511 FZUS71 KLWX 170819 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 419 AM EDT Wed Jun 17 2026 ANZ534-536-537-170915- 419 AM EDT Wed Jun 17 2026 ...A STRONG THUNDERSTORM OVER THE LOWER TIDAL POTOMAC WATERS... The areas affected include... Chesapeake Bay from Drum Point MD to Smith Point VA... Tidal Potomac from Cobb Island MD to Smith Point VA... Tidal Potomac from Indian Head to Cobb Island MD... At 418 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Nomini Bay, moving east at 30 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 3815 7661 3817 7676 3816 7684 3818 7687 3824 7663 3823 7658 3815 7652 3813 7646 3814 7636 3825 7642 3829 7640 3832 7627 3813 7621 3811 7660 $$ KLW