National Weather Service Marine Forecast FZNT01 KWBC

FZNT01 KWBC 180337 CCA
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI JUL 18 2025

CCODE/1:31:04:01:00/AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE NATIONAL WEATHER SERVICE. EMAIL US AT VOSOPS@NOAA.GOV(LOWERCASE).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP (ALL LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0000 UTC JUL 18. 24 HOUR FORECAST VALID 0000 UTC JUL 19. 48 HOUR FORECAST VALID 0000 UTC JUL 20.

.WARNINGS.

GALE WARNING

.LOW 57N40W 1001 MB MOVING SE 15 KT. WITHIN 240 NM S SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE WITHIN 480 NM SE...300 NM SW...AND 420 NM N AND NW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST LOW DISSIPATED E OF AREA. FROM 49N TO 57N E OF 40W WINDS LESS THAN 25 KT. SEAS 2.5 TO 3.5 M. .48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 59N53W BELOW.

GALE WARNING

.INLAND COMPLEX LOW WITH MAIN CENTER 49N69W 998 MB MOVING NE 25 KT. W OF A LINE FROM 49N46W TO 36N61W TO 34N68W WINDS TO 25 KT. SEAS TO 2.5 M. .24 HOUR FORECAST COMBINED LOW 54N56W 990 MB. WITHIN 240 NM N SEMICIRCLE...AND WITHIN 540 NM S AND SE...AND 420 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 35N TO 59N BETWEEN 43W AND 65W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. .48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 59N53W 985 MB. WITHIN 300 NM E AND NE QUADRANTS WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ALSO FROM 54N TO 61N BETWEEN 42W AND 61W WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 48N TO 61N BETWEEN 35W AND 63W...AND N OF 61N BETWEEN 52W AND 63W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST WITHIN 300 NM E OF A LINE FROM 37N57W TO 43N52W TO 48N43W S TO SW WINDS TO 25 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 62N E OF 39W...N OF 63N W OF 58W...AND FROM 42N TO 51N BETWEEN 45W AND 68W.

24 HOUR FORECAST DENSE FOG N OF 65N E OF GREENLAND
N OF 62N W OF 59W...AND FROM 43N TO 55N BETWEEN 43W AND 61W. .48 HOUR FORECAST DENSE FOG FROM 59N TO 65N BETWEEN 38W AND 44W...FROM 62N TO 65N BETWEEN 51W AND 57W...AND FROM 48N TO 57N E OF 39W.

.FORECASTER MILLS. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF AMERICA

SYNOPSIS VALID 0000 UTC FRI JUL 18. 24 HOUR FORECAST VALID 0000 UTC SAT JUL 19. 48 HOUR FORECAST VALID 0000 UTC SUN JUL 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC AND CARIBBEAN WITHIN 21N72W TO 22N72W TO 21N73W TO 20N72W TO 20N71W TO 21N72W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST WITHIN 21N71W TO 21N73W TO 20N75W TO 19N75W TO 20N71W TO 21N71W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.CARIBBEAN WITHIN 17N73W TO 15N82W TO 11N82W TO 09N77W TO 11N75W TO 12N69W TO 17N73W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST WITHIN 14N70W TO 17N73W TO 17N81W TO 13N83W TO 10N77W TO 11N71W TO 14N70W...INCLUDING WITHIN 60 NM OF COAST OF NICARAGUA AND THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. .48 HOUR FORECAST WITHIN 13N69W TO 14N73W TO 13N75W TO 11N75W TO 11N72W TO 12N68W TO 13N69W...INCLUDING THE GULF OF VENEZUELA... NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N75W TO 16N78W TO 15N82W TO 11N82W TO 10N78W TO 11N75W TO 14N75W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.

.CARIBBEAN WITHIN 17N86W TO 17N87W TO 16N87W TO 16N85W TO 17N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.


.FORECASTER ERA. NATIONAL HURRICANE CENTER.