000
FZPN03 KNHC 231548
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC TUE OCT 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1200 UTC TUE OCT 23.
24 HOUR FORECAST VALID 1200 UTC WED OCT 24.
48 HOUR FORECAST VALID 1200 UTC THU OCT 25.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE WILLA NEAR 21.4N 106.9W 966 MB AT 1500 UTC OCT 23 
MOVING NNE OR 015 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 110 KT 
GUSTS 135 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE 
QUADRANT...100 NM SE QUADRANT...80 NM SW QUADRANT...AND 90 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM W SEMICIRCLE... 
120 NM NE QUADRANT AND 150 NM SE QUADRANT WITH SEAS TO 32 FT. 
ELSEWHERE WITHIN 120 NM NE AND 180 NM SW SEMICIRCLES WINDS 20 TO 
33 KT. SEAS 10 TO 18 FT. REMAINDER OF AREA FROM 11N TO 24N E OF 
114W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM WILLA WELL INLAND NEAR 24.9N 
102.9W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL 
STORM FORCE WINDS WITHIN 50 NM E SEMICIRCLE AND 30 NM W 
SEMICIRCLE. OVER FORECAST WATERS FROM 21N TO 23N WITHIN 60 NM OF 
MEXICAN COAST SW TO W WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. 
ELSEWHERE FROM 19N TO 23N E OF 109W TO MEXICAN COAST WINDS 20 KT 
OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW WILLA NEAR 26.7N 
99.8W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. OVER FORECAST 
WATERS N OF 20N E OF 110W WINDS 20 KT OR LESS. SEAS LESS THAN 8 
FT.
.48 HOUR FORECAST...DISSIPATED.

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.    

.POST-TROPICAL CYCLONE VICENTE NEAR 18.4N 102.4W 1008 MB AT 1500 
UTC OCT 23 MOVING NNW OR 330 DEG AT 10 KT. MAXIMUM SUSTAINED 
WINDS 25 KT GUSTS 35 KT. WITHIN 60 NM OF CENTER EXCEPT 0 NM NW 
QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.12 HOUR FORECAST POST-TROPICAL VICENTE INLAND NEAR 19.5N 103.2W.
MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. OVER WATERS WITHIN 
120 NM S SEMICIRCLE WINDS 20 KT GUSTS 30 KT. SEAS 8 TO 11 FT IN 
MIXED NW AND SW SWELL.
.24 HOUR FORECAST...DISSIPATED. CONDITIONS TO MERGE WITH SEAS 
FROM WILLA.

.WITHIN 30 NM OF LINE FROM 16N95W TO 14.5N95W...INCLUDING THE 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.LOW PRES 12.5N116W 1008 MB MOVING NNW 3 KT. WITHIN 60 NM SE 
QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 60 
NM NW AND 210 NM SE SEMICIRCLE WINDS 20 KT OR LESS. SEAS TO 8 FT 
IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES NEAR 13N116.5W 1008 MB. WITHIN 60 NM 
NW AND 150 NM SE SEMICIRCLE WINDS 20 KT OR LESS. SEAS 8 FT IN 
MIXED SWELL.  
.48 HOUR FORECAST LOW PRES NEAR 14N117.5W 1008 MB. WITHIN 120 N 
NW SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 

.FROM 03N TO 07N BETWEEN 93W AND 108W WINDS 20 KT OR LESS. SEAS 
8 FT IN MIXED SW SWELL. S OF 00N BETWEEN 94W AND 118W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN SW SWELL.  
.24 HOUR FORECAST FROM 04N TO 06N BETWEEN 91W AND 100W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN MIXED SW SWELL. S OF 01S W OF 116W 
WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 10N TO 13N W OF 133W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 
9 FT. ELSEWHERE FROM 09N TO 16N W OF 135W WINDS 20 KT OR LESS. 
SEAS TO 8 FT IN MIXED SWELL. 
.24 HOUR FORECAST FROM 10N TO 14N W OF 134W WINDS 20 KT OR LESS. 
SEAS TO 8 FT. 
.48 HOUR FORECAST FROM 10N TO 27N W OF 135W WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN MIXED SWELL.

.30 HOUR FORECAST W OF LINE FROM 30N136W TO 28N140W WINDS 20 KT 
OR LESS. SEAS TO 9 FT IN NW SWELL.
.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 1500 UTC TUE OCT 23...

.HURRICANE WILLA...NUMEROUS STRONG WITHIN 45 NM NE AND 90 NM 
SW SEMICIRCLES SURROUNDED BY SCATTERED MODERATE TO STRONG IN 
BANDS ELSEWHERE WITHIN 180 NM OF CENTER.

.TROPICAL DEPRESSION VICENTE...SCATTERED MODERATE TO STRONG 
WITHIN 90 NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N73W TO 09.5N85W TO 06.5N95W TO 
12N101W...WHERE IT BREAKS...THEN RESUMES FROM NEAR 16N105W TO 
LOW PRES 12.5N116W TO 10N120W. ITCZ FROM 09.5N121W TO BEYOND 
10N140W. WIDELY SCATTERED MODERATE TO STRONG WITHIN 150 NM 
EITHER SIDE OF TROUGH FROM 78W TO 107W. SCATTERED MODERATE TO 
STRONG FROM 06N TO 11N BETWEEN 134W AND 142W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.