Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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935 FZUS51 KLWX 182249 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 649 PM EDT Wed Sep 18 2024 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. ANZ500-190800- 649 PM EDT Wed Sep 18 2024 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... Low pressure will develop off the coast tonight and slowly drift eastward through Friday. A backdoor cold front may push though the area Saturday. Small Craft Advisories may be needed for portions of the waters Thursday, and again Friday night through Sunday. $$ ANZ535-190800- Tidal Potomac from Key Bridge to Indian Head- 649 PM EDT Wed Sep 18 2024 .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. Scattered showers with isolated tstms this evening, then scattered showers after midnight. .THU...N winds 5 kt. Waves less than 1 ft. .THU NIGHT...N winds 5 kt. Waves less than 1 ft. .FRI...NE winds 5 kt. Waves less than 1 ft. .FRI NIGHT...NE winds 5 kt. Waves less than 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...NE winds around 5 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-190800- Tidal Potomac from Indian Head to Cobb Island- 649 PM EDT Wed Sep 18 2024 .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. Scattered showers with isolated tstms this evening, then scattered showers after midnight. Patchy fog. Vsby 1 NM or less... increasing to 1 to 3 NM after midnight. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...NW winds 5 kt. Waves less than 1 ft. .FRI...N winds 5 kt. Waves less than 1 ft. .FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-190800- Tidal Potomac from Cobb Island to Smith Point- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Scattered showers with isolated tstms this evening, then scattered showers after midnight. Patchy fog. Vsby 1 NM or less...increasing to 1 to 3 NM after midnight. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...NW winds 5 kt. Waves less than 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 to 2 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT NIGHT...NE winds 10 to 15 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt. Waves 2 to 3 ft. .MON...NE winds 10 to 15 kt. Waves 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-190800- Chesapeake Bay north of Pooles Island- 649 PM EDT Wed Sep 18 2024 .TONIGHT...NE winds 10 kt. Waves 1 ft. Scattered showers, mainly this evening with vsby 1 to 3 NM. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. .FRI...NE winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. $$ ANZ531-190800- Chesapeake Bay from Pooles Island to Sandy Point- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 2 ft. Scattered showers, mainly this evening. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...NE winds 5 to 10 kt. Waves 1 to 2 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT...NE winds 10 to 15 kt. Waves 1 to 2 ft. .SAT NIGHT...E winds 10 to 15 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt. Waves 1 to 2 ft. .MON...E winds 10 to 15 kt. Waves 1 to 2 ft. $$ ANZ538-190800- Patapsco River including Baltimore Harbor- 649 PM EDT Wed Sep 18 2024 .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. Scattered showers, mainly this evening. .THU...N winds 5 kt. Waves less than 1 ft. .THU NIGHT...N winds 5 kt. Waves less than 1 ft. .FRI...NE winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. $$ ANZ539-190800- Chester River to Queenstown MD- 649 PM EDT Wed Sep 18 2024 .TONIGHT...NE winds 10 kt. Waves 1 ft. Scattered showers, mainly this evening. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 10 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. $$ ANZ532-190800- Chesapeake Bay from Sandy Point to North Beach- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 2 ft. Scattered showers, mainly this evening. .THU...N winds 5 to 10 kt. Waves 1 to 2 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 2 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SAT NIGHT...E winds 10 to 15 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt. Waves 2 ft. .MON...E winds 10 to 15 kt. Waves 2 ft. $$ ANZ540-190800- Eastern Bay- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 1 ft. Scattered showers, mainly this evening. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SAT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SAT NIGHT...NE winds 10 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt. Waves 1 ft. .MON...E winds 10 kt. Waves 1 ft. $$ ANZ533-190800- Chesapeake Bay from North Beach to Drum Point- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Scattered showers. Vsby 1 to 3 NM. .THU...N winds 5 to 10 kt. Waves 2 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 2 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT NIGHT...NE winds 10 to 15 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt. Waves 2 ft. .MON...NE winds 10 to 15 kt. Waves 2 ft. $$ ANZ541-190800- Choptank River to Cambridge MD and the Little Choptank River- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Scattered showers, mainly this evening. Vsby 1 to 3 NM. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SAT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SAT NIGHT...NE winds 10 to 15 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt. Waves 1 to 2 ft. .MON...E winds 10 to 15 kt. Waves 1 to 2 ft. $$ ANZ542-190800- Patuxent River to Broomes Island MD- 649 PM EDT Wed Sep 18 2024 .TONIGHT...NE winds 10 kt. Waves 1 ft. Numerous showers with isolated tstms this evening, then scattered showers after midnight. Patchy fog. Vsby 1 to 3 NM. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...N winds 5 kt. Waves less than 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 10 kt. Waves 1 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-190800- Chesapeake Bay from Drum Point to Smith Point- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 15 kt with gusts to 20 kt. Waves 2 ft. Scattered showers with isolated tstms this evening, then isolated showers after midnight. Patchy fog. Vsby 1 to 3 NM. .THU...N winds 10 to 15 kt. Waves 2 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft. .FRI...N winds 10 kt. Waves 2 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SAT NIGHT...NE winds 10 to 15 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt. Waves 2 to 3 ft. .MON...NE winds 10 to 15 kt. Waves 2 to 3 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-190800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 649 PM EDT Wed Sep 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TONIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. Scattered showers, mainly this evening. Patchy fog. Vsby 1 NM or less...increasing to 1 to 3 NM after midnight. .THU...N winds 10 to 15 kt. Waves 1 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 10 kt. Waves 1 ft. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SAT NIGHT...NE winds 10 to 15 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt. Waves 1 to 2 ft. .MON...NE winds 10 to 15 kt. Waves 1 to 2 ft. $$