FZUS51 KLWX 151829 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 229 PM EDT Thu Oct 15 2026 Tidal Potomac River and Maryland portion of Chesapeake Bay. Forecasts of wave heights do not include effects of wind direction relative to tidal currents. Expect higher waves when winds are blowing against the tidal flow. Waves flat where waters are iced over. ANZ500-160800- 229 PM EDT Thu Oct 15 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A cold front will stall south of the area tonight before lifting back north Friday morning. A stronger cold front moves across the area Friday evening. Small Craft Advisory conditions may be needed through Sunday morning. $$ ANZ535-160800- Tidal Potomac from Key Bridge to Indian Head- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Showers likely. .TONIGHT...SE winds around 5 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt late. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 30 kt...diminishing to 20 kt after midnight. Waves 1 ft. Showers. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers. .SAT NIGHT...N winds 5 to 10 kt. Gusts up to 25 kt in the evening. Waves 1 ft. .SUN...NE winds around 5 kt. Waves 1 ft or less. .MON...N winds around 5 kt. Waves 1 ft. $$ ANZ536-160800- Tidal Potomac from Indian Head to Cobb Island- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Showers likely. .TONIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A chance of showers. .SAT NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...N winds around 5 kt. Waves 1 ft. $$ ANZ537-160800- Tidal Potomac from Cobb Island to Smith Point- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... .THIS AFTERNOON...NE winds 10 kt. Waves 1 to 2 ft. Showers likely. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt in the late morning and afternoon. Waves 1 to 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...SW winds 15 to 20 kt...becoming NW after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 4 ft...subsiding to 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ530-160800- Chesapeake Bay north of Pooles Island- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft. A chance of showers. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 20 to 25 kt. Waves 2 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .SAT NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft or less. .MON...NE winds around 5 kt. Waves 1 ft or less. $$ ANZ531-160800- Chesapeake Bay from Pooles Island to Sandy Point- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft. A chance of showers. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 20 to 25 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SAT NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .SUN...N winds 10 to 15 kt...becoming NE 5 kt. Waves 1 to 2 ft... subsiding to 1 ft or less. .MON...NE winds 5 kt. Waves less than 1 ft. $$ ANZ538-160800- Patapsco River including Baltimore Harbor- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft. A chance of showers. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .FRI...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers likely. .SAT...N winds 15 kt with gusts to 25 kt. Waves 1 ft. .SAT NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft or less. .MON...NE winds 5 kt. Waves less than 1 ft. $$ ANZ539-160800- Chester River to Queenstown MD- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft. A chance of showers. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. A chance of showers. .SAT NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .SUN...NE winds 5 to 10 kt. Waves 1 to 2 ft...subsiding to flat. .MON...NE winds around 5 kt. Waves 1 ft or less. $$ ANZ532-160800- Chesapeake Bay from Sandy Point to North Beach- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... .THIS AFTERNOON...NE winds 10 kt. Waves 1 ft. Showers likely. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 20 to 25 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 3 ft...subsiding to 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ540-160800- Eastern Bay- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Showers likely. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...W winds 10 to 15 kt...becoming NW 20 to 25 kt after midnight. Waves 2 ft. Showers. .SAT...N winds 20 to 25 ktwith gusts to 30 kt. Waves 2 ft. A chance of showers. .SAT NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to 2 ft...subsiding to flat. .MON...NE winds 5 kt. Waves less than 1 ft. $$ ANZ533-160800- Chesapeake Bay from North Beach to Drum Point- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... .THIS AFTERNOON...NE winds 10 kt. Waves 1 ft. Showers likely. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...W winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Waves 2 to 3 ft. Showers likely. .SAT...N winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 5 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 4 ft...subsiding to 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ541-160800- Choptank River to Cambridge MD and the Little Choptank River- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Showers likely. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...W winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Waves 2 to 3 ft. Showers likely. .SAT...N winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ542-160800- Patuxent River to Broomes Island MD- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Showers likely. .TONIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI...SW winds 5 to 10 kt. Gusts up to 20 kt in the late morning and afternoon. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. Showers likely. .SAT NIGHT...N winds 10 to 15 kt with gusts to 30 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 ft. .MON...NE winds 5 kt. Waves less than 1 ft. $$ ANZ534-160800- Chesapeake Bay from Drum Point to Smith Point- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... .THIS AFTERNOON...NE winds 10 kt. Waves 2 ft. Showers likely. .TONIGHT...SE winds 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...SW winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Waves 3 ft. Showers. .SAT...N winds 25 to 30 kt. Waves 5 ft. Showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 5 ft. .SUN...NE winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 4 ft...subsiding to 1 to 2 ft. .MON...NE winds 10 to 15 kt. Waves 1 to 2 ft. $$ ANZ543-160800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 229 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... ...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SATURDAY NIGHT... .THIS AFTERNOON...NE winds 10 kt. Waves 1 ft. Showers likely. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Patchy fog. Vsby 1 to 3 NM. .FRI NIGHT...SW winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Waves 2 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft. Showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$