HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SUN JUN 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUN 21.
24 HOUR FORECAST VALID 1200 UTC JUN 22.
48 HOUR FORECAST VALID 1200 UTC JUN 23.
.WARNINGS.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 52N45W 987 MB MOVING NE 05 KT.
WITHIN 180 NM N AND NE OF A FRONT FROM LOW CENTER TO 52N42W TO
49N38W WINDS 30 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE WITHIN AN
AREA BOUNDED BY A LINE FROM 32N53W TO 45N35W TO 55N35W TO 56N54W
TO 38N66W TO 32N53W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 54N42W 993 MB. FROM 43N TO 60N BETWEEN 53W
AND 35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW E OF AREA 59N33W 1001 MB. FROM 48N TO 58N
BETWEEN 40W AND 35W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.LOW 64N57W 1002 MB DRIFTING S 05 KT. WITHIN 60 NM OF THE W
COAST OF GREENLAND FROM 62N TO 66N WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 62N57W 1008 MB. BETWEEN 90 NM AND 180 NM N
SEMICIRCLE...AND FROM 60N TO 62N BETWEEN 53W AND 49W...WINDS 20
TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 60N52W 1009 MB. WITHIN 300 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST WITHIN 180 NM EITHER SIDE OF A LINE FROM
31N75W TO 40N68W AREA OF S WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 52N
BETWEEN 55W AND 37W...AND FROM 63N TO 67N BETWEEN 59W AND THE W
COAST OF GREENLAND.
.24 HOUR FORECAST DENSE FOG FROM 54N TO 57N BETWEEN 45W AND
35W...BETWEEN A LINE FROM 58N59W TO 54N54W AND THE LABRADOR
COAST...AND N OF 65N W OF GREENLAND.
.48 HOUR FORECAST DENSE FOG NW OF A LINE FROM 38N74W TO 44N60W.
.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 1200 UTC SUN JUN 21.
24 HOUR FORECAST VALID 1200 UTC MON JUN 22.
48 HOUR FORECAST VALID 1200 UTC TUE JUN 23.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC 06 HOUR FORECAST WITHIN 21N70W TO 21N71W TO 20N72W TO
20N71W TO 20N70W TO 21N70W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 20N71W TO 21N72W TO 21N73W TO 20N73W TO
20N72W TO 20N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.ATLC WITHIN 16N56W TO 15N60W TO 13N61W TO 10N59W TO 09N56W TO
11N54W TO 16N56W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.24 HOUR FORECAST WITHIN 13N42W TO 17N48W TO 17N60W TO 12N61W TO
08N56W TO 08N47W TO 13N42W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 19N35W TO 18N60W TO 09N59W TO 08N43W TO
10N35W TO 19N35W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.CARIBBEAN WITHIN 14N72W TO 17N77W TO 16N81W TO 12N81W TO 10N77W
TO 12N73W TO 14N72W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 16N67W TO 18N72W TO 17N77W TO 10N76W TO
12N72W TO 11N65W TO 16N67W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M.
.48 HOUR FORECAST WITHIN 16N68W TO 18N73W TO 17N80W TO 15N81W TO
10N79W TO 12N69W TO 16N68W E WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0
M.
.CARIBBEAN WITHIN 18N85W TO 19N86W TO 19N88W TO 17N88W TO 16N86W
TO 16N85W TO 18N85W...INCLUDING THE GULF OF HONDURAS... E TO SE
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 18N85W TO 19N86W TO 19N88W TO 17N88W TO
16N86W TO 16N85W TO 18N85W...INCLUDING THE GULF OF HONDURAS... E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA 12 HOUR FORECAST WITHIN 23N88W TO 23N91W TO
22N92W TO 20N92W TO 22N88W TO 23N88W...INCLUDING WITHIN 60 NM OF
COAST OF CAMPECHE... E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 23N88W TO 23N91W TO 22N92W TO 20N92W TO
22N88W TO 23N88W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE... E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 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 AL. NATIONAL HURRICANE CENTER.