


Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
957 FZUS51 KLWX 180233 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 1033 PM EDT Fri Oct 17 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. ANZ500-180800- 1033 PM EDT Fri Oct 17 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will move over and then east of the waters this weekend. A cold front will cross the region Sunday night. Small Craft Advisories will likely be needed again Sunday into early next week. $$ ANZ535-180800- Tidal Potomac from Key Bridge to Indian Head- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...Light winds. Waves flat. .SAT...S winds around 5 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 30 kt in the afternoon. Waves 1 to 2 ft. A chance of showers. .SUN NIGHT...S winds 10 to 15 kt with gusts to 30 kt... becoming SW with gusts to 20 kt after midnight. Waves 1 to 2 ft. Showers likely. .MON...W winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. .TUE...SW winds 5 to 10 kt...becoming W after midnight. Waves 1 ft. .WED...W winds 10 to 15 kt. Waves 1 ft. $$ ANZ536-180800- Tidal Potomac from Indian Head to Cobb Island- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. .SAT...S winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 15 to 20 kt. Gusts up to 20 kt... increasing to 30 kt in the afternoon. Waves 1 to 2 ft. A chance of showers. .SUN NIGHT...S winds 15 to 20 kt...becoming SW after midnight. Gusts up to 25 kt. Waves 2 ft. Showers likely. .MON...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .MON NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft. .WED...W winds 10 to 15 kt. Waves 1 to 2 ft. $$ ANZ537-180800- Tidal Potomac from Cobb Island to Smith Point- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. .SAT...SW winds 5 kt...becoming SE late. Waves 1 ft or less. .SAT NIGHT...S winds 10 to 15 kt. Waves 1 to 2 ft. .SUN...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .SUN NIGHT...S winds 15 to 20 kt...becoming SW after midnight. Gusts up to 25 kt. Waves 3 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .MON NIGHT...W winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 to 2 ft. .WED...NW winds 10 to 15 kt. Waves 1 to 2 ft. $$ ANZ530-180800- Chesapeake Bay north of Pooles Island- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...N winds 5 kt. Waves flat. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. A chance of showers. .SUN NIGHT...S winds 20 to 25 kt...becoming SW after midnight. Waves 2 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft. A chance of showers through the night. .WED...W winds 15 to 20 kt. Waves 1 to 2 ft. $$ ANZ531-180800- Chesapeake Bay from Pooles Island to Sandy Point- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...N winds 5 kt. Waves less than 1 ft. .SAT...E winds around 5 kt...becoming S in the afternoon. Waves 1 ft or less. .SAT NIGHT...S winds 10 to 15 kt. Waves 1 ft. .SUN...S winds 10 to 15 kt...increasing to 20 to 25 kt in the afternoon. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...S winds 20 to 25 kt...becoming SW after midnight. Waves 3 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 2 ft. A chance of showers through the night. .WED...W winds 15 to 20 kt. Waves 2 ft. $$ ANZ538-180800- Patapsco River including Baltimore Harbor- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...Light winds. Waves flat. .SAT...SE winds around 5 kt...increasing to 5 to 10 kt late. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. A chance of showers. .SUN NIGHT...S winds 15 kt...becoming SW after midnight. Gusts up to 25 kt. Waves 1 to 2 ft. Showers. .MON...W winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .MON NIGHT...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .TUE...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. .WED...W winds 10 to 15 kt. Waves 1 ft. $$ ANZ539-180800- Chester River to Queenstown MD- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...N winds 5 kt. Waves flat. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A chance of showers. .SUN NIGHT...S winds 15 to 20 kt...becoming SW after midnight. Gusts up to 25 kt. Waves 3 ft. Showers. .MON...W winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers through the night. .WED...W winds 10 to 15 kt. Waves 2 ft. $$ ANZ532-180800- Chesapeake Bay from Sandy Point to North Beach- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...NW winds 5 kt. Waves less than 1 ft. .SAT...SW winds around 5 kt...becoming S in the afternoon. Waves 1 ft or less. .SAT NIGHT...S winds 10 to 15 kt. Waves 2 ft. .SUN...S winds 20 to 25 kt. Waves 2 ft...building to 4 ft in the afternoon. A chance of showers. .SUN NIGHT...S winds 20 to 25 kt...becoming SW after midnight. Waves 4 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 2 ft. A chance of showers through the night. .WED...W winds 15 to 20 kt. Waves 2 ft. $$ ANZ540-180800- Eastern Bay- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...N winds 5 kt. Waves flat. .SAT...S winds around 5 kt...increasing to 5 to 10 kt late. Waves 1 ft or less. .SAT NIGHT...S winds 10 to 15 kt. Waves 1 ft. .SUN...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A chance of showers. .SUN NIGHT...S winds 20 to 25 kt...becoming SW after midnight. Waves 2 to 3 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 to 2 ft. A chance of showers through the night. .WED...W winds 15 to 20 kt. Waves 1 to 2 ft. $$ ANZ533-180800- Chesapeake Bay from North Beach to Drum Point- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...NW winds 5 kt. Waves less than 1 ft. .SAT...SW winds 5 kt...becoming S in the afternoon. Waves 1 ft or less. .SAT NIGHT...S winds 10 to 15 kt. Waves 2 ft. .SUN...S winds 20 to 25 kt. Gusts up to 30 kt in the afternoon. Waves 2 ft...building to 4 ft in the afternoon. .SUN NIGHT...S winds 20 to 25 kt...becoming SW after midnight. Gusts up to 30 kt. Waves 4 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 ft. .WED...NW winds 15 to 20 kt. Waves 2 to 3 ft. $$ ANZ541-180800- Choptank River to Cambridge MD and the Little Choptank River- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...NW winds 5 kt. Waves flat. .SAT...SW winds around 5 kt...becoming S late. Waves 1 ft or less. .SAT NIGHT...S winds 10 to 15 kt. Waves 1 ft. .SUN...S winds 10 to 15 kt with gusts to 20 kt... increasing to 20 to 25 kt with gusts to 30 kt in the afternoon. Waves 2 to 3 ft. .SUN NIGHT...S winds 20 to 25 kt...becoming SW after midnight. Gusts up to 30 kt. Waves 3 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 to 2 ft. A chance of showers through the night. .WED...NW winds 15 to 20 kt. Waves 2 ft. $$ ANZ542-180800- Patuxent River to Broomes Island MD- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. .SAT...SW winds around 5 kt...becoming SE late. Waves 1 ft. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft. .SUN NIGHT...S winds 15 kt...becoming SW after midnight. Gusts up to 25 kt. Waves 1 ft. Showers. .MON...W winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .MON NIGHT...W winds 5 to 10 kt. Waves 1 ft. .TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft. .WED...NW winds 10 to 15 kt. Waves 1 ft. $$ ANZ534-180800- Chesapeake Bay from Drum Point to Smith Point- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...NW winds 5 kt. Waves less than 1 ft. .SAT...SW winds 5 kt...becoming S late. Waves 1 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SUN...S winds 20 to 25 kt. Gusts up to 30 kt in the afternoon. Waves 3 ft. .SUN NIGHT...S winds 25 to 30 kt...becoming SW 20 to 25 kt after midnight. Waves 5 ft. Showers. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .TUE...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to 3 ft. .WED...NW winds 15 to 20 kt. Waves 2 to 3 ft. $$ ANZ543-180800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 1033 PM EDT Fri Oct 17 2025 .REST OF TONIGHT...NW winds 5 kt. Waves less than 1 ft. .SAT...W winds 5 kt...becoming S in the afternoon. Waves 1 ft or less. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...S winds 20 to 25 kt. Waves 2 to 3 ft. .SUN NIGHT...S winds 25 to 30 kt...becoming SW after midnight. Waves 3 ft. Showers. .MON...W winds 20 to 25 kt. Waves 2 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 ft. .WED...NW winds 15 to 20 kt. Waves 2 ft. $$