High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 212212
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED FEB 21 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SYNOPSIS VALID 1800 UTC FEB 21.
24 HOUR FORECAST VALID 1800 UTC FEB 22.
48 HOUR FORECAST VALID 1800 UTC FEB 23.

.WARNINGS.

...STORM WARNING...
.LOW 43N167E 1005 MB MOVING N 25 KT. FRONT EXTENDS FROM LOW TO
40N171E TO 35N168E TO 33N160E. WITHIN 300 NM N AND 420 NM NE
QUADRANTS AND N OF 37N WITHIN 300 NM E AND SE OF FRONT WINDS 25
TO 35 KT. SEAS 8 TO 14 FT. ALSO S OF 37N WITHIN 180 NM SE OF
FRONT WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 51N173E 1007 MB. FRONT TO EXTEND FROM
54N168E TO LOW TO 46N179E TO 40N175E. N OF 47N WITHIN 360 NM N
AND E OF FRONT WINDS 25 TO 40 KT. SEAS 8 TO 15 FT. ELSEWHERE S
OF 47N WITHIN 360 NM E AND SE OF FRONT WINDS 25 TO 35 KT. SEAS 8
TO 12 FT.
.48 HOUR FORECAST LOW W OF AREA NEAR 58N176E 988 MB. FRONT TO
EXTEND FROM LOW TO 58N172W TO 53N168W TO 46N170W. WITHIN 180 NM
N OF FRONT W OF 170W AND WITHIN 120 NM SE AND S QUADRANTS WINDS
40 TO 50 KT. SEAS 13 TO 22 FT. ELSEWHERE WITHIN 300 NM N AND E
OF FRONT AND N OF 47N W OF FRONT WINDS 25 TO 40 KT. SEAS 8 TO 15
FT N AND E OF FRONT...AND 12 TO 24 FT W OF FRONT.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 60N147W 1015 MB. WITHIN 480 NM S AND
600 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT IN THE GULF
OF ALASKA AND 8 TO 12 FT IN THE BERING SEA.
.36 HOUR FORECAST LOW 59N140W 1003 MB. WITHIN 300 NM S AND 420
NM W QUADRANTS WINDS 35 TO 50 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW 58N135W 1005 MB. WITHIN 720 NM S AND 600
NM W QUADRANTS WINDS 30 TO 40 KT. SEAS 10 TO 20 FT. ELSEWHERE N
OF 46N E OF A LINE FROM 46N131W TO 57N155W WINDS 20 TO 30 KT.
SEAS 9 TO 15 FT.

...GALE WARNING...
.LOW 55N179W 1002 MB MOVING NE 35 KT. WITHIN 240 NM SE
SEMICIRCLE WINDS 30 TO 40 KT. SEAS 11 TO 19 FT. ELSEWHERE OVER
ICE FREE FORECAST WATERS WITHIN 480 NM E...420 NM S...300 NM
W...AND 240 NM N QUADRANTS WINDS 20 TO 30 KT. SEAS 10 TO 20
FT...HIGHEST NEAR 50N179W.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS ABSORBED BY LOW
68N165W.

...GALE WARNING...
.LOW 51N164E 1008 MB MOVING NW 20 KT. WITHIN 240 NM E SEMICIRCLE
WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW AND CONDITIONS WELL W OF AREA.

...GALE WARNING...
.FROM 49N TO 54N BETWEEN 129W AND 134W AREA OF NW TO N WINDS 20
TO 30 KT. SEAS BUILDING TO 9 FT.
.12 HOUR FORECAST FROM 43N TO 52N BETWEEN 125W AND 132W AREA OF
NW TO N WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST FROM 37N TO 45N E OF 130W AREA OF N TO NW
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST FROM 31N TO 40N BETWEEN 117W AND 126W AREA OF
N TO NW WINDS 20 TO 30 KT. SEAS 9 TO 13 FT.

...GALE WARNING...
.06 HOUR FORECAST LOW 36N160E 1007 MB. OVER FORECAST WATERS
WITHIN 360 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 40N174E 1014 MB. WITHIN 420 NM S
SEMICIRCLE AND WITHIN 480 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS
8 TO 12 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
58N176E DESCRIBED ABOVE.

...GALE WARNING...
.12 HOUR FORECAST LOW W OF AREA NEAR 50N158E 996 MB. OVER
FORECAST WATERS N OF 46N W OF 162W WINDS 25 TO 35 KT. SEAS 10 TO
16 FT.
.24 HOUR FORECAST LOW 51N162E 1000 MB. WITHIN 240 NM S
SEMICIRCLE WINDS 30 TO 40 KT. SEAS 12 TO 23 FT. ELSEWHERE N OF
44N W OF A LINE FROM 45N175E TO 54N168E WINDS 20 TO 30 KT. SEAS
9 TO 16 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS ABSORBED BY LOW
58N176E DESCRIBED ABOVE.

...GALE WARNING...
.36 HOUR FORECAST LOW W OF AREA NEAR 37N151E 1010 MB. OVER
FORECAST WATERS FROM 31N TO 39N W OF 164E WINDS 25 TO 35 KT.
SEAS BUILDING TO 11 FT.
.48 HOUR FORECAST LOW W OF AREA NEAR 40N155E 1004 MB. FROM 34N
TO 43N W OF 168E WINDS 35 TO 45 KT. SEAS 9 TO 16 FT. ELSEWHERE
FROM 31N TO 45N W OF 171E WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.LOW 30N162W 1014 MB. OVER FORECAST WATERS S OF 35N BETWEEN 150W
AND 164W WINDS 20 TO 30 KT. SEAS 10 TO 14 FT.
.24 HOUR FORECAST LOW 31N166W 1018 MB. WITHIN 360 NM N
SEMICIRCLE AND FROM 30N TO 34N BETWEEN 149W AND 159W WINDS 20 TO
30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 32N171W 1019 MB. WITHIN 300 NM NW QUADRANT
AND FROM 30N TO 36N BETWEEN 152W AND 161W WINDS TO 25 KT. SEAS
TO 11 FT.

.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE
FORECAST WATERS N OF 61N.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER ICE FREE
FORECAST WATERS N OF 57N BETWEEN 164W AND 170W...WITHIN 120 NM
OF 48N158W...AND WITHIN 180 NM W OF A LINE FROM 52N166W TO
42N163W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM W OF A LINE FROM
43N164W TO 49N158W AND WITHIN AREA BOUNDED BY 40N179E TO 46N171W
TO 48N179E TO 40N179E.
.48 HOUR FORECAST DENSE FOG WITHIN AREA BOUNDED BY 35N171W TO
34N158W TO 40N155W TO 46N170W TO 35N171W AND WITHIN AREA BOUNDED
BY 47N167W TO 47N154W TO 56N164W TO 47N167W.

.HIGH 50N148W 1041 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 46N145W 1042 MB.
.48 HOUR FORECAST HIGH 44N146W 1043 MB.

.HIGH 45N178W 1031 MB MOVING NE 30 KT.
.24 HOUR FORECAST HIGH 53N167W 1040 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST HIGH 44N176E 1038 MB.

.FORECASTER HUFFMAN. OCEAN PREDICTION CENTER.

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 1800 UTC WED FEB 21.
24 HOUR FORECAST VALID 1800 UTC THU FEB 22.
48 HOUR FORECAST VALID 1800 UTC FRI FEB 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 14N TO 26N W OF 123W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO
11 FT. ELSEWHERE W OF LINE FROM 30N116W TO 22N111W TO 09N126W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW TO N SWELL.
.24 HOUR FORECAST FROM 10N TO 24N W OF 115W NE TO E WINDS 20 TO
25 KT. SEAS 9 TO 12 FT. ELSEWHERE W OF LINE FROM 30N137W TO
18N107W TO 08N122W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW TO
N SWELL.
.48 HOUR FORECAST FROM 10N TO 22N W OF 118W NE TO E WINDS 20 TO
25 KT. SEAS 10 TO 12 FT. ELSEWHERE W OF LINE FROM 30N140W TO
15N105W TO 05N113W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN
PRIMARILY NW SWELL.

.WITHIN 45 NM OF LINE FROM 11N86W TO 10.5N92W...INCLUDING GULF
OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST N OF 29N BETWEEN 116W AND 126W WINDS 20 KT OR
LESS. SEAS 8 FT IN NW SWELL.

.42 HOUR FORECAST N OF 14N BETWEEN 94W AND 95.5W...INCLUDING THE
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST 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 2100 UTC WED FEB 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 09N83W TO 02N94W TO 02N102W. ITCZ FROM 02N102W TO
03N120W TO 06N130W TO 08N140W. NO SIGNIFICANT CONVECTION.

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.



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