High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 211652 AAA
HSFEP1

HIGH SEAS FORECAST...AMENDED
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED FEB 21 2018

ADDED TEHUANTEPEC WINDS AT 48 HOURS IN PART II BELOW

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC FEB 21.
24 HOUR FORECAST VALID 1200 UTC FEB 22.
48 HOUR FORECAST VALID 1200 UTC FEB 23.

.WARNINGS.

...STORM WARNING...
.24 HOUR FORECAST OVER FORECAST WATERS FROM 53N TO 58N BETWEEN
146W AND 159W AREA OF SW WINDS 20 TO 30 KT. SEAS TO 9 FT.
.36 HOUR FORECAST NEW LOW 60N144W 1007 MB. WITHIN 240 NM SW AND
W QUADRANTS WINDS 40 TO 50 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST LOW 59N137W 1006 MB. WITHIN 360 NM S AND 480
NM W QUADRANTS WINDS 35 TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE N
OF A LINE FROM 47N128W TO 47N136W TO 56N154W WINDS 25 TO 35 KT.
SEAS 9 TO 15 FT.

...GALE WARNING...
.LOW 53N178E 996 MB MOVING NE 40 KT. WITHIN 240 NM S SEMICIRCLE
WINDS 35 TO 45 KT. SEAS 15 TO 22 FT. ELSEWHERE OVER ICE FREE
FORECAST WATERS WITHIN 600 NM NE...420 NM SE...300 NM SW...AND
360 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST LOW 65N169W 1002 MB. NE OF A LINE FROM 54N168W
TO 60N178W WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 38N169E 1009 MB MOVING NE 25 KT. FRONT EXTENDS FROM LOW TO
31N160E. OVER FORECAST WATERS WITHIN 300 NM E AND SE QUADRANTS
AND WITHIN 120 NM SE OF FRONT WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 48N175E 1011 MB. FRONT TO EXTEND FROM
52N166E TO LOW TO 44N178E TO 36N170E. N OF 44N WITHIN 360 NM N
AND E OF FRONT WINDS 25 TO 40 KT. SEAS 8 TO 15 FT. ELSEWHERE S
OF 44N WITHIN 240 NM E AND SE OF FRONT WINDS 25 TO 35 KT. SEAS 8
TO 12 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS NW OF AREA.

...GALE WARNING...
.LOW 41N163E 1007 MB MOVING N 25 KT. WITHIN 240 NM SE QUADRANT
WINDS 30 TO 40 KT. SEAS 9 TO 14 FT. ELSEWHERE FROM 38N TO 47N
BETWEEN 162E AND 169E WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW W OF AREA NEAR 52N166E 1000 MB. ASSOCIATED
CONDITIONS DESCRIBED WITH LOW 48N175E ABOVE.

...GALE WARNING...
.12 HOUR FORECAST OVER FORECAST WATERS FROM 45N TO 53N BETWEEN
126W AND 133W AREA OF NW TO N WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 40N TO 48N E OF 131W AREA OF N TO NW
WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST FROM 31N TO 41N BETWEEN 117W AND 127W AREA OF
N TO NW WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW W OF AREA NEAR 51N160E 998 MB. OVER
FORECAST WATERS WITHIN 240 NM S SEMICIRCLE WINDS 30 TO 45 KT.
SEAS 11 TO 22 FT. ELSEWHERE N OF 45N W OF 167E WINDS 20 TO 30
KT. SEAS 9 TO 14 FT.
.48 HOUR FORECAST LOW W OF AREA NEAR 56N163E 998 MB. N OF 47N W
OF 170E WINDS 30 TO 45 KT. SEAS 12 TO 22 FT. ELSEWHERE N OF 46N
W OF 177E WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW 38N166E 1014 MB. OVER FORECAST WATERS FROM
33N TO 40N BETWEEN 161E AND 166E WINDS 25 TO 35 KT. SEAS TO 10
FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
56N177W DESCRIBED BELOW.

...GALE WARNING...
.48 HOUR FORECAST LOW 56N177W 1008 MB. FRONT TO EXTEND FROM
58N177E TO LOW TO 49N173W TO 43N176W. N OF ALEUTIAN ISLANDS
WITHIN 240 NM N AND E OF FRONT AND S OF ALEUTIAN ISLANDS WITHIN
300 NM E OF FRONT WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.LOW 39N125W 1019 MB MOVING SE 10 KT. FROM 38N TO 43N BETWEEN
125W AND 129W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 35N122W 1020 MB. FROM 35N TO 40N E OF 128W
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.LOW S OF AREA NEAR 29N160W 1013 MB. OVER FORECAST WATERS S OF
34N BETWEEN 151W AND 163W WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.
.24 HOUR FORECAST LOW 31N165W 1018 MB. WITHIN 420 NM N AND 780
NM E QUADRANTS WINDS TO 25 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 34N169W 1018 MB. WITHIN 300 N SEMICIRCLE
AND FROM 30N TO 36N BETWEEN 150W AND 161W WINDS 20 TO 30 KT.
SEAS TO 11 FT.

.48 HOUR FORECAST OVER FORECAST WATERS S OF A LINE FROM 41N160E
TO 36N172E AREA OF E TO SE WINDS 20 TO 30 KT. SEAS TO 10 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 48N
BETWEEN 146W AND 152W...FROM 42N TO 48N BETWEEN 163W AND
169W...AND FROM 58N TO 62N BETWEEN 165W AND 171W.
.24 HOUR FORECAST DENSE FOG FROM 48N TO 52N BETWEEN 151W AND
157W...WITHIN 120 NM OF 44N165W...AND WITHIN 90 NM OF 36N159W.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 47N BETWEEN 148W AND
151W...FROM 35N TO 41N BETWEEN 157W AND 168W...AND FROM 44N TO
51N BETWEEN 168W AND 176W.

.HIGH 38N141W 1035 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 51N152W 1040 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 47N145W 1042 MB.
.48 HOUR FORECAST HIGH 43N143W 1041 MB.

.HIGH 42N178W 1028 MB MOVING NE 25 KT.
.24 HOUR FORECAST HIGH 51N170W 1037 MB.
.48 HOUR FORECAST HIGH 59N161W 1035 MB.

.48 HOUR FORECAST HIGH 43N169E 1037 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 1200 UTC WED FEB 21.
24 HOUR FORECAST VALID 1200 UTC THU FEB 22.
48 HOUR FORECAST VALID 1200 UTC FRI FEB 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 17N TO 25N W OF 125W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO
11 FT. ELSEWHERE W OF LINE FROM 30N116W TO 23N112W TO 10N125W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW TO N SWELL.
.24 HOUR FORECAST FROM 12N TO 24N W OF 125W NE TO E WINDS 20 TO
25 KT. SEAS 10 TO 12 FT. ELSEWHERE W OF LINE FROM 30N130W 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 21N W OF 120W NE TO E WINDS 20 TO
25 KT. SEAS 10 TO 12 FT. ELSEWHERE W OF LINE FROM 30N135W TO
13N107W TO 05N120W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN
PRIMARILY NW SWELL.

.WITHIN 60 NM OF LINE FROM 11N86W TO 10.5N91W...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 118W AND 124W WINDS 20 KT OR
LESS. SEAS 8 FT IN NW SWELL.

.48 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.

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

CONVECTION VALID AT 1515 UTC WED FEB 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 09N83W TO 02N94W TO 02N102W. ITCZ FROM 02N102W TO
03N120W TO 07N130W TO 08N140W. NO SIGNIFICANT CONVECTION.

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.


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