HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC THU JUL 30 2026
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JUL 30.
24 HOUR FORECAST VALID 1200 UTC JUL 31.
48 HOUR FORECAST VALID 1200 UTC AUG 01.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH MAIN CENTER 41N69W 1003 MB MOVING NE 15 KT.
WITHIN 780 NM SE AND S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3.5
M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 46N63W 1007 MB.
WITHIN 300 NM E AND SE OF A LINE FROM 42N57W TO 31N73W SE WINDS
20 TO 30 KT. SEAS TO 3.5 M. ELSEWHERE S OF 45N BETWEEN 49W AND
73W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMBINED LOW 47N59W 1010 MB. FROM 32N TO 45N
BETWEEN 42W AND 70W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.LOW 49N45W 1008 MB MOVING SE 20 KT. WITHIN 300 NM N AND NE
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M. ELSEWHERE FROM 39N TO 53N
E OF 52W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW ABSORBED BY NEW LOW 47N35W 1008 MB. WITHIN
420 NM N QUADRANT WINDS TO 25 KT. SEAS TO 3 M. ELSEWHERE FROM 43N
TO 54N E OF 45W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 46N29W 1008 MB. FROM 44N TO
51N E OF 39W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST NEW LOW TO FORM NEAR 61N42W 1018 MB. WITHIN 120
NM S SEMICIRCLE WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW 60N37W 1023 MB. CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 150 NM N OF A
LINE FROM 41N71W TO 43N62W...FROM 47N TO 51N BETWEEN 45W AND
53W...FROM 46N TO 49N E OF 40W...AND N OF 64N W OF 55W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 47N W OF 48W...FROM 47N
TO 49N BETWEEN 46W AND 53W...AND N OF 54N W OF 54W.
.48 HOUR FORECAST DENSE FOG FROM 43N TO 47N BETWEEN 47W AND
58W...FROM 55N TO 65N BETWEEN 53W AND 62W...AND N OF 65N BETWEEN
GREENLAND COAST AND 55W.
.FORECASTER JOSEPH. OCEAN PREDICTION CENTER.
NWS NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA
SYNOPSIS VALID 1200 UTC THU JUL 30.
24 HOUR FORECAST VALID 1200 UTC FRI JUL 31.
48 HOUR FORECAST VALID 1200 UTC SAT AUG 01.
.WARNINGS.
...CARIBBEAN GALE WARNING...
.WITHIN 18N72W TO 16N78W TO 11N80W TO 10N77W TO 11N70W TO 14N66W
TO 18N72W NE TO E WINDS 20 TO 25 KT...EXCEPT S OF 13.5N BETWEEN
70W AND 75W INCLUDING THE GULF OF VENEZUELA NE TO E WINDS 25 TO
30 KT. SEAS 2.5 TO 3 M OUTSIDE THE GULF OF VENEZUELA.
.12 HOUR FORECAST LITTLE CHANGE...EXCEPT S OF 13N BETWEEN
74W AND 76W NE TO E WINDS 30 TO 35 KT. SEAS 3 TO 4 M.
.24 HOUR FORECAST WITHIN 18N72W TO 18N80W TO 12N82W TO 10N77W TO
13N69W TO 18N72W...INCLUDING WATERS NEAR JAMAICA AND HISPANIOLA
AND WITHIN 60 NM OF COAST OF NICARAGUA AND THE GULF OF
VENEZUELA...
E WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M...EXCEPT 3 TO 4 M S OF 13N
BETWEEN 74W AND 76W.
.48 HOUR FORECAST WITHIN 14N71W TO 14N73W TO 13N77W TO 11N78W TO
11N76W TO 13N72W TO 14N71W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
WITHIN 15N72W TO 15N80W TO 12N83W TO 10N81W TO 10N77W TO 13N72W
TO 15N72W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN E SWELL.
.SYNOPSIS AND FORECAST.
.ATLC TROUGH FROM 31N78W TO 29N81W. WITHIN 31N66W TO 31N76W TO
29N75W TO 29N73W TO 30N67W TO 31N66W SW WINDS 20 TO 25 KT. SEAS
2.5 TO 3 M IN SW TO W SWELL.
.24 HOUR FORECAST TROUGH FROM 31N78W TO 29N81W. WITHIN 31N70W TO
31N75W TO 29N74W TO 29N72W TO 30N70W TO 31N70W SW WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST TROUGH DISSIPATED. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC WITHIN 16N52W TO 15N56W TO 14N59W TO 12N58W TO 11N55W TO
12N51W TO 16N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE TO E
SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M IN
NE TO E SWELL.
.ATLC 12 HOUR FORECAST WITHIN 21N69W TO 21N70W TO 22N72W TO
20N72W TO 20N69W TO 21N69W E TO SE WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST WITHIN 21N71W TO 21N73W TO 20N74W TO 19N74W TO
20N73W TO 20N70W TO 21N71W...INCLUDING THE WINDWARD PASSAGE...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST 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 AGUIRRE. NATIONAL HURRICANE CENTER.
$$