676 FZUS71 KLWX 230521 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 121 AM EDT Thu Jul 23 2026 ANZ535-536-538-230800- Tidal Potomac from Key Bridge to Indian Head MD- Tidal Potomac from Indian Head to Cobb Island MD- Patapsco River including Baltimore Harbor- 121 AM EDT Thu Jul 23 2026 ...OCCASIONALLY GUSTY WINDS... Northerly winds may occasionally gust to 20 knots on the Potomac and Patapsco Rivers until 3 to 4 AM this morning. Mariners, especially those in small craft, should exercise caution and be prepared for locally higher winds and waves. $$