365 FZUS71 KLWX 212104 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 504 PM EDT Tue Jul 21 2026 ANZ533-541-212114- /O.CAN.KLWX.MA.W.0159.000000T0000Z-260721T2200Z/ 504 PM EDT Tue Jul 21 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Chesapeake Bay from North Beach to Drum Point MD... Choptank River to Cambridge MD and the Little Choptank River... The thunderstorm has moved out of the warned area and no longer poses a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for central Maryland...and the adjacent coastal waters. && LAT...LON 3900 7617 3897 7625 3904 7631 3885 7638 3884 7637 3886 7633 3895 7631 3890 7630 3894 7627 3892 7625 3896 7625 3891 7620 3890 7621 3885 7627 3880 7652 3898 7649 3902 7641 3913 7645 3915 7628 3903 7624 TIME...MOT...LOC 2104Z 235DEG 35KT 3888 7650 $$ ANZ531-532-539-540-212200- /O.CON.KLWX.MA.W.0159.000000T0000Z-260721T2200Z/ 504 PM EDT Tue Jul 21 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 600 PM EDT... For the following areas... Chesapeake Bay from Pooles Island to Sandy Point MD... Chesapeake Bay from Sandy Point to North Beach MD... Chester River to Queenstown MD... Eastern Bay... At 504 PM EDT, a severe thunderstorm was located over Mayo, moving northeast at 35 knots. HAZARD...Wind gusts in excess of 48 knots and large hail. SOURCE...Radar indicated. IMPACT...Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds and hail. Locations impacted include... Parsons Island, Pinehurst, Chester River, Eastern Bay, Gibson Island, Bodkin Point, Greenbury Point, Love Point, Sandy Point State Park, Highland Beach, Baltimore Light, Severn River, Bloody Point Light, Matapeake, Chesapeake Bay Bridge, Thomas Point Light, Kent Narrows Bridge, Naval Academy, Shady Side, and Mayo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until this storm passes. Wind gusts in excess of 48 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3900 7617 3897 7625 3904 7631 3885 7638 3884 7637 3886 7633 3895 7631 3890 7630 3894 7627 3892 7625 3896 7625 3891 7620 3890 7621 3885 7627 3880 7652 3898 7649 3902 7641 3913 7645 3915 7628 3903 7624 TIME...MOT...LOC 2104Z 235DEG 35KT 3888 7650 HAIL...>.75IN WIND...48KTS $$ CJL 738 FZUS71 KLWX 212107 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 507 PM EDT Tue Jul 21 2026 ANZ537-212117- /O.CAN.KLWX.MA.W.0156.000000T0000Z-260721T2130Z/ 507 PM EDT Tue Jul 21 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Tidal Potomac from Cobb Island MD to Smith Point VA... The thunderstorms have moved out of the area and no longer pose a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for southern Maryland...and the adjacent coastal waters. && LAT...LON 3815 7661 3817 7679 3825 7674 3823 7658 3814 7651 3807 7633 3791 7627 TIME...MOT...LOC 2105Z 245DEG 32KT 3825 7626 3815 7606 3795 7583 $$ CJL 930 FZUS72 KMHX 212111 MWSMHX Marine Weather Statement National Weather Service Newport/Morehead City NC 511 PM EDT Tue Jul 21 2026 AMZ135-136-212121- /O.EXP.KMHX.MA.W.0219.000000T0000Z-260721T2115Z/ 511 PM EDT Tue Jul 21 2026 ...THE SPECIAL MARINE WARNING WILL EXPIRE AT 515 PM EDT... The affected areas were... Pamlico Sound... Pamlico and Pungo Rivers... The thunderstorm has moved out of the area and no longer poses a significant threat to boaters. && LAT...LON 3537 7661 3541 7668 3552 7676 3566 7652 3548 7634 TIME...MOT...LOC 2111Z 234DEG 35KT 3557 7640 $$ RJ 241 FZUS71 KBOX 212111 MWSBOX Marine Weather Statement National Weather Service Boston/Norton MA 511 PM EDT Tue Jul 21 2026 ANZ230-231-250-251-254-280-281-212215- 511 PM EDT Tue Jul 21 2026 ...STRONG THUNDERSTORMS APPROACHING THE WATERS... The areas affected include... Boston Harbor... Cape Cod Bay... Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary... Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM... Massachusetts Bay and Ipswich Bay... Ocean Waters from Provincetown to Nantucket from 20 to 60 NM... Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM... At 511 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from near Quincy to near Barnstable, moving northeast at 45 knots. Locations impacted include... Eastern Point Ma, The Coastal Waters East Of Cape Ann, Boston Light, Mass Bay Buoy 44029, Stellwagen Bank, Broad Sound, The Coastal Waters East Of Boston Harbor, Cape Cod Bay, Minot Light, Barnstable Harbor, Ocean Bluff-Brant Rock, Green Harbor, Manomet Point, Boston Harbor, The East End Of Cape Cod Canal, Boston Buoy 44013, Ipswich Bay, Race Point, Thatcher Island, and Plymouth Light. PRECAUTIONARY/PREPAREDNESS ACTIONS... Expect gusty winds to around 30 knots...briefly rough seas and lightning strikes. Consider heading for safe harbor until these storms pass. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible and keep away from ungrounded metal objects. && LAT...LON 4232 6938 4189 6995 4204 7005 4208 7023 4201 7008 4180 7000 4171 7033 4172 7035 4174 7031 4174 7029 4180 7053 4225 7076 4225 7088 4236 7103 4264 7059 4265 7059 4269 7063 4262 7069 4265 7075 4280 7060 $$ BW 032 FZUS74 KLIX 212117 MWSLIX Marine Weather Statement National Weather Service New Orleans LA 417 PM CDT Tue Jul 21 2026 GMZ551-570-212200- /O.CON.KLIX.MA.W.0286.000000T0000Z-260721T2200Z/ 417 PM CDT Tue Jul 21 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 500 PM CDT... For the following areas... Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm... Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM... At 417 PM CDT, a severe thunderstorm capable of producing waterspouts was located 11 nm east of Eugene Island 100, or 13 nm south of Point Au Fer Island, moving southwest at 15 knots. HAZARD...Waterspouts and wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can quickly form and capsize boats...damage vessels and oil rigs...and create suddenly higher waves. Small craft could be damaged in briefly higher winds and suddenly higher waves. The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds will be dangerous for boaters or anyone near the water. Boaters should avoid waterspouts and never try to navigate near them. Make sure all on board are wearing life jackets. Seek shelter or move to safe harbor until hazardous weather passes. && LAT...LON 2917 9126 2904 9107 2878 9123 2879 9126 TIME...MOT...LOC 2117Z 027DEG 14KT 2908 9124 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...40KTS $$ Zeringue 476 FZUS74 KLIX 212124 MWSLIX Marine Weather Statement National Weather Service New Orleans LA 424 PM CDT Tue Jul 21 2026 GMZ535-541-543-551-553-570-572-212230- 424 PM CDT Tue Jul 21 2026 ...A CLUSTER OF STRONG THUNDERSTORMS OVER THE WATERS... The areas affected include... Barataria Bay... Breton Sound... Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm... Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM... Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM... Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM... Terrebonne Bay... At 424 PM CDT, Doppler radar indicated a cluster of strong thunderstorms, capable of producing winds to around 30 knots and weak waterspouts. This cluster of thunderstorms is generally located along a line extending from 17 nm south of Empire to near Timbalier Island, moving south at 20 knots. Mariners can expect widespread gusty winds to around 30 knots, higher waves and dangerous lightning strikes. Boaters should seek safe harbor immediately until this activity passes. Brief, weak waterspouts are possible with this activity. Remain on alert in case warnings are issued for waterspout development. && LAT...LON 2921 9075 2933 9063 2940 9049 2935 9039 2937 9034 2931 9031 2925 9021 2919 9022 2914 9019 2925 9015 2935 9019 2939 9017 2946 9028 2949 9027 2955 9000 2949 8981 2951 8971 2949 8954 2817 8929 2825 9104 $$ Zeringue 197 FZUS71 KOKX 212147 MWSOKX Marine Weather Statement National Weather Service New York NY 547 PM EDT Tue Jul 21 2026 ANZ331-212230- 547 PM EDT Tue Jul 21 2026 A Marine Weather Statement has been issued for the following areas... Long Island Sound East of New Haven CT / Port Jefferson NY to the Mouth of the Connecticut River... At 547 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located over Herod Point, moving east at 25 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 4114 7242 4108 7242 4102 7253 4098 7253 4100 7257 4097 7265 4096 7289 4109 7293 $$ DW 587 FZUS71 KLWX 212147 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 547 PM EDT Tue Jul 21 2026 ANZ531-532-539-540-212157- /O.CAN.KLWX.MA.W.0159.000000T0000Z-260721T2200Z/ 547 PM EDT Tue Jul 21 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Chesapeake Bay from Pooles Island to Sandy Point MD... Chesapeake Bay from Sandy Point to North Beach MD... Chester River to Queenstown MD... Eastern Bay... The thunderstorm has weakened and no longer poses a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for central Maryland...and the adjacent coastal waters. && LAT...LON 3900 7617 3897 7625 3904 7631 3885 7638 3884 7637 3886 7633 3895 7631 3890 7630 3894 7627 3892 7625 3896 7625 3891 7620 3890 7621 3885 7627 3880 7652 3898 7649 3902 7641 3913 7645 3915 7628 3903 7624 TIME...MOT...LOC 2146Z 238DEG 35KT 3910 7604 $$ CJL 587 FZUS71 KCLE 212155 MWSCLE Marine Weather Statement National Weather Service Cleveland OH 555 PM EDT Tue Jul 21 2026 LEZ147>149-166>169-212205- /O.EXP.KCLE.MA.W.0075.000000T0000Z-260721T2200Z/ 555 PM EDT Tue Jul 21 2026 ...THE SPECIAL MARINE WARNING WILL EXPIRE AT 600 PM EDT... The affected areas were... Nearshore waters from Willowick OH to Ripley NY... Open waters from Avon Point OH to Ripley NY... The thunderstorms have moved out of the area and no longer pose a significant threat to boaters. LAT...LON 4222 7976 4193 8050 4173 8121 4201 8166 4221 8124 4242 8001 4240 7985 4228 7974 TIME...MOT...LOC 2155Z 289DEG 43KT 4210 7936 4187 8057 $$ 23