637 FZUS71 KPHI 122210 MWSPHI Marine Weather Statement National Weather Service Mount Holly NJ 610 PM EDT Fri Jun 12 2026 ANZ451-122220- /O.CAN.KPHI.MA.W.0049.000000T0000Z-260612T2300Z/ 610 PM EDT Fri Jun 12 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm... The thunderstorm has weakened and no longer poses a significant threat to boaters. LAT...LON 3973 7377 3953 7385 3953 7386 3966 7426 3980 7422 TIME...MOT...LOC 2210Z 286DEG 16KT 3977 7423 $$ Hoeflich 897 FZUS71 KLWX 122225 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 625 PM EDT Fri Jun 12 2026 ANZ535-536-130030- 625 PM EDT Fri Jun 12 2026 ...STRONG THUNDERSTORMS APPROACHING THE WATERS... The areas affected include... Tidal Potomac from Indian Head to Cobb Island MD... Tidal Potomac from Key Bridge to Indian Head MD... At 625 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from 36 nm west of Key Bridge to 37 nm northwest of Leesylvania State Park, moving southeast at 25 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && LAT...LON 3867 7724 3866 7722 3866 7719 3864 7720 3865 7716 3870 7720 3873 7706 3890 7708 3891 7705 3885 7700 3873 7700 3869 7702 3867 7708 3862 7709 3854 7720 3858 7729 $$ LFR 088 FZUS71 KLWX 122227 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 627 PM EDT Fri Jun 12 2026 ANZ533-534-541-122237- /O.CAN.KLWX.MA.W.0078.000000T0000Z-260612T2300Z/ 627 PM EDT Fri Jun 12 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Chesapeake Bay from Drum Point MD to Smith Point VA... Chesapeake Bay from North Beach to Drum Point MD... Choptank River to Cambridge MD and the Little Choptank River... The thunderstorm has weakened and no longer poses a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 900 PM EDT for southern Maryland...and the adjacent coastal waters. && LAT...LON 3832 7642 3839 7638 3851 7650 3855 7644 3849 7633 3847 7633 3841 7628 3837 7628 3837 7626 3836 7625 3835 7627 TIME...MOT...LOC 2224Z 287DEG 39KT 3838 7607 $$ LFR 404 FZUS71 KLWX 122228 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 628 PM EDT Fri Jun 12 2026 ANZ533-534-543-122238- /O.CAN.KLWX.MA.W.0080.000000T0000Z-260613T0000Z/ 628 PM EDT Fri Jun 12 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Chesapeake Bay from Drum Point MD to Smith Point VA... Chesapeake Bay from North Beach to Drum Point MD... Tangier Sound and the inland waters surrounding Bloodsworth Island... The thunderstorm has weakened and no longer poses a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 900 PM EDT for southern Maryland...and the adjacent coastal waters. && LAT...LON 3790 7625 3834 7646 3831 7622 3840 7623 3840 7622 3822 7603 3837 7601 3836 7601 3823 7597 3836 7586 3835 7586 3814 7596 3814 7579 3806 7587 3807 7580 3807 7579 3808 7578 3790 7591 TIME...MOT...LOC 2226Z 316DEG 15KT 3838 7637 $$ LFR 909 FZUS71 KLWX 122239 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 639 PM EDT Fri Jun 12 2026 ANZ536-537-122249- /O.CAN.KLWX.MA.W.0079.000000T0000Z-260612T2330Z/ 639 PM EDT Fri Jun 12 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Tidal Potomac from Cobb Island MD to Smith Point VA... Tidal Potomac from Indian Head to Cobb Island MD... The thunderstorm has weakened and no longer poses a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 900 PM EDT for southern Maryland...central and northern Virginia...and the adjacent coastal waters. && LAT...LON 3854 7730 3853 7722 3851 7724 3839 7723 3846 7701 3835 7696 3827 7684 3824 7667 3816 7670 3816 7684 3821 7694 3826 7696 3830 7703 3838 7706 3833 7717 3833 7729 3842 7733 TIME...MOT...LOC 2236Z 290DEG 24KT 3843 7719 $$ LFR 818 FZUS71 KLWX 122257 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 657 PM EDT Fri Jun 12 2026 ANZ535-130030- /O.CON.KLWX.MA.W.0081.000000T0000Z-260613T0030Z/ 657 PM EDT Fri Jun 12 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 830 PM EDT... For the following areas... Tidal Potomac from Key Bridge to Indian Head MD... At 656 PM EDT, a severe thunderstorm was located 17 nm west of Key Bridge, moving east at 35 knots. The gust to 58 knots at 653 PM was reported at Dulles International Airport. HAZARD...Wind gusts in excess of 48 knots. SOURCE...Radar indicated. IMPACT...Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds. Locations impacted include... Fort Washington, Tidal Basin, Reagan National Airport, Gunston Hall, Mason Neck State Park, Woodrow Wilson Bridge, Indian Head, Fort Hunt, National Harbor, and Alexandria. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3867 7724 3865 7716 3870 7720 3873 7706 3891 7705 3885 7700 3870 7700 3867 7708 3863 7710 3863 7715 3862 7712 3857 7717 3858 7717 3862 7718 3865 7722 3860 7725 3861 7725 3862 7727 3863 7727 TIME...MOT...LOC 2256Z 285DEG 34KT 3894 7744 HAIL...0.00IN WIND...48KTS $$ LFR