East and Central North Pacific High Seas Forecast

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FZPN02 KWBC 131125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC THU MAY 13 2021

CCODE/1:31:12:01:00/AOW+POR/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT 
TO 50N 160E

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0600 UTC MAY 13. 
24 HOUR FORECAST VALID 0600 UTC MAY 14.
48 HOUR FORECAST VALID 0600 UTC MAY 15.

.WARNINGS.

...GALE WARNING...
.LOW 49N175E 991 MB MOVING E 20 KT AND WILL TURN NE AFTER 12
HOURS WITH SECOND LOW 52N177E 992 MB MOVING NE 10 KT. WITHIN 240
NM SW SEMICIRCLE OF FIRST LOW WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
ALSO WITHIN 600 NM NE AND 840 NM SW QUADRANTS OF SECOND LOW WINDS
20 TO 30 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 300 NM NW AND 900 NM
SW QUADRANTS OF SECOND LOW WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FIRST LOW ABSORBED BY SECOND LOW 55N176W 987
MB. BETWEEN 240 NM AND 540 NM SE AND SW QUADRANTS WINDS 25 TO 35
KT. SEAS 9 TO 18 FT. ALSO WITHIN 360 NM NW...180 NM NE...660 NM
SE...780 NM S...AND 840 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8
TO 14 FT...HIGHEST SE...S...AND SW QUADRANTS. ELSEWHERE WITHIN
780 NM SE AND 960 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT IN
MIXED SWELL.
.48 HOUR FORECAST LOW 54N173W 994 MB. BETWEEN 180 NM AND 480 NM S
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 9 TO 18 FT. ALSO WITHIN 660 NM
SE AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT. ELSEWHERE
WITHIN 420 NM NW...360 NM NE...AND 840 NM SE...AND 720 NM SW
QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT IN MIXED SWELL.

...GALE WARNING...
.LOW 48N175W 996 MB MOVING NE 25 KT AND WILL TURN N AFTER 12
HOURS. WITHIN 360 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO
14 FT. ALSO WITHIN 540 NM SE AND S QUADRANTS WINDS 20 TO 30 KT.
SEAS TO 10 FT. ELSEWHERE WITHIN 240 NM N QUADRANT WINDS TO 25 KT.
SEAS TO 8 FT.
.24 HOUR FORECAST LOW 57N172W 989 MB. WITHIN 180 NM N AND 420 NM
E QUADRANTS AREA OF E TO SE WINDS 25 TO 40 KT. SEAS 9 TO 17 FT.
ELSEWHERE...EXCEPT AS DESCRIBED WITH LOW 55N176W ABOVE...WITHIN
240 NM N AND 540 NM E QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12
FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N173W
ABOVE.

...GALE WARNING...
.FROM 35N TO 46N BETWEEN 124W AND 129W AREA OF N WINDS 20 TO 30
KT. SEAS TO 11 FT. ALSO WITHIN 90 NM OF 49N128W AREA OF NW WINDS
20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 34N TO 50N BETWEEN 123W AND 131W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS TO 11 FT.
.42 HOUR FORECAST FROM 38N TO 43N E OF 126W AND WITHIN 60 NM OF
49N127W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST FROM 38N TO 43N E OF 126W AND WITHIN 60 NM OF
49N127W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM 33N TO
50N BETWEEN 121W AND 132W WINDS 20 TO 30 KT. SEAS TO 9 FT.

...GALE WARNING...
.LOW 56N146W 1014 MB MOVING N 10 KT AND WILL TURN W AFTER 12
HOURS. WITHIN 240 NM NE QUADRANT AND WITHIN 120 NM EITHER SIDE OF
A LINE FROM 57N139W TO 47N152W WINDS 20 TO 30 KT. SEAS TO 8 FT.
.18 HOUR FORECAST LOW 58N146W 1014 MB. WITHIN 60 NM EITHER SIDE
OF A LINE FROM 59N149W TO 60N145W TO 59N139W WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 58N149W 1014 MB. WITHIN 60 NM EITHER SIDE
OF A LINE FROM 58N138W TO 60N142W TO 60N146W WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT. ELSEWHERE WITHIN 90 NM EITHER SIDE OF A LINE
FROM 58N151W TO 60N143W TO 58N138W TO 54N135W WINDS 20 TO 30 KT.
SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH NEW LOW 58N151W 1007 MB.
WITHIN 240 NM SW AND NE AND 480 NM E QUADRANTS WINDS 20 TO 30 KT.
SEAS TO 8 FT.

...GALE WARNING...
.36 HOUR FORECAST FROM 34N TO 39N W OF 161E AREA OF SE TO S WINDS
25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW W OF AREA 37N157E 984 MB. WITHIN 360 NM NE
QUADRANT WINDS 35 TO 45 KT. SEAS 15 TO 21 FT. ALSO W OF A LINE
FROM 43N160E TO 38N172E TO 30N162E WINDS 25 TO 40 KT. SEAS 8 TO
15 FT. ELSEWHERE W OF A LINE FROM 44N160E TO 36N176E TO 30N164E
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

.SYNOPSIS AND FORECAST.

.24 HOUR FORECAST WITHIN AN AREA BOUNDED BY 53N158W TO 39N164W TO
50N144W TO 53N147W TO 53N158W AREA OF SW WINDS 20 TO 30 KT. SEAS
TO 9 FT.
.48 HOUR FORECAST WITHIN 120 NM EITHER SIDE OF A LINE FROM
56N134W TO 47N146W WINDS TO 25 KT. SEAS TO 9 FT.

.48 HOUR FORECAST S OF 32N BETWEEN 143W AND 152W AREA OF NE WINDS
TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 90 NM OF
51N151W...WITHIN AN AREA BOUNDED BY 51N177W TO 40N172W TO 46N161W
TO 49N162W TO 51N177W...FROM 56N TO 59N W OF 175W...AND WITHIN
120 NM NE OF A LINE FROM 53N167E TO 47N171E TO 47N176E.
.24 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY 54N156W TO
42N162W TO 49N150W TO 54N149W TO 54N156W...FROM 56N TO 59N
BETWEEN 168W AND 180W...AND FROM 49N TO 54N BETWEEN 175W AND
170E.
.48 HOUR FORECAST DENSE FOG FROM 52N TO 59N BETWEEN 134W AND
139W...FROM 49N TO 53N BETWEEN 168W AND 179E...AND WITHIN 90 NM
NW OF A LINE FROM 59N173W TO 58N178E TO 56N175E TO 55N174E.

.HIGH 48N135W 1029 MB MOVING SE 10 KT AND WILL TURN SW AFTER 12
HOURS.
.24 HOUR FORECAST HIGH 44N136W 1030 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 41N136W 1029 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 40N151W 1030 MB MOVING NE 05 KT.
.24 HOUR FORECAST HIGH 41N147W 1032 MB.
.48 HOUR FORECAST HIGH 40N145W 1033 MB.

.HIGH 32N170W 1025 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH 35N165W 1029 MB.

.HIGH 60N147W 1022 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH W OF AREA 38N155E 1028 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 38N166E 1029 MB.
.48 HOUR FORECAST HIGH 38N173W 1032 MB.

.48 HOUR FORECAST NEW HIGH 48N162E 1026 MB.

.FORECASTER FIGURSKEY. 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 THU MAY 13.
24 HOUR FORECAST VALID 0600 UTC FRI MAY 14.
48 HOUR FORECAST VALID 0600 UTC SAT MAY 15.

.WARNINGS.

...GALE WARNING...
.03 HOUR FORECAST WITHIN 15N94W TO 15N95W TO 16N95W TO 16N94W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 
KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS 20 TO 35 KT. SEAS
TO 8 FT.
.24 HOUR FORECAST WITHIN 14N94W TO 13N97W TO 15N97W TO 16N96W TO
16N94W TO 14N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 35 KT. SEAS 8 TO 11 FT.
.36 HOUR FORECAST WITHIN 13N95W TO 11N98W TO 12N100W TO 14N97W 
TO 16N94W TO 13N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST WITHIN 15N94W TO 14N95W TO 14N96W TO 16N95W TO
16N94W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 
20 TO 30 KT. SEAS 8 TO 9 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 10N87W TO 10N88W TO 11N87W TO 12N86W TO 11N86W TO
10N87W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 08N133W TO 06N140W TO 10N140W TO 11N128W TO 10N125W TO
08N133W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS.
SEAS LESS THAN 8 FT.

.WITHIN 03.4S104W TO 01S120W TO 03.4S120W TO 02N140W TO 02N122W
TO 03.4S104W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN S TO SW 
SWELL.
.24 HOUR FORECAST WITHIN 03.4S97W TO 03.4S120W TO 00N123W TO 
02N118W TO 03N110W TO 03.4S97W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 03.4S89W TO 03.4S103W TO 01S100W TO 
01N98W TO 01S96W TO 03.4S89W WINDS 20 KT OR LESS. SEAS 8 FT IN S 
TO SW SWELL.

.42 HOUR FORECAST WITHIN 30.5N114W TO 30N114W TO 30N114.5W TO
30.5N114.5W TO 31N114W TO 30.5N114W...INCLUDING THE GULF OF
CALIFORNIA...S TO SW WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0710 UTC THU MAY 13...

.SCATTERED MODERATE TO STRONG N OF 13N BETWEEN 91W AND 95W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N73W TO 07N80W TO 10N105W TO 08N125W. ITCZ
FROM 08N125W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG FROM
06N TO 09N BETWEEN 95W AND 98W...FROM 07N TO 11N BETWEEN 108W 
AND 113W...FROM 09N TO 12N BETWEEN 113W AND 118W...AND FROM 08N 
TO 10N BETWEEN 122W AND 124W. SCATTERED MODERATE FROM 07N TO 10N
BETWEEN 130W AND 140W.



.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC MAY 13 2021.
24 HOUR FORECAST VALID 0600 UTC MAY 14 2021.
48 HOUR FORECAST VALID 0600 UTC MAY 15 2021.

.WARNINGS. 

.NONE. 

.SYNOPSIS AND FORECAST. 

.COLD FRONT NEAR 30N174E MOVING SE SLOWLY. 
.24 HOUR FORECAST FRONT MERGED WITH FRONT DESCRIBED IMMEDIATELY 
BELOW. 

.COLD FRONT FROM 30N165E TO 28N160E MOVING SE 25 KT. 
.24 HOUR FORECAST FRONT FROM 30N178W TO 29N175E TO 28N166E. 
.48 HOUR FORECAST FRONT DISSIPATED. 

.48 HOUR FORECAST NEW COLD FRONT JUST W OF FORECAST AREA NEAR 
30N156E. WINDS S TO SW 20 TO 25 KT OVER FORECAST WATERS N OF 28N 
W OF 166E. 

.RIDGE FROM 30N174W TO 27N175E. 

.WINDS NE TO E 20 TO 25 KT WITHIN AN AREA BOUND BY 25N159W 
17N140W 06N140W 06N165W 20N175W 25N169W. 
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 25N TO 05N 
BETWEEN 168E AND 157W. 
.48 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 26N TO 06N 
BETWEEN 177E AND 154W. 

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA. 

.SEAS 8 FT OR LESS ENTIRE FORECAST AREA. 

.ITCZ FROM 06N140W TO 06N150W TO 07N160W TO 04N170W. SCATTERED 
MODERATE TSTMS WITHIN 180 NM EITHER SIDE OF CONVERGENCE LINE. 

.TROPICAL WAVE ALONG 01N178W 05N177W 09N175W MOVING W 20 KT. 
ISOLATED MODERATE TSTMS FROM 06N TO 00N BETWEEN 178E AND 170W. 


.FORECASTER BEDAL. HONOLULU HI.