NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC (6:30pm ET) SAT MAY 16 2026

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC MAY 16.
24 HOUR FORECAST VALID 1800 UTC MAY 17.
48 HOUR FORECAST VALID 1800 UTC MAY 18.

LOW: 50N52W 990 MB MOVING NE 20 KT. FROM 36N TO 53N BETWEEN 36W AND 62W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
24 HOUR FORECAST: LOW 53N40W 986 MB. FROM 43N TO 48N E OF 44W WINDS 35 TO 45 KT. SEAS 4 TO 8 M. ELSEWHERE FROM 37N TO 57N E OF 54W WINDS 25 TO 40 KT. SEAS 3 TO 6 M..
HIGH: EST NEAR 43N45W.
48 HOUR FORECAST: COMPLEX LOW WITH MAIN CENTER JUST E OF AREA NEAR 54N33W 985 MB. FROM 49N TO 63N E OF 47W WINDS 25 TO 40 KT. SEAS 3 TO 5 M..
HIGH: EST NEAR 50N35W.

COMPLEX LOW: WITH MAIN CENTER NEAR 62N36W 990 MB DRIFTING SW 05 KT. N OF 57N E OF 44W WINDS 25 TO 35 KT. SEAS 3.5 TO 5.5 M. ELSEWHERE E OF A LINE FROM 66N35W TO 59N45W TO 52N35W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
24 HOUR FORECAST: COMPLEX LOW WITH MAIN CENTER NEAR 62N40W 1002 MB. N OF 63N E OF GREENLAND WINDS TO 25 KT. SEAS TO 3.5 M.
48 HOUR FORECAST: LOW DISSIPATED AND CONDITIONS DIMINISHED.

24 HOUR FORECAST: COMPLEX LOW INLAND FROM 39N TO 61N W OF 55W WINDS 25 TO 35 KT. SEAS TO 2.5 M.
48 HOUR FORECAST: COMPLEX LOW WITH MAIN CENTER 49N46W 998 MB. WITHIN 600 NM SE AND 660 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

SYNOPSIS AND FORECAST

48 HOUR FORECAST: LOW 62N64W 1003 MB. WITHIN 180 NM E SEMICIRCLE WINDS TO 25 KT. SEAS LESS THAN 2.5 M.

VISABILITY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 52N BETWEEN 38W AND 56W...N OF 61N BETWEEN 38W AND 42W...AND FROM 58N TO 59N W OF 61W.
24 HOUR FORECAST: DENSE FOG FROM 51N TO 55N BETWEEN 43W AND 47W...WITHIN 60 NM NW OF A LINE FROM 60N42W TO 65N38W TO 65N35W...AND FROM 60N TO 61N W OF 57W.
48 HOUR FORECAST: DENSE FOG FROM 58N TO 65N BETWEEN 61W AND 65W...N OF 65N W OF GREENLAND...AND FROM 49N TO 51N W OF 51W.

.FORECASTER HYDE. OCEAN PREDICTION CENTER.

NWS