000
FZPN03 KNHC 232134
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT DEC 23 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1800 UTC SAT DEC 23.
24 HOUR FORECAST VALID 1800 UTC SUN DEC 24.
48 HOUR FORECAST VALID 1800 UTC MON DEC 25.

.WARNINGS.

...GALE WARNING...

.LOW PRES NEAR 29N140W 1007 MB. WITHIN 120 NM SE QUADRANT WINDS 
30 TO 35 KT. SEAS 12 TO 15 FT. ELSEWHERE WITHIN 300 NM SE 
QUADRANT WINDS 20 TO 30 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA N 
OF 20N W OF 133W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SE 
AND NW SWELL.
.12 HOUR FORECAST LOW PRES N OF AREA NEAR 30.5N138W 1009 MB. 
OVER FORECAST WATERS WITHIN 240 NM SE QUADRANT SE TO S WINDS 20 
TO 30 KT. SEAS 9 TO 13 FT. ELSEWHERE N OF 23N W OF 133W WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN MIXED SE AND NW SWELL.
.24 HOUR FORECAST WEAKENING LOW PRES N OF AREA NEAR 32N136W. 
OVER FORECAST WATERS WITHIN 210 NM SE QUADRANT SE TO S WINDS 20 
TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE W OF LINE FROM 30N132W TO 
21N140W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN NW SWELL. 
.48 HOUR FORECAST LOW DISSIPATED. W OF LINE FROM 30N126W TO 
13N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL. 

...GALE WARNING...

.03 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 
14.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
20 TO 30 KT. SEAS 8 TO 10 FT.
.06 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 
15N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 
35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 
16N95W TO 14N95.5W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 11 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. 
SEAS 8 TO 12 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 
14.5N95W TO 12.5N96.5W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 
FT. REMAINDER OF AREA N OF 12N BETWEEN 94W AND 100W WINDS 20 KT 
OR LESS. SEAS TO 9 FT IN MIXED SWELL. 

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA FROM 22N TO 28N W OF 108W NW TO N WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 10N TO 11.5N E OF 88W...INCLUDING THE GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST FROM 09N TO 11N E OF 91W...INCLUDING THE GULF 
OF PAPAGAYO...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 2030 UTC SAT DEC 23...

.LOW PRES NEAR 29N140W 1007 MB...SCATTERED MODERATE N OF 16N W 
OF 135W. 

.SURFACE TROUGH FROM 16N116W TO 10N117W...SCATTERED MODERATE 
FROM 14N TO 19N BETWEEN 107W AND 118W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

SURFACE TROUGH FROM 06N77W TO 07N100W. ITCZ CONTINUES FROM 
07N100W TO 08N117W TO 08N130W TO 10N140W. SCATTERED MODERATE 
FROM 06N TO 09N BETWEEN 114W AND 120W. 

$$

.FORECASTER FORMOSA. NATIONAL HURRICANE CENTER.