NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC (6:30am ET) WED APR 22 2026

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

SECURITE

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0600 UTC APR 22.
24 HOUR FORECAST VALID 0600 UTC APR 23.
48 HOUR FORECAST VALID 0600 UTC APR 24.

24 HOUR FORECAST: NEW LOW 39N70W 1010 MB. WITHIN 300 NM SE AND S QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3 M.
42 HOUR FORECAST: LOW 40N58W 978 MB. WITHIN 90 NM W AND SW QUADRANTS WINDS 45 TO 60 KT. SEAS 3 TO 5.5 M.
48 HOUR FORECAST: LOW 41N56W 971 MB. WITHIN 90 NM W SEMICIRCLE WINDS 50 TO 65 KT. SEAS 5 TO 7 M. ALSO WITHIN 120 NM OF LOW CENTER WINDS 35 TO 50 KT. SEAS 4 TO 6.5 M. ELSEWHERE WITHIN 240 NM NE...420 NM SE...540 NM SW...AND 180 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. OTHERWISE S OF 44N BETWEEN 50W AND 68W WINDS TO 25 KT. SEAS TO 3 M.

LOW: 42N53W 1004 MB MOVING N 15 KT. WITHIN 240 NM W SEMICIRCLE WINDS 30 TO 45 KT. SEAS 4 TO 5.5 M. ELSEWHERE WITHIN 420 NM NW OF A FRONT FROM 47N51W TO LOW CENTER TO 31N60W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
24 HOUR FORECAST: LOW 50N53W 1002 MB. WITHIN 420 NM OF LOW CENTER WINDS 20 TO 30 KT. SEAS TO 3 M.
48 HOUR FORECAST: LOW 49N48W 1002 MB. CONDITIONS DIMINISHED.

LOW: 66N57W 1015 MB MOVING N 15 KT. WITHIN 120 NM W GREENLAND COAST BETWEEN 46W AND 55W WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
24 HOUR FORECAST: LOW WELL N OF AREA AND ASSOCIATED CONDITIONS DIMINISHED.

COMPLEX LOW: E OF AREA WITH MAIN CENTER 45N23W 975 MB MOVING W 05 KT. FROM 33N TO 51N E OF 38W WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE S OF 61N E OF 45W WINDS TO 25 KT. SEAS TO 2.5 M.
24 HOUR FORECAST: LOW E OF AREA 45N25W 979 MB. WITHIN 720 NM W SEMICIRCLE WINDS 20 TO 30 KT. SEAS 3 TO 5 M. ELSEWHERE S OF 56N E OF 42W WINDS TO 25 KT. SEAS TO 3 M.
48 HOUR FORECAST: LOW E OF AREA 51N30W 992 MB. BETWEEN 300 NM AND 780 NM NW QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. ELSEWHERE FROM 50N TO 60N E OF 51W WINDS TO 25 KT. SEAS TO 3 M.

24 HOUR FORECAST: NEW LOW 41N45W 1004 MB. WITHIN 300 NM W AND 540 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE S OF 46N BETWEEN 46W AND 60W WINDS TO 25 KT. SEAS TO 3 M.
48 HOUR FORECAST: LOW 40N36W 999 MB. WITHIN 480 NM S SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE S OF 50N E OF 50W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.

SYNOPSIS AND FORECAST
VISABILITY OCCASIONALLY LESS THAN 1 NM N OF 41N BETWEEN 46W AND 59W.
24 HOUR FORECAST: DENSE FOG WITHIN 240 NM EITHER SIDE OF A LINE FROM 42N48W TO 53N47W TO 65N50W.
48 HOUR FORECAST: DENSE FOG WITHIN 240 NM EITHER SIDE OF A LINE FROM 47N67W TO 36N55W...FROM 50N TO 57N E OF 43W...AND FROM 58N TO 65N BETWEEN 45W AND 53W.

.LIGHT FREEZING SPRAY WITHIN THE GULF OF SAINT LAWRENCE N OF 49N...AND W OF A LINE FROM 54N52W TO 59N47W TO 64N56W.
24 HOUR FORECAST: LIGHT FREEZING SPRAY NW OF A LINE FROM 59N59W TO 65N52W.
48 HOUR FORECAST: LIGHT FREEZING SPRAY NW OF A LINE FROM 61N57W TO 65N52W.

.FORECASTER ANDERSON. OCEAN PREDICTION CENTER.

NWS