FZUS51 KLWX 151158 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 757 AM 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. ANZ500-152000- 757 AM EDT Thu Oct 15 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A dry cold front slowly moves through the area today. A stronger cold front moves across the area Friday, with gale conditions possible, especially over the open waters Friday night into Saturday. Small Craft Advisory conditions persist through Sunday morning. $$ ANZ535-152000- Tidal Potomac from Key Bridge to Indian Head- 758 AM EDT Thu Oct 15 2026 .TODAY...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .TONIGHT...SE winds around 5 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI...SW winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt late. Waves 1 ft. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 ft. Showers. .SAT...N winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft. .SAT NIGHT...N winds 5 to 10 kt. Gusts up to 25 kt in the evening. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...N winds 5 to 10 kt. Waves 1 ft. $$ ANZ536-152000- Tidal Potomac from Indian Head to Cobb Island- 758 AM EDT Thu Oct 15 2026 .TODAY...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .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. .FRI NIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts up to 25 kt. Waves 1 to 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...N winds 10 to 15 kt...becoming NE 5 kt. Waves 1 ft. .MON...N winds around 5 kt. Waves 1 ft. $$ ANZ537-152000- Tidal Potomac from Cobb Island to Smith Point- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers this morning, then showers likely this afternoon. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt. Waves 1 ft. .FRI NIGHT...SW winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. .SUN...NE winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 4 ft...subsiding to 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ530-152000- Chesapeake Bay north of Pooles Island- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 kt...becoming E late. Waves 1 ft or less. A chance of showers this afternoon. .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. .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. .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 5 to 10 kt. Waves 1 ft or less. $$ ANZ531-152000- Chesapeake Bay from Pooles Island to Sandy Point- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 to 2 ft. A chance of showers this afternoon. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .FRI NIGHT...W winds 15 kt...becoming NW after midnight. Gusts up to 30 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ538-152000- Patapsco River including Baltimore Harbor- 758 AM EDT Thu Oct 15 2026 .TODAY...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers this afternoon. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .FRI...S winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 ft. Showers likely. .SAT...N winds 15 kt with gusts to 25 kt. Waves 2 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. .MON...NE winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ539-152000- Chester River to Queenstown MD- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 ft. A chance of showers this afternoon. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .FRI NIGHT...W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .SAT NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 kt. Waves 1 to 2 ft. .MON...NE winds 5 kt. Waves less than 1 ft. $$ ANZ532-152000- Chesapeake Bay from Sandy Point to North Beach- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt. Gusts up to 20 kt until late afternoon. Waves 1 to 2 ft. A slight chance of showers this morning, then a chance of showers this afternoon. .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. .FRI NIGHT...W winds 15 kt...becoming NW after midnight. Gusts up to 30 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. .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. $$ ANZ540-152000- Eastern Bay- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 to 2 ft. A slight chance of showers this morning, then a chance of showers this afternoon. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .FRI NIGHT...W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 ft. Showers. .SAT...N winds 20 kt with gusts to 30 kt. Waves 2 to 3 ft. .SAT NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ533-152000- Chesapeake Bay from North Beach to Drum Point- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt. Gusts up to 20 kt until late afternoon. Waves 2 to 3 ft...subsiding to 1 ft late. A chance of showers. .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. .FRI NIGHT...W winds 10 to 15 kt with gusts to 20 kt... becoming NW 20 to 25 kt with gusts to 30 kt after midnight. Waves 2 ft... building to 4 ft after midnight. Showers. .SAT...N winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft. A chance of showers. .SAT NIGHT...N winds 25 to 30 kt. Waves 5 ft. .SUN...NE winds 20 to 25 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. $$ ANZ541-152000- Choptank River to Cambridge MD and the Little Choptank River- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 to 2 ft. A chance of showers. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts to 20 kt... becoming NW 15 to 20 kt with gusts to 30 kt after midnight. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ542-152000- Patuxent River to Broomes Island MD- 758 AM EDT Thu Oct 15 2026 .TODAY...NE winds 5 to 10 kt. Gusts up to 20 kt until late afternoon. Waves 1 ft. A chance of showers this morning, then showers likely this afternoon. .TONIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI...SW winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 kt. Waves 1 ft. .MON...NE winds around 5 kt. Waves 1 ft. $$ ANZ534-152000- Chesapeake Bay from Drum Point to Smith Point- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers this morning, then showers likely this afternoon. .TONIGHT...SE winds 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt...becoming NW 20 to 25 kt with gusts to 30 kt after midnight. Waves 2 ft... building to 4 ft after midnight. Showers. .SAT...N winds 25 to 30 kt. Waves 5 ft. A chance of showers. .SAT NIGHT...N winds 25 to 30 kt. Waves 5 ft. .SUN...NE winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 3 ft...subsiding to 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ543-152000- Tangier Sound and the inland waters surrounding Bloodsworth Island- 758 AM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .TONIGHT...E 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. .FRI NIGHT...SW winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 2 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 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. $$