559
FZUS51 KLWX 120858
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 AM EDT FRI JUN 12 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.
ANZ500-122300-
457 AM EDT FRI JUN 12 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT BRINGS POTENTIAL FOR MORE WIDESPREAD SEVERE
THUNDERSTORMS TODAY INTO TONIGHT. SMALL CRAFT ADVISORIES MAY BE
NEEDED IN THE WAKE OF THE FRONT THIS EVENING INTO SATURDAY MORNING,
AND THEN AGAIN IN SOUTHERLY CHANNELING ON SUNDAY. GUSTY WINDS AND
RAIN CHANCES COULD RETURN SUNDAY AFTERNOON.
ANZ535-122300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
LIGHT WINDS. WAVES 1 FT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS AND TSTMS
LIKELY.
SAT
NW WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-122300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
SW WINDS 5 KT. WAVES FLAT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SHOWERS WITH TSTMS LIKELY.
SAT
NW WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. A CHANCE OF SHOWERS AND TSTMS.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-122300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES FLAT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS AND TSTMS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...N WINDS 5 TO 10 KT
BECOMING E. WAVES 1 FT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-122300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
SAT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT. WAVES 1 FT
OR LESS.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-122300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. SHOWERS AND TSTMS LIKELY.
SAT...N WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT. WAVES 1 TO
2 FT...SUBSIDING TO FLAT AFTER MIDNIGHT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-122300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES FLAT.
TODAY
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS AND TSTMS
LIKELY.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SAT
NW WINDS 5 KT. WAVES FLAT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON...NW WINDS 5 TO 10 KT
BECOMING LIGHT. WAVES 1 FT OR LESS.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-122300-
CHESTER RIVER TO QUEENSTOWN MD-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS AND TSTMS
LIKELY.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT. SHOWERS
AND TSTMS LIKELY.
SAT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT. WAVES 1 TO
2 FT...SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
SW WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-122300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SHOWERS AND TSTMS LIKELY.
SAT...N WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES 1 FT
OR LESS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...S WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT WITH GUSTS TO
25 KT IN THE AFTERNOON. WAVES 1 FT...BUILDING TO 3 FT IN THE
AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING NW
AFTER MIDNIGHT. WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT...DIMINISHING TO 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-122300-
EASTERN BAY-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES FLAT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT. SHOWERS
AND TSTMS LIKELY.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
S WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-122300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES FLAT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...S WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT WITH GUSTS TO
25 KT IN THE AFTERNOON. WAVES 1 FT...BUILDING TO 3 FT IN THE
AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NW
10 TO 15 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT. WAVES 1 TO 2 FT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-122300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES FLAT.
TODAY
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN...S WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT WITH GUSTS TO
25 KT IN THE AFTERNOON. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT...DIMINISHING TO 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-122300-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
TUE
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-122300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 2 TO 3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...N WINDS 10 TO 15 KT
BECOMING E 5 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-122300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 AM EDT FRI JUN 12 2026
REST OF THE OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A
SLIGHT CHANCE OF SHOWERS.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS UP TO
20 KT. WAVES 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT...BECOMING NE 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO 1 FT OR LESS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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