLOT 192259 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 559 PM CDT Wed Mar 19 2025 LMZ740>745-777-779-200000- /O.CON.KLOT.MA.W.0004.000000T0000Z-250320T0000Z/ 559 PM CDT Wed Mar 19 2025 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 700 PM CDT... For the following areas... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 559 PM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 9 nm southeast of Waukegan Harbor to 10 nm northeast of Harrison-Dever Crib to 10 nm northeast of Indiana Harbor to near Marina Shores at Dune Harbor, moving northeast at 50 knots. These storms have a history of producing wind damage across parts of northeast Illinois and northwest Indiana. HAZARD...Waterspouts, wind gusts to nearly 50 knots, and large hail. SOURCE...Buoy. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. Locations impacted include... Harrison-Dever Crib, Burnham Harbor, Hammond Marina, Wilmette Harbor, Jackson Park Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Belmont Harbor, Calumet Harbor, Marina Shores at Dune Harbor, and 59th Street Marina. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747 4170 8751 4183 8760 4189 8762 4189 8760 4190 8762 4206 8767 4227 8783 4248 8780 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 2259Z 242DEG 52KT 4226 8767 4202 8739 4181 8729 4155 8718 WATERSPOUT...POSSIBLE HAIL...>.75IN WIND...49KTS $$ Carlaw  708 FZUS73 KLOT 192328 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 628 PM CDT Wed Mar 19 2025 LMZ740>745-192337- /O.CAN.KLOT.MA.W.0004.000000T0000Z-250320T0000Z/ 628 PM CDT Wed Mar 19 2025 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. && LAT...LON 4188 8697 4209 8717 4247 8760 4247 8759 4246 8702 4213 8696 TIME...MOT...LOC 2327Z 240DEG 43KT 4239 8735 4215 8708 4193 8686 $$ LMZ777-779-200000- /O.CON.KLOT.MA.W.0004.000000T0000Z-250320T0000Z/ 628 PM CDT Wed Mar 19 2025 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 700 PM CDT... For the following areas... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 627 PM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 20 nm east of Winthrop Harbor to 25 nm west of St. Joseph Light to 9 nm northwest of New Buffalo, moving northeast at 45 knots. HAZARD...Waterspouts, wind gusts to 40 knots, and small hail. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Severe thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4188 8697 4209 8717 4247 8760 4247 8759 4246 8702 4213 8696 TIME...MOT...LOC 2327Z 240DEG 43KT 4239 8735 4215 8708 4193 8686 WATERSPOUT...POSSIBLE HAIL...<.75IN WIND...40KTS $$ Petr  543 FZUS73 KGRR 192350 MWSGRR Marine Weather Statement National Weather Service Grand Rapids MI Issued by National Weather Service Detroit/Pontiac MI 750 PM EDT Wed Mar 19 2025 LMZ844-845-876-878-200045- /O.CON.KGRR.MA.W.0001.000000T0000Z-250320T0045Z/ 750 PM EDT Wed Mar 19 2025 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 845 PM EDT... For the following areas... Nearshore and Open Waters from St Joseph to Holland MI... At 750 PM EDT, strong thunderstorms were located along a line extending from 31 nm east of Winthrop Harbor to 15 nm northwest of St. Joseph Light to near St. Joseph, moving east at 45 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... South Haven Light, Saugatuck Pier Heads, St. Joseph Light, and St. Joseph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4213 8657 4213 8696 4277 8706 4276 8621 4269 8621 4244 8626 4225 8636 4211 8649 TIME...MOT...LOC 2350Z 251DEG 44KT 4245 8708 4222 8680 4199 8653 HAIL...0.00IN WIND...40KTS $$ sf  751 FZUS73 KLOT 192354 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 654 PM CDT Wed Mar 19 2025 LMZ777-779-200004- /O.EXP.KLOT.MA.W.0004.000000T0000Z-250320T0000Z/ 654 PM CDT Wed Mar 19 2025 ...THE SPECIAL MARINE WARNING WILL EXPIRE AT 700 PM CDT... The affected areas were... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... The thunderstorms have weakened and no longer pose a significant threat to boaters. && LAT...LON 4188 8697 4209 8717 4247 8760 4247 8759 4246 8702 4213 8696 TIME...MOT...LOC 2354Z 263DEG 37KT 4242 8700 4218 8673 4196 8651 $$ Petr