000
FZPN03 KNHC 240853
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SUN DEC 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SUN DEC 24.
24 HOUR FORECAST VALID 0600 UTC MON DEC 25.
48 HOUR FORECAST VALID 0600 UTC TUE DEC 26.

.WARNINGS.

...GALE WARNING...

.WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W...INCLUDING THE 
GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. SEAS 10 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.
.06 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N95W TO 
12.5N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 30 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 
16N95W TO 14N95.5W TO 13N96W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN N TO NE SWELL.
.18 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 10 TO 12 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 
16N95W TO 15N95W TO 13.5N96W 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 TO 
14.6N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
30 TO 35 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 60 NM OF LINE 
FROM 16N95W TO 15N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 11 FT. REMAINDER OF AREA BOUNDED BY 16N95W TO 14N93W TO 
10N98W TO 12N102W TO 16N95W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN MIXED SWELL. 

.SYNOPSIS AND FORECAST.

.LOW PRES N OF AREA NEAR 31.5N138W 1010 MB WITH COLD FRONT TO 
31N138W TO 25N140W. OVER FORECAST WATERS WITHIN 210 NM SE 
QUADRANT OF LOW SE TO S WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. 
ELSEWHERE W OF LINE FROM 30N133W TO 27N134W TO 25N138W WINDS 20 
KT OR LESS. SEAS 8 TO 12 FT IN MIXED SE AND NW SWELL.
.12 HOUR FORECAST WEAKENING LOW PRES N OF AREA NEAR 32N135.5W 
WITH WEAKENING COLD FRONT TO 30N136.5W TO 28N138W...THEN 
WEAKENING STATIONARY FRONT TO 24N140W. OVER FORECAST WATERS W OF 
LINE FROM 30N131W TO 22N140W WINDS 20 KT OR LESS. SEAS 8 TO 13 
FT IN MIXED SE AND NW SWELL...HIGHEST NW. 
.24 HOUR FORECAST LOW WELL N OF AREA AND FRONTS DISSIPATED. W OF 
LINE FROM 30N130W TO 17N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 
FT IN MIXED SE AND NW SWELL. 
.48 HOUR FORECAST W OF LINE FROM 26N129W TO 20N124W TO 11N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NW AND E SWELL.

.FROM 10N TO 11.5N E OF 87.5W...INCLUDING THE GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST FROM 09.5N TO 11.5N E OF 89W...INCLUDING THE 
GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 0830 UTC SUN DEC 24...

.COLD FRONT FROM LOW PRES NEAR 31.5N138W 1010 MB TO 
31N138W TO 25N140W...SCATTERED MODERATE N OF 23N W OF 135W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

SURFACE TROUGH FROM 07N77W TO 06N93W TO 07N102W. ITCZ CONTINUES 
FROM 07N102W TO 07N130W TO BEYOND 10N140W. NUMEROUS MODERATE 
SCATTERED STRONG FROM 08N TO 12N BETWEEN 110W AND 116W. 
SCATTERED MODERATE ISOLATED STRONG ELSEWHERE FROM 07N TO 14N 
BETWEEN 109W AND 117W. SCATTERED MODERATE ISOLATED STRONG FROM 
05.5N TO 08N BETWEEN 94W AND 98W AND WITHIN 90 NM EITHER SIDE 
OF LINE FROM 07N128W TO 08N132W TO 16N138W.

$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.