HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT JUN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC JUN 20.
24 HOUR FORECAST VALID 1800 UTC JUN 21.
48 HOUR FORECAST VALID 1800 UTC JUN 22.
.WARNINGS.
...GALE WARNING...
.LOW 40N60W 999 MB MOVING NE 35 KT. WITHIN 120 NM EITHER SIDE OF
A LINE FROM 36N58W TO 41N55W WINDS 30 TO 40 KT. SEAS 3 TO 5 M.
ALSO FROM 39N TO 41N BETWEEN 64W AND 61W WINDS 25 TO 35 KT. SEAS
3 TO 4 M. ELSEWHERE FROM 32N TO 44N BETWEEN 70W AND 50W WINDS 20
TO 30 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW DISSIPATED. WITHIN AN AREA BOUNDED BY A
LINE FROM 33N52W TO 46N35W TO 46N59W TO 38N62W TO 33N52W WINDS
TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST CONDITIONS ABSORBED BY LOW 54N40W DESCRIBED IN
GALE WARNING BELOW.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 48N60W 990 MB MOVING E 05 KT. IN
THE GULF OF SAINT LAWRENCE N OF 49N E OF 62W...AND WITHIN 300 NM
NE OF A LINE FROM 52N56W TO 44N44W...WINDS 20 TO 30 KT. SEAS TO
3 M.
.09 HOUR FORECAST NEW LOW 49N46W 990 MB. WITHIN 180 NM NE OF A
FRONT FROM LOW CENTER TO 45N40W WINDS 30 TO 40 KT. SEAS 2.5 TO 4
M.
.24 HOUR FORECAST LOW 52N45W 987 MB. WITHIN 180 NM N AND NE OF A
FRONT FROM 52N47W TO LOW CENTER TO 52N40W TO 49N37W WINDS 30 TO
40 KT. SEAS 2.5 TO 5 M. ELSEWHERE FROM 46N TO 51N BETWEEN 48W
AND 35W...AND FROM 51N TO 56N BETWEEN 56W AND 35W...WINDS 20 TO
30 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW 54N40W 996 MB. FROM 44N TO 60N BETWEEN 50W
AND 35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.SYNOPSIS AND FORECAST.
.24 HOUR FORECAST WITHIN 60 NM OF THE W COAST OF GREENLAND FROM
62N TO 66N AREA OF SE WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW 62N57W 1008 MB. BETWEEN 90 NM AND 240 NM N
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA
BOUNDED BY A LINE FROM 42N51W TO 42N44W TO 48N44W TO 54N54W TO
48N62W TO 42N51W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 50N56W TO 47N35W...AND WITHIN 90 NM EITHER SIDE OF A LINE
FROM 67N60W TO 63N52W.
.48 HOUR FORECAST DENSE FOG WITHIN 60 NM EITHER SIDE OF A LINE
FROM 55N44W TO 57N35W...AND FROM 54N TO 57N BETWEEN 58W AND 54W.
.FORECASTER CONNELLY. 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 1800 UTC SAT JUN 20.
24 HOUR FORECAST VALID 1800 UTC SUN JUN 21.
48 HOUR FORECAST VALID 1800 UTC MON JUN 22.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 15N55W TO 16N57W TO 16N59W TO 13N59W TO 13N57W TO
14N55W TO 15N55W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.24 HOUR FORECAST WITHIN 14N56W TO 15N58W TO 13N61W TO 12N60W TO
10N56W TO 10N54W TO 14N56W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN E SWELL.
.48 HOUR FORECAST WITHIN 14N52W TO 16N56W TO 15N61W TO 09N58W TO
08N50W TO 11N48W TO 14N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NE TO E SWELL.
.ATLC 03 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71W TO 20.5N72W
TO 20N72W TO 20N71.5W TO 20N70.5W TO 20.5N70.5W 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.
.24 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71W TO 20.5N72W TO
20N72W TO 20N71.5W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71W TO 20.5N72W TO
20N72W TO 20N71.5W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.CARIBBEAN WITHIN 15N71W TO 17N74W TO 17N77W TO 13N79W TO 11N78W
TO 11N70W TO 15N71W E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N70W TO 17N72W TO 16N79W TO 14N81W TO
11N80W TO 12N72W TO 16N70W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3.0 M.
.48 HOUR FORECAST WITHIN 15N68W TO 18N71W TO 17N77W TO 13N79W TO
11N78W TO 11N69W TO 15N68W E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0
M.
.CARIBBEAN WITHIN 17N85W TO 17N86W TO 17N87W TO 16N86W TO 16N85W
TO 17N85W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO 16N86W TO
16N85W TO 17N85W E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M.
.48 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO 16N86W TO
16N85W TO 17N85W E 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 AL. NATIONAL HURRICANE CENTER.