National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 072358
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
658 PM EST Wed Jan 7 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.

ANZ500-080900
658 PM EST Wed Jan 7 2026

SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY

A cold front will progress south of the area tonight. High pressure will then expand across the area Thursday. A warm front will approach on Friday and lift north Saturday as a series of low pressure centers track across the Great Lakes region. A pair of cold fronts will push through Saturday night into Sunday. Small Craft Advisories may be needed on Friday, and are likely to be needed over the weekend.

---

ANZ535-080900
Tidal Potomac from Key Bridge to Indian Head
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds around 5 kt. Waves 1 ft or less.

THU
SW winds around 5 kt. Waves 1 ft or less.

THU NIGHT
SE winds around 5 kt. Waves 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Waves 1 ft. Rain.

SAT NIGHT
SW winds 10 to 15 kt...becoming W 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 1 ft. Rain likely.

SUN
NW winds 15 to 20 kt. Waves 1 ft.

MON
NW winds 10 to 15 kt...becoming SW around 5 kt. Waves 1 ft.

---

ANZ536-080900
Tidal Potomac from Indian Head to Cobb Island
658 PM EST Wed Jan 7 2026

TONIGHT
N winds around 5 kt. Waves 1 ft or less.

THU
S winds around 5 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to 3 NM.

THU NIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Waves 1 to 2 ft. Rain.

SAT NIGHT
SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight. Waves 1 to 2 ft. Rain.

SUN
NW winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the morning.

MON
NW winds 10 to 15 kt...becoming SW 5 kt. Waves 1 ft.

---

ANZ537-080900
Tidal Potomac from Cobb Island to Smith Point
658 PM EST Wed Jan 7 2026

TONIGHT
N winds 5 kt. Waves less than 1 ft.

THU
E winds around 5 kt. Waves flat.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

FRI
S winds 5 to 10 kt. Waves 1 ft.

FRI NIGHT
S winds 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain.

SAT NIGHT
S winds 15 to 20 kt...becoming W after midnight. Waves 2 ft. Rain.

SUN
NW winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain in the morning.

MON
NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

---

ANZ530-080900
Chesapeake Bay north of Pooles Island
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds 5 to 10 kt. Waves 1 ft.

THU
W winds around 5 kt. Waves flat.

THU NIGHT
SE winds around 5 kt. Waves 1 ft or less.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Rain.

SAT NIGHT
SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight. Waves 2 ft. Rain.

SUN
W winds 20 to 25 kt. Waves 1 to 2 ft. A chance of rain in the morning.

MON
W winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 1 ft.

---

ANZ531-080900
Chesapeake Bay from Pooles Island to Sandy Point
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds 5 to 10 kt. Waves 1 ft or less.

THU
SW winds around 5 kt. Waves flat.

THU NIGHT
SE winds around 5 kt. Waves 1 ft or less.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain.

SAT NIGHT
SW winds 15 to 20 kt...becoming W after midnight. Waves 2 ft. Rain.

SUN
W winds 10 to 15 kt...increasing to 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the morning.

MON
W winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

---

ANZ538-080900
Patapsco River including Baltimore Harbor
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds around 5 kt. Waves 1 ft or less.

THU
SW winds around 5 kt. Waves flat.

THU NIGHT
SE winds around 5 kt. Waves flat.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
S winds 5 kt. Waves less than 1 ft. Rain likely.

SAT
S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 ft. Rain.

SAT NIGHT
SW winds 10 kt. Waves 1 ft. Rain.

SUN
W winds 10 to 15 kt. Waves 1 ft.

MON
W winds 10 to 15 kt...becoming SW 5 kt. Waves 1 ft or less.

---

ANZ539-080900
Chester River to Queenstown MD
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds 5 to 10 kt. Waves 1 ft or less.

THU
Light winds. Waves flat.

THU NIGHT
SE winds around 5 kt. Waves 1 ft or less.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain.

SAT NIGHT
S winds 15 kt...becoming W after midnight. Gusts up to 20 kt. Waves 2 ft. Rain.

SUN
W winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain in the morning.

MON
W winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

---

ANZ532-080900
Chesapeake Bay from Sandy Point to North Beach
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds 5 to 10 kt. Waves 1 ft or less.

THU
SW winds around 5 kt. Waves flat.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft.

FRI
S winds 10 to 15 kt. Waves 1 to 2 ft.

FRI NIGHT
S winds 10 to 15 kt. Waves 2 ft. Rain likely.

SAT
S winds 15 to 20 kt. Waves 2 to 3 ft. Rain.

SAT NIGHT
S winds 15 to 20 kt...becoming W after midnight. Waves 2 to 3 ft. Rain.

SUN
NW winds 10 to 15 kt...becoming W 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the morning.

MON
NW winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

---

ANZ540-080900
Eastern Bay
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds 5 to 10 kt. Waves 1 ft or less.

THU
W winds around 5 kt. Waves flat.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

FRI
S winds 5 to 10 kt. Waves 1 ft.

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain.

SAT NIGHT
S winds 15 to 20 kt...becoming W 10 to 15 kt after midnight. Waves 2 ft. Rain.

SUN
NW winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the morning.

MON
NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

---

ANZ533-080900
Chesapeake Bay from North Beach to Drum Point
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds 5 to 10 kt. Waves 1 ft or less.

THU
NW winds around 5 kt. Waves flat.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft.

FRI
S winds 10 to 15 kt. Waves 1 to 2 ft.

FRI NIGHT
S winds 10 to 15 kt. Waves 2 ft. Rain likely.

SAT
S winds 15 to 20 kt. Waves 2 to 3 ft. Rain.

SAT NIGHT
S winds 15 to 20 kt...becoming W after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the morning.

MON
NW winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 2 to 3 ft...subsiding to 1 ft.

---

ANZ541-080900
Choptank River to Cambridge MD and the Little Choptank River
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds 5 to 10 kt. Waves 1 ft or less.

THU
NW winds around 5 kt. Waves flat.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

FRI
S winds 10 to 15 kt. Waves 1 ft.

FRI NIGHT
S winds 10 to 15 kt. Waves 1 ft. Rain likely.

SAT
S winds 15 to 20 kt. Waves 1 to 2 ft. Rain.

SAT NIGHT
S winds 15 to 20 kt...becoming W after midnight. Gusts up to 25 kt. Waves 2 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the morning.

MON
NW winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

---

ANZ542-080900
Patuxent River to Broomes Island MD
658 PM EST Wed Jan 7 2026

TONIGHT
NW winds around 5 kt. Waves 1 ft or less.

THU
NE winds around 5 kt. Waves 1 ft or less.

THU NIGHT
SE winds around 5 kt. Waves 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft.

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Rain.

SAT NIGHT
S winds 10 to 15 kt...becoming W after midnight. Gusts up to 20 kt. Waves 1 ft. Rain.

SUN
NW winds 10 to 15 kt. Waves 1 ft. A chance of rain in the morning.

MON
NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft.

---

ANZ534-080900
Chesapeake Bay from Drum Point to Smith Point
658 PM EST Wed Jan 7 2026

TONIGHT
N winds 5 kt. Waves less than 1 ft.

THU
NW winds around 5 kt. Waves flat.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft.

FRI
S winds 10 to 15 kt. Waves 2 ft.

FRI NIGHT
S winds 10 to 15 kt. Waves 2 ft. Rain likely.

SAT
S winds 15 to 20 kt. Waves 2 to 3 ft. Rain.

SAT NIGHT
S winds 15 to 20 kt...becoming W after midnight. Waves 3 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 2 to 3 ft...building to 4 ft. A chance of rain through the day.

MON
NW winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 2 to 3 ft...subsiding to 1 to 2 ft.

---

ANZ543-080900
Tangier Sound and the inland waters surrounding Bloodsworth Island
658 PM EST Wed Jan 7 2026

TONIGHT
N winds 5 kt. Waves less than 1 ft.

THU
NW winds around 5 kt. Waves flat.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

FRI
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.

FRI NIGHT
S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain.

SAT
S winds 15 to 20 kt. Waves 2 ft. Rain.

SAT NIGHT
S winds 15 to 20 kt...becoming SW after midnight. Waves 2 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 1 to 2 ft. A chance of rain through the day.

MON
NW winds 20 to 25 kt...diminishing to 10 to 15 kt in the afternoon, then becoming SW 5 to 10 kt. Waves 1 to 2 ft.