311 FZPN03 KNHC 180904 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC MON MAY 18 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. SECURITE E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 0600 UTC MON MAY 18. 24 HOUR FORECAST VALID 0600 UTC TUE MAY 19. 48 HOUR FORECAST VALID 0600 UTC WED MAY 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 30N116W TO 30N130W TO 25N128W TO 25N116W TO 30N116W NW TO N WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN N SWELL. ELSEWHERE WITHIN 26N113W TO 25N130W TO 28N130W TO 27N140W TO 15N140W TO 19N121W TO 26N113W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN N TO NE SWELL. REMAINDER OF AREA WITHIN 15N127W TO 15N140W TO 10N140W TO 10N124W TO 15N127W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL. .24 HOUR FORECAST WITHIN 29N114W TO 30N140W TO 11N140W TO 10N122W TO 20N112W TO 29N114W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN N SWELL. .48 HOUR FORECAST WITHIN 22N124W TO 30N119W TO 30N140W TO 08N140W TO 11N116W TO 17N115W TO 22N124W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL. .WITHIN 31N113W TO 31N114W TO 30N115W TO 30N114W TO 30N113W TO 31N113W...INCLUDING THE GULF OF CALIFORNIA... S TO SW WINDS 25 TO 35 KT. SEAS LESS THAN 2.5 M. .12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .WITHIN 12N86W TO 12N88W TO 11N89W TO 10N88W TO 10N87W TO 11N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO... E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .WITHIN 06N130W TO 07N140W TO 00N140W TO 03.4S120W TO 02S120W TO 03.4S104W TO 06N130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL. .24 HOUR FORECAST WITHIN 04N126W TO 09N122W TO 10N140W TO 00N140W TO 03.4S109W TO 00N109W TO 04N126W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL. .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. CONVECTION VALID AT 0090 UTC MON MAY 18... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 10N85W TO 06N95W. MONSOON TROUGH FROM 06N95W TO 05N140W. SCATTERED MODERATE FROM 08N TO 12N BETWEEN 90W AND 95W...AND FROM 07N TO 10N BETWEEN 128W TO 140W. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.  194 FZPN01 KWBC 180942 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 1030 UTC MON MAY 18 2026 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 ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM). SECURITE PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT TO 53N172E TO 50N180W TO 30N180W ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS SYNOPSIS VALID 0600 UTC MAY 18. 24 HOUR FORECAST VALID 0600 UTC MAY 19. 48 HOUR FORECAST VALID 0600 UTC MAY 20. .WARNINGS. ...GALE WARNING... .FROM 31N TO 42N BETWEEN 120W AND 127W AREA OF N TO NW WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ELSEWHERE S OF 44N BETWEEN 118W AND 132W AREA OF N TO NW WINDS TO 25 KT. SEAS TO 3.5 M. .24 HOUR FORECAST FROM 38N TO 42N BETWEEN 123W AND 127W AREA OF N TO NW WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE S OF 43N BETWEEN 116W AND 136W AREA OF N TO NW WINDS TO 25 KT. SEAS 2.5 TO 4 M. .48 HOUR FORECAST FROM 37N TO 42N BETWEEN 124W AND 127W AREA OF N TO NW WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE S OF 44N BETWEEN 121W AND 138W AREA OF N TO NE WINDS TO 25 KT. SEAS TO 3.5 M. ...GALE WARNING... .LOW 57N176W 980 MB MOVING S 10 KT. BETWEEN 120 NM AND 360 NM S...SE...AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M...HIGHEST SE OF CENTER. ELSEWHERE...EXCEPT WHERE OTHERWISE DESCRIBED...S OF THE ALEUTIANS ISLANDS N OF 40N BETWEEN 150W AND 180W...AND WITHIN THE BERING SEA W OF 163W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 49N158W. .24 HOUR FORECAST LOW 55N177W 989 MB. BETWEEN 240 NM AND 600 NM S QUADRANT WINDS 20 TO 30 KT. SEAS 3 TO 4.5 M. ELSEWHERE N OF 41N W OF 165W WINDS TO 25 KT. SEAS TO 3 M. .48 HOUR FORECAST LOW 58N174W 994 MB. CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 48N172W 1002 MB MOVING NE 35 KT. WITHIN 180 NM SE SEMICIRCLE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE CONDITIONS DESCRIBED WITH LOW 57N176W ABOVE. .06 HOUR FORECAST LOW 50N167W 995 MB. WITHIN 360 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. .24 HOUR FORECAST LOW 57N162W 994 MB. WITHIN 360 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE S OF ALASKA N OF 43N BETWEEN 142W AND 165W WINDS TO 25 KT. SEAS 2.5TO 3.5 M...HIGHEST S OF CENTER. .48 HOUR FORECAST LOW 62N176W 1002 MB. CONDITIONS DIMINISHED. ...GALE WARNING... .24 HOUR FORECAST LOW 38N172W 1010 MB. WITHIN 240 NM OF LOW CENTER WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE FROM 33N TO 40N W OF 167W WINDS TO 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST LOW ABSORBED BY NEW LOW 54N153W 1006 MB. WITHIN 240 NM EITHER SIDE OF A LINE FROM 56N144W TO 38N161W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 35N175W TO 35N160W TO 50N142W TO 60N142W TO 60N147W TO 54N160W TO 52N175W TO 35N175W WINDS TO 25 KT. SEAS TO 3 M. ...GALE WARNING... .42 HOUR FORECAST LOW W OF AREA 49N173E 989 MB. FROM 40N TO 52N BETWEEN 175W AND 176E WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M. .48 HOUR FORECAST LOW W OF AREA 50N176E 974 MB. WITHIN 420 NM E AND 600 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE FROM 40N TO 51N W OF 160W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M. .SYNOPSIS AND FORECAST. .LOW 59N139W 1012 MB MOVING E 10 KT. NE OF A FRONT FROM LOW CENTER TO 59N130W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE N OF 40N BETWEEN 132W AND 150W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M. .24 HOUR FORECAST LOW DISSIPATED INLAND AND ASSOCIATED CONDITIONS DIMINISHED. .48 HOUR FORECAST WITHIN 120 NM OF 49N127W AREAOF NW WINDS TO 25 KT. SEAS TO 2.5 M. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN THE BERING SEA W OF 165W...FROM 46N TO 50N W OF 174W...AND WITHIN 240 NM EITHER SIDE OF A LINE FROM 41N146W TO 57N134W. .24 HOUR FORECAST DENSE FOG FROM 52N TO 60N BETWEEN 152W AND 176E...AND 36N TO 51N BETWEEN 152W AND 170W. .48 HOUR FORECAST DENSE FOG WITHIN 300 NM EITHER SIDE OF A LINE FROM 61N147W TO 40N158W...N OF 57N W OF 165W...AND FROM 49N TO 55N W OF 173W. .FORECASTER ANDERSON. OCEAN PREDICTION CENTER. NWS NATIONAL HURRICANE CENTER MIAMI FL E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 0600 UTC MON MAY 18. 24 HOUR FORECAST VALID 0600 UTC TUE MAY 19. 48 HOUR FORECAST VALID 0600 UTC WED MAY 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 30N116W TO 30N130W TO 25N128W TO 25N116W TO 30N116W NW TO N WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN N SWELL. ELSEWHERE WITHIN 26N113W TO 25N130W TO 28N130W TO 27N140W TO 15N140W TO 19N121W TO 26N113W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN N TO NE SWELL. REMAINDER OF AREA WITHIN 15N127W TO 15N140W TO 10N140W TO 10N124W TO 15N127W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL. .24 HOUR FORECAST WITHIN 29N114W TO 30N140W TO 11N140W TO 10N122W TO 20N112W TO 29N114W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN N SWELL. .48 HOUR FORECAST WITHIN 22N124W TO 30N119W TO 30N140W TO 08N140W TO 11N116W TO 17N115W TO 22N124W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL. .WITHIN 31N113W TO 31N114W TO 30N115W TO 30N114W TO 30N113W TO 31N113W...INCLUDING THE GULF OF CALIFORNIA... S TO SW WINDS 25 TO 35 KT. SEAS LESS THAN 2.5 M. .12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .WITHIN 12N86W TO 12N88W TO 11N89W TO 10N88W TO 10N87W TO 11N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO... E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .WITHIN 06N130W TO 07N140W TO 00N140W TO 03.4S120W TO 02S120W TO 03.4S104W TO 06N130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL. .24 HOUR FORECAST WITHIN 04N126W TO 09N122W TO 10N140W TO 00N140W TO 03.4S109W TO 00N109W TO 04N126W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL. .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. CONVECTION VALID AT 0090 UTC MON MAY 18... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 10N85W TO 06N95W. MONSOON TROUGH FROM 06N95W TO 05N140W. SCATTERED MODERATE FROM 08N TO 12N BETWEEN 90W AND 95W...AND FROM 07N TO 10N BETWEEN 128W TO 140W. .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER. $$  238 FZNT01 KWBC 180944 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 1030 UTC MON MAY 18 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 0600 UTC MAY 18. 24 HOUR FORECAST VALID 0600 UTC MAY 19. 48 HOUR FORECAST VALID 0600 UTC MAY 20. .WARNINGS. ...GALE WARNING... .LOW E OF AREA NEAR 54N32W 982 MB MOVING E 20 KT. FROM 41N TO 59N E OF 42W...EXCEPT WITHIN 180 NM OF CENTER...WINDS 25 TO 40 KT. SEAS 3 TO 7 M...HIGHEST NEAR 46N35W. ELSEWHERE FROM 37N TO 59N E OF 48W WINDS TO 25 KT. SEAS 2.5 TO 5 M. .24 HOUR FORECAST COMPLEX LOW E OF AREA WITH MAIN CENTER NEAR 55N17W. FROM 50N TO 61N E OF 47W WINDS 20 TO 30 KT. SEAS TO 4 M. .48 HOUR FORECAST LOW MOVED WELL E OF AREA AND CONDITIONS MERGED WITH LOW 46N30W DESCRIBED BELOW. ...GALE WARNING... .06 HOUR FORECAST FROM 57N TO 62N BETWEEN 40W AND 47W WINDS 25 TO 35 KT. SEAS TO 3.5 M. .24 HOUR FORECAST CONDITIONS DIMINISHED AND MERGED WITH LOW 55N17W DESCRIBED ABOVE. ...GALE WARNING... .LOW 51N53W 997 MB MOVING SE 30 KT. FROM 38N TO 54N BETWEEN 48W AND 66W WINDS 20 TO 30 KT. SEAS TO 3 M. .18 HOUR FORECAST LOW 48N40W 999 MB. FROM 33N TO 50N E OF 58W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST LOW 44N38W 996 MB. WITHIN 540 NM S AND 600 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE. FROM 34N TO 50N E OF 55W WINDS TO 25 KT. SEAS TO 4 M. .48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER E OF AREA NEAR 46N30W 984 MB. FROM 31N TO 60N E OF 50W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST SW OF CENTER. .SYNOPSIS AND FORECAST. .LOW 57N58W 996 MB DRIFTING N 05 KT. WITHIN 240 NM NE SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 3 M. .24 HOUR FORECAST LOW 61N60W 999 MB WITHIN 180 NM OF CENTER WINDS 20 TO 30 KT. SEAS TO 2.5 M. .48 HOUR FORECAST CONDITIONS DIMINISHED. .48 HOUR FORECAST LOW WELL INLAND NEAR 53N76W 997 MB. FROM 37N TO 45N W OF 52W WINDS TO 25 KT. SEAS TO 2.5 M. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 52N BETWEEN 45W AND 56W. .24 HOUR FORECAST DENSE FOG FROM 39N TO 42N BETWEEN 68W AND 71W...AND FROM 56N TO 63N W OF 54W. .48 HOUR FORECAST DENSE FOG FROM 41N TO 46N BETWEEN 54W AND 65W...AND WITHIN 120 NM NE OF A LINE FROM 56N50W TO 60N54W. .FORECASTER POCHE. OCEAN PREDICTION CENTER. NWS NATIONAL HURRICANE CENTER MIAMI FL ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF AMERICA SYNOPSIS VALID 0600 UTC MON MAY 18. 24 HOUR FORECAST VALID 0600 UTC TUE MAY 19. 48 HOUR FORECAST VALID 0600 UTC WED MAY 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN 17N38W TO 20N44W TO 20N56W TO 14N61W TO 07N52W TO 09N37W TO 17N38W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL. .24 HOUR FORECAST WITHIN 18N50W TO 19N62W TO 14N60W TO 09N56W TO 07N42W TO 11N42W TO 18N50W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL. .48 HOUR FORECAST WITHIN 10N47W TO 09N53W TO 12N59W TO 09N56W TO 08N53W TO 08N50W TO 10N47W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0M IN NE TO E SWELL. .ATLC 15 HOUR FORECAST WITHIN 21N71W TO 21N72W TO 20N72W TO 20N70W TO 21N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST CONDITIONS IMPROVE. .CARIBBEAN WITHIN 14N71W TO 16N74W TO 16N77W TO 13N79W TO 12N78W TO 11N71W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST WITHIN 15N73W TO 16N77W TO 15N80W TO 11N81W TO 11N75W TO 13N71W TO 15N73W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .48 HOUR FORECAST WITHIN 15N73W TO 15N76W TO 13N80W TO 12N80W TO 11N76W TO 13N71W TO 15N73W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .CARIBBEAN WITHIN 17N86W TO 17N87W TO 17N88W TO 16N88W TO 16N85W TO 17N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .GULF OF AMERICA WITHIN 22N89W TO 24N90W TO 24N92W TO 22N91W TO 22N93W TO 20N92W TO 22N89W SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST CONDITIONS IMPROVE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .FORECASTER KONARIK. NATIONAL HURRICANE CENTER. $$