Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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249 FZUS51 KLWX 311135 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 635 AM EST Fri Jan 31 2025 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. ANZ500-312100- 635 AM EST Fri Jan 31 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A low pressure system will cross from west to east across the area today, with the trailing cold front pushing through by early Saturday morning. High pressure will build into the area Saturday before departing to the east Sunday. As low pressure passes to the north, a warm front will lift through the area by Monday morning, followed by a cold front Monday night. Small Craft Advisories will likely be needed Saturday. $$ ANZ535-312100- Tidal Potomac from Key Bridge to Indian Head- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...SW winds 5 to 10 kt. Gusts up to 25 kt late this morning and afternoon. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...SE winds around 5 kt. Waves 1 ft. .SUN NIGHT...S winds 5 kt. Waves less than 1 ft. .MON...W winds 5 kt. Waves less than 1 ft. .TUE...N winds around 5 kt. Waves 1 ft. $$ ANZ536-312100- Tidal Potomac from Indian Head to Cobb Island- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 kt with gusts to 20 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...SE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ537-312100- Tidal Potomac from Cobb Island to Smith Point- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 NM or less. .SAT...NW winds 15 to 20 kt...becoming N 10 to 15 kt in the afternoon. Gusts up to 25 kt. Waves 3 ft. .SAT NIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ530-312100- Chesapeake Bay north of Pooles Island- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING... .TODAY...S winds 5 to 10 kt...becoming SW 15 kt with gusts to 25 kt this afternoon. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...SE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...S winds 5 kt. Waves less than 1 ft. .MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft. $$ ANZ531-312100- Chesapeake Bay from Pooles Island to Sandy Point- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 NM or less. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft. .SUN...SE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ538-312100- Patapsco River including Baltimore Harbor- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING... .TODAY...S winds 5 to 10 kt...becoming SW 15 kt with gusts to 25 kt this afternoon. Waves 1 ft or less. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less. .SUN...SE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...S winds 5 kt. Waves less than 1 ft. .MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft or less. .TUE...N winds around 5 kt. Waves 1 ft or less. $$ ANZ539-312100- Chester River to Queenstown MD- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt this afternoon. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft. .SUN...SE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ532-312100- Chesapeake Bay from Sandy Point to North Beach- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt...becoming W 5 to 10 kt late. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .SAT NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft. $$ ANZ540-312100- Eastern Bay- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt...becoming W late. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. .SAT NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. .SUN...SE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ533-312100- Chesapeake Bay from North Beach to Drum Point- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt...becoming W late. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 NM or less. .SAT...N winds 15 to 20 kt...diminishing to 10 to 15 kt late. Gusts up to 25 kt. Waves 3 ft. .SAT NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft. $$ ANZ541-312100- Choptank River to Cambridge MD and the Little Choptank River- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 NM or less. .SAT...N winds 15 to 20 kt. Gusts up to 30 kt... diminishing to 20 kt late. Waves 2 ft. .SAT NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft. $$ ANZ542-312100- Patuxent River to Broomes Island MD- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM. .SAT...N winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...SE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ534-312100- Chesapeake Bay from Drum Point to Smith Point- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Rain. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 10 kt. Waves 2 ft. Rain. Patchy dense fog. Vsby 1 NM or less. .SAT...NW winds 15 to 20 kt...becoming N late. Gusts up to 30 kt. Waves 4 ft. .SAT NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. .SUN...SE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ543-312100- Tangier Sound and the inland waters surrounding Bloodsworth Island- 635 AM EST Fri Jan 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... .TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 NM or less. .SAT...NW winds 15 to 20 kt...becoming N 10 to 15 kt late. Gusts up to 25 kt. Waves 2 ft. .SAT NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. .MON...SW winds 5 to 10 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft. $$