HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SUN JUL 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JUL 19.
24 HOUR FORECAST VALID 0000 UTC JUL 20.
48 HOUR FORECAST VALID 0000 UTC JUL 21.
.WARNINGS.
...GALE WARNING...
.LOW 61N61W 998 MB MOVING NW 05 KT. FROM 58N TO 62N BETWEEN 44W
AND 52W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE BETWEEN
180 NM AND 540 NM E QUADRANT...WITHIN 180 NM W AND NW QUADRANTS
AND FROM 52N TO 60N BETWEEN 35W AND 41W WINDS TO 25 KT. SEAS TO
3 M.
.24 HOUR FORECAST LOW 63N62W 1006 MB. WITHIN 120 NM W OF
GREENLAND N OF 61N WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.
...GALE WARNING...
.LOW INLAND NEAR 47N73W 996 MB MOVING NE 20 KT. W OF A LINE FROM
47N64W TO 43N66W TO 31N75W AREA OF S TO SW WINDS 20 TO 30 KT.
SEAS TO 2.5 M.
.12 HOUR FORECAST LOW INLAND 48N66W 990 MB. FROM 45N TO 49N
BETWEEN 58W AND 64W AND FROM 38N TO 40N BETWEEN 64W AND 69W
WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 49N64W 988 MB. FRONT TO EXTEND FROM 51N59W
47N58W TO 40N65W TO 35N78W. WITHIN 180 NM S AND SW QUADRANTS AND
WITHIN 240 NM NE AND E OF FRONT N OF 38N WINDS 25 TO 40 KT. SEAS
2.5 TO 4 M...HIGHEST E OF FRONT S OF 46N. ELSEWHERE WITHIN THE
GULF OF SAINT LAWRENCE...WITHIN 420 NM NE QUADRANT AND WITHIN
360 NM E AND SE OF THE FRONT WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 57N57W 993 MB. FROM 59N TO 63N BETWEEN 46W
AND 53W WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE FROM 48N
TO 63N BETWEEN 38W AND 57W AND WITHIN 240 SW SEMICIRCLE WINDS 20
TO 30 KT. SEAS 2.5 TO 4 M...HIGHEST NEAR 56N50W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 56N
BETWEEN 147W AND 158W...AND N OF A LINE FROM 57N35W TO 45N37W TO
53N45W TO 54N55W TO 60N63W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 46N BETWEEN 52W AND
62W...FROM 42N TO 52N BETWEEN 44W AND 52W...E OF A LINE FROM
63N58W TO 53N47W TO 46N37W...FROM 56N TO 59N W OF 55W...N OF A
LINE FROM 62N64W TO 65N56W...AND N OF A LINE FROM 60N43W TO
64N35W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 52N BETWEEN 43W AND
58W...W OF A LINE FROM 52N50W TO 60N60W TO 67N58W...FROM 47N TO
59N BETWEEN 35W AND 42W...AND N OF A LINE FROM 57N48W TO 63N35W.
.FORECASTER BANCROFT. 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 SUN JUL 19.
24 HOUR FORECAST VALID 0000 UTC MON JUL 20.
48 HOUR FORECAST VALID 0000 UTC TUE JUL 21.
.WARNINGS.
...CARIBBEAN GALE WARNING...
.WITHIN 12N74.5W TO 12N75W TO 11N75W TO 11N74.5W TO 12N74.5W NE
TO E WINDS 30 TO 35 KT. SEAS 3.0 TO 3.5 M. ELSEWHERE WITHIN
16N72W TO 15N76W TO 12N78W TO 11N76W TO 11N71W TO 13N69W TO
16N72W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO
30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN 16N71W TO
17N77W TO 11N82W TO 09N78W TO 13N77W TO 13N69W TO 16N71W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.12 HOUR FORECAST WITHIN 16N75W TO 15N78W TO 11N78W TO 12N74W TO
11N71W TO 13N70W TO 16N75W...INCLUDING THE GULF OF VENEZUELA...
E WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN 17N73W
TO 15N81W TO 11N83W TO 10N77W TO 12N73W TO 13N69W TO 17N73W NE TO
E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M IN E SWELL.
.24 HOUR FORECAST WITHIN 13N74W TO 15N75W TO 12N78W TO 11N77W TO
12N70W TO 13N74W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 16N72W TO
16N78W TO 11N82W TO 10N80W TO 12N73W TO 16N72W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.48 HOUR FORECAST WITHIN 14N72W TO 12N72W TO 13N74W TO 11N75W TO
12N72W TO 11N70W TO 14N72W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 30 KT. SEAS TO 2.5 M. WITHIN 14N75W TO 15N77W
TO 13N79W TO 13N81W TO 12N81W TO 11N79W TO 14N75W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 14N58W TO 17N59W TO 14N60W TO 12N61W TO 11N60W TO
12N55W TO 14N58W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR
LESS. SEAS 2.5 M IN E SWELL.
.21 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA 42 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL
CYCLONE...NEAR 29N85.5W 1009 MB. WITHIN 29N83W TO 29N84W TO
29N85W TO 27N84W TO 28N83W TO 29N83W S TO SW WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
29N86W 1008 MB. WITHIN 29N83W TO 29N84W TO 28N84W TO 28N83W TO
29N83W S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.