FZPN01 KWBC 172150
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC THU OCT 17 2019 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 OCT 17. 
24 HOUR FORECAST VALID 1800 UTC OCT 18. 
48 HOUR FORECAST VALID 1800 UTC OCT 19. 

.WARNINGS. 

...STORM WARNING... 
.LOW 51N133W 983 MB MOVING NE 20 KT. OVER FORECAST WATERS WITHIN 
180 NM S AND 240 NM W QUADRANTS WINDS 40 TO 50 KT. SEAS 18 TO 30 
FT. ELSEWHERE WITHIN 600 NM S...420 NM SW AND 300 NM W QUADRANTS 
WINDS 25 TO 40 KT. SEAS 14 TO 28 FT. OTHERWISE FROM 38N TO 44N 
BETWEEN 124W AND 148W WINDS TO 25 KT. SEAS 10 TO 20 FT. 
.24 HOUR FORECAST LOW DISSIPATED INLAND. CONDITIONS DESCRIBED 
BELOW WITH LOW 58N145W. 

...STORM WARNING... 
.24 HOUR FORECAST NEW LOW 47N168W 1003 MB. WITHIN 720 NM S 
QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT. 
.36 HOUR FORECAST LOW 50N161W 992 MB. WITHIN 300 NM S AND SW 
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT. 
.48 HOUR FORECAST LOW 52N154W 982 MB. WITHIN 120 NM SW 
SEMICIRCLE WINDS 40 TO 50 KT. SEAS 10 TO 19 FT. ELSEWHERE WITHIN 
180 NM NE...420 NM SE...900 NM S AND 360 NM W QUADRANTS WINDS 25 
TO 40 KT. SEAS 8 TO 16 FT. 

...GALE WARNING... 
.COMPLEX LOW WITH MAIN CENTER 57N141W 977 MB MOVING NW 05 KT. 
OVER FORECAST WATERS WITHIN 300 NM S QUADRANT AND FROM 45N TO 
57N BETWEEN 140W AND 155W WINDS 25 TO 40 KT. SEAS 12 TO 25 FT. 
.24 HOUR FORECAST LOW 58N145W 980 MB. WITHIN 150 NM N AND NE... 
720 NM S AND 540 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 
22 FT. ELSEWHERE N OF 44N E OF 160W WINDS TO 25 KT. SEAS 9 TO 18 
FT...HIGHEST SE. 
.48 HOUR FORECAST LOW 57N146W 994 MB. E OF A LINE FROM 50N140W 
TO 56N150W TO 59N143W WINDS LESS THAN 25 KT. SEAS 8 TO 16 FT. 

...GALE WARNING... 
.LOW 57N162W 980 MB MOVING SE 15 KT. OVER FORECAST WATERS WITHIN 
300 NM S AND 240 NM SW QUADRANT WINDS 35 TO 45 KT. SEAS 12 TO 23 
FT. ELSEWHERE FROM 48N TO 58N BETWEEN 155W AND 173W WINDS 25 TO 
35 KT. SEAS 10 TO 20 FT. 
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED ABOVE 
WITH LOW 58N145W. 

...GALE WARNING... 
.OVER FORECAST WATERS FROM 31N TO 36N BETWEEN 119W AND 123W AREA 
OF NW WINDS TO 25 KT. SEAS 8 TO 13 FT. 
.06 HOUR FORECAST FROM 30N TO 38N BETWEEN 118W AND 125W AREA OF 
NW TO N WINDS 25 TO 35 KT. SEAS 8 TO 16 FT. 
.24 HOUR FORECAST FROM 30N TO 36N BETWEEN 119W AND 124W AREA OF 
NW TO N WINDS TO 25 KT. SEAS 12 TO 16 FT. ELSEWHERE FROM 30N TO 
38N E OF 151W WINDS LESS THAN 25 KT. SEAS 8 TO 14 FT IN NW SWELL.
.48 HOUR FORECAST FROM 30N TO 36N BETWEEN 119W AND 124W AREA OF 
NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. ELSEWHERE FROM 30N 
TO 38N E OF 146W WINDS LESS THAN 25 KT. SEAS TO 12 FT IN NW 
SWELL. 

...GALE WARNING... 
.42 HOUR FORECAST NEW LOW 49N125W 1002 MB. OVER FORECAST WATERS 
WITHIN 360 NM SW AND W QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 
17 FT.
.48 HOUR FORECAST LOW INLAND 49N124W 1006 MB. WITHIN 300 NM SW 
AND W QUADRANTS WINDS 20 TO 30 KT. SEAS 10 TO 16 FT. ELSEWHERE 
FROM 38N TO 50N E OF 135W WINDS LESS THAN 25 KT. SEAS 9 TO 15 FT.

.SYNOPSIS AND FORECAST. 

.LOW 58N178E 984 MB MOVING E 10 KT. OVER FORECAST WATERS FROM 
50N TO 58N BETWEEN 173W AND 172E WINDS 20 TO 30 KT. SEAS 9 TO 15 
FT. 
.24 HOUR FORECAST LOW 58N177W 986 MB. WITHIN 420 NM SE AND 240 
NM S QUADRANTS WINDS TO 25 KT. SEAS TO 11 FT. 
.48 HOUR FORECAST LOW 58N177W 990 MB. WITHIN 600 NM SW...AND 240 
NM W AND NW QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT. 

.LOW 44N160W 1015 MB MOVING E 35 KT. OVER FORECAST WATERS WITHIN 
420 NM SE AND S QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 
.24 HOUR FORECAST LOW 44N135W 1014 MB. WITHIN 300 NM S AND 480 
NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 12 TO 16 FT. 
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED ABOVE 
WITH LOW INLAND 49N124W. 

.LOW 48N168E 1007 MB MOVING NE 30 KT. OVER FORECAST WATERS 
WITHIN 300 NM E AND SE...AND 540 NM SW AND W QUADRANTS WINDS 20 
TO 30 KT. SEAS 8 TO 13 FT. 
.24 HOUR FORECAST LOW 53N173W 993 MB. WITHIN 180 NM E AND SE OF 
A FRONT TO EXTEND FROM 54N172W TO THE LOW TO 45N178W...AND FROM 
40N TO 50N BETWEEN 176W AND 160E WINDS 20 TO 30 KT. SEAS 8 TO 13 
FT. 
.48 HOUR FORECAST LOW 57N167W 991 MB. WITHIN 300 NM S AND N 
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. 

.48 HOUR FORECAST OVER FORECAST WATERS FROM 38N TO 47N BETWEEN 
176W AND 160E WINDS TO 25 KT. SEAS TO 12 FT.

.48 HOUR FORECAST NEW LOW 41N162W 1012 MB. WITHIN 360 NM E AND 
SE...AND 420 NM S QUADRANTS WINDS TO 25 KT. SEAS TO 11 FT. 

.HIGH 34N152W 1029 MB MOVING SE 10 KT. 
.24 HOUR FORECAST HIGH 34N148W 1029 MB. 
.48 HOUR FORECAST HIGH 33N145W 1029 MB. 

.HIGH 31N170E 1022 MB MOVING E 20 KT. 
.24 HOUR FORECAST HIGH DISSIPATED. 

.48 HOUR FORECAST HIGH 37N163E 1028 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 THU OCT 17.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 18.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 19.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION EIGHTEEN-E NEAR 10.1N 126.5W 1005 MB AT
2100 UTC OCT 17 MOVING W OR 260 DEG AT 2 KT. MAXIMUM SUSTAINED
WINDS 30 KT GUSTS 40 KT. WITHIN 120 NM SE SEMICIRCLE AND 75 NM NW
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.12 HOUR FORECAST TROPICAL STORM EIGHTEEN-E NEAR 10.3N 126.8W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 40 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 12 FT
OR GREATER WITHIN AREA OF TROPICAL STORM FORCE WINDS WITH SEAS TO
12 FT. ELSEWHERE WITHIN 120 NM SE SEMICIRCLE AND 60 NM NW 
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA 
WITHIN 12N126W TO 08N120W TO 07N130W TO 12N126W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN SW SWELL.
.24 HOUR FORECAST TROPICAL STORM EIGHTEEN-E NEAR 10.8N 126.8W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. LITTLE CHANGE IN AREA
OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.
ELSEWHERE WITHIN 10N123W TO 10N125W TO 11N127W TO 12N127W TO 
12N125W TO 10N123W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST TROPICAL DEPRESSION EIGHTEEN-E NEAR 11.4N 
126.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 60 NM
OF CENTER WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST TROPICAL DEPRESSION EIGHTEEN-E NEAR 11.6N 
125.9W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 60 NM
OF CENTER WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW EIGHTEEN-E NEAR 
11.1N 125.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW EIGHTEEN-E NEAR 
10.9N 125.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW EIGHTEEN-E NEAR 
11.7N 124.9W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.DISSIPATING COLD FRONT FROM 30N123W TO 28N137W. WITHIN 27N140W
TO 30N140W TO 30N129W TO 27N140W WINDS 20 KT OR LESS. SEAS 8 TO 
10 FT IN NW TO N SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. WITHIN 25N120W TO 
20N133W TO 14N140W TO 30N140W TO 30N116W TO 25N120W WINDS 20 KT 
OR LESS. SEAS 8 TO 14 FT IN NW TO N SWELL...HIGHEST NEAR 30N122W.
.48 HOUR FORECAST N OF 28N BETWEEN 118W AND 125W NW TO N WINDS 20
TO 25 KT. SEAS 12 TO 14 FT IN NW TO N SWELL. ELSEWHERE WITHIN 
20N115W TO 12N128W TO 13N140W TO 30N140W TO 30N116W TO 20N115W 
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW TO N SWELL.

.TROUGH W OF 140W. WITHIN 16N138W TO 16N140W TO 20N140W TO 
19N139W TO 17N138W TO 16N138W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN N TO NE SWELL.
.24 HOUR FORECAST CONDITIONS MERGED.

.WITHIN 10N98W TO 08N109W TO 10N109W TO 13N104W TO 14N98W TO
10N98W SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST WITHIN 10N112W TO 10N119W TO 12N114W TO 
14N107W TO 12N103W TO 10N112W SW WINDS 20 TO 25 KT. SEAS 8 TO 10
FT.
.48 HOUR FORECAST WITHIN 11N103W TO 10N113W TO 14N111W TO 
13N106W TO 13N100W TO 11N103W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN S TO SW SWELL.

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

CONVECTION VALID AT 2100 UTC THU OCT 17...

.TROPICAL DEPRESSION EIGHTEEN-E...SCATTERED MODERATE TO STRONG 
WITHIN 240 NM SE SEMICIRCLE AND WITHIN 150 NM NW SEMICIRCLE.

.LOW PRES NEAR 19N105W...SCATTERED MODERATE ISOLATED STRONG 
WITHIN 270 NM S QUADRANT.

.TROPICAL WAVE NEAR 79W...SCATTERED MODERATE N OF 05N E OF 81W 
AND ALSO FROM 02N TO 05N BETWEEN 79W AND 83W.

.TROPICAL WAVE NEAR 120W FROM 02N TO 15N...SCATTERED MODERATE 
FROM 08N TO 10N BETWEEN 118W AND 120W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N86W TO 16N97W TO LOW PRESSURE NEAR 
14N114W TO 10N123W THEN RESUMES NEAR 10N131W TO 10N140W. 
SCATTERED MODERATE ISOLATED STRONG WITHIN 210 NM S OF MONSOON 
TROUGH BETWEEN 92W AND 104W AND ALSO FROM 06N TO 13N BETWEEN 
130W AND 135W. SIMILAR CONVECTION WITHIN 120 NM W QUADRANT OF 
LOW NEAR 14N114W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.