645
FZUS51 KLWX 280018
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
717 PM EST SAT DEC 27 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.
ANZ500-280900-
717 PM EST SAT DEC 27 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE TO THE NORTH WILL BRIEFLY GAIN CONTROL THROUGH SUNDAY
MORNING. A WAVE OF LOW PRESSURE WILL DRIVE A STRONG COLD FRONT
ACROSS THE AREA SUNDAY NIGHT INTO MONDAY. A CLIPPER-TYPE SYSTEM
NEARS THE WATERS BY THE MIDDLE OF NEXT WEEK. SMALL CRAFT ADVISORIES
WILL LIKELY BE NEEDED SUNDAY NIGHT THROUGH TUESDAY. GALE CONDITIONS
ARE POSSIBLE MONDAY EVENING THROUGH TUESDAY AFTERNOON.
ANZ535-280900-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT LATE. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT. A
CHANCE OF RAIN. PATCHY FOG.
MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 FT.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-280900-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
717 PM EST SAT DEC 27 2025
TONIGHT...NE WINDS 5 TO 10 KT UNTIL EARLY MORNING
BECOMING
LIGHT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 20 TO 25 KT. WAVES 2 FT.
MON
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 FT. A
CHANCE OF RAIN.
MON NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-280900-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SE WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES
1 FT OR LESS.
SUN NIGHT
S WINDS 15 TO 20 KT. GUSTS UP TO 25 KT LATE. WAVES
2 FT. PATCHY FOG. VSBY 1 TO 3 NM.
MON
SW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A CHANCE OF
RAIN.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE NIGHT
W WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO
2 FT.
ANZ530-280900-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN...SE WINDS AROUND 5 KT
BECOMING S LATE. WAVES 1 FT. A CHANCE
OF RAIN. VSBY 1 TO 3 NM.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN.
PATCHY FOG. VSBY 1 TO 3 NM.
MON...SW WINDS 15 TO 20 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. WAVES 2 FT. RAIN LIKELY. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 2 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
TUE NIGHT...W WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-280900-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF RAIN.
PATCHY FOG. VSBY 1 TO 3 NM.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. A CHANCE OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
MON...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W 20 TO
25 KT WITH GUSTS TO 35 KT IN THE AFTERNOON. WAVES 3 FT. RAIN LIKELY.
PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT
W WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
ANZ538-280900-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
717 PM EST SAT DEC 27 2025
TONIGHT...NE WINDS 5 TO 10 KT THIS EVENING
BECOMING LIGHT. WAVES
FLAT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF RAIN.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
RAIN LIKELY. PATCHY FOG.
MON NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ539-280900-
CHESTER RIVER TO QUEENSTOWN MD-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
MON...SW WINDS 15 TO 20 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. WAVES 3 FT. RAIN LIKELY. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT...W WINDS 20 TO 25 KT
DIMINISHING TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-280900-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...SE WINDS 10 TO 15 KT. WAVES FLAT
BUILDING TO 2 FT IN THE
AFTERNOON.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
MON
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. RAIN
LIKELY. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT
W WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 TO 2 FT.
ANZ540-280900-
EASTERN BAY-
717 PM EST SAT DEC 27 2025
TONIGHT...NE WINDS 5 TO 10 KT UNTIL EARLY MORNING
BECOMING
LIGHT. WAVES 1 FT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. RAIN
LIKELY. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
TUE NIGHT...W WINDS 20 TO 25 KT
DIMINISHING TO 15 KT AFTER
MIDNIGHT. WAVES 2 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU
W WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ533-280900-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
717 PM EST SAT DEC 27 2025
TONIGHT...NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT
LATE.
SUN...SE WINDS 10 TO 15 KT. WAVES FLAT
BUILDING TO 2 FT IN THE
AFTERNOON.
SUN NIGHT
S WINDS 20 TO 25 KT. WAVES 3 FT. PATCHY FOG. VSBY 1 TO
3 NM.
MON
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. RAIN
LIKELY. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE
W WINDS 25 TO 30 KT. WAVES 4 FT.
TUE NIGHT
W WINDS 20 TO 25 KT. GUSTS UP TO 30 KT IN THE EVENING.
WAVES 4 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
WED
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 TO 2 FT.
ANZ541-280900-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. PATCHY FOG. VSBY
1 TO 3 NM.
MON
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. RAIN
LIKELY. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE
W WINDS 25 TO 30 KT. WAVES 4 FT.
TUE NIGHT
W WINDS 20 TO 25 KT. GUSTS UP TO 30 KT IN THE EVENING.
WAVES 2 TO 3 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO
2 FT.
ANZ542-280900-
PATUXENT RIVER TO BROOMES ISLAND MD-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF RAIN.
MON NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-280900-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
717 PM EST SAT DEC 27 2025
TONIGHT...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
SUN...E WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
SUN NIGHT
S WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 3 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
MON...SW WINDS 20 TO 25 KT. GUSTS UP TO 25 KT
INCREASING TO
35 KT IN THE AFTERNOON. WAVES 4 FT. A CHANCE OF RAIN. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT
W WINDS 20 TO 25 KT. WAVES 3 FT.
WED
W WINDS 10 TO 15 KT. WAVES 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT.
ANZ543-280900-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
717 PM EST SAT DEC 27 2025
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...E WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
MON
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF RAIN. PATCHY FOG.
MON NIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
TUE NIGHT
W WINDS 20 TO 25 KT. WAVES 2 FT.
WED
W WINDS 10 TO 15 KT. WAVES 1 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
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