000
FZPN03 KNHC 242116
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SUN DEC 24.
24 HOUR FORECAST VALID 1800 UTC MON DEC 25.
48 HOUR FORECAST VALID 1800 UTC TUE DEC 26.

.WARNINGS.

...GALE WARNING...

.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.
.12 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 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 13 FT. ELSEWHERE WITHIN 45 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 FROM 12N TO 15N BETWEEN 94W AND 98W 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN N TO NE SWELL. 
.42 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W 
TO 12.5N96.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. ELSEWHERE FROM 11N TO 15N 
BETWEEN 93W AND 99W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO 
NE SWELL.
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W 
TO 13N97W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 10N TO 13N BETWEEN 93W 
AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.LOW PRES N OF AREA NEAR 33N136W 1012 MB WITH COLD FRONT TO 
30N136W TO 25N140W. N OF 28N E OF FRONT TO 132W S WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT. ELSEWHERE W OF LINE FROM 30N132W TO 23N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN MIXED SE AND NW SWELL.
.24 HOUR FORECAST LOW WELL N OF AREA AND FRONT DISSIPATED. W OF 
LINE FROM 30N125W TO 20N127W TO 13N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN PRIMARILY NW SWELL. 
.48 HOUR FORECAST W OF LINE FROM 30N136W TO 25N135W TO 25N123W 
TO 18N123W TO 16N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN 
PRIMARILY NW 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.
.24 HOUR FORECAST FROM 10N TO 11.5N E OF 89W...INCLUDING THE 
GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT. FROM 08N 
TO 11N BETWEEN 89W AND 91W WINDS 20 KT OR LESS. SEAS 8 FT IN NE 
SWELL. 
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2100 UTC SUN DEC 24...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

SURFACE TROUGH FROM 05N78W TO 06N90W TO 07N102W. ITCZ CONTINUES 
FROM 07N102W TO 08N115W TO 09N121W TO 07N130W TO 13N140W. 
SURFACE TROUGH FROM 15N120W TO ITCZ AXIS NEAR 09N121W. SCATTERED 
MODERATE TO ISOLATED STRONG FROM 03N TO 07N BETWEEN 76W AND 81W. 
ISOLATED MODERATE FROM 06N TO 10N BETWEEN 100W AND 110W. 
SCATTERED MODERATE TO ISOLATED STRONG FROM 12N TO 20N BETWEEN 
108W AND 120W.   

$$

.FORECASTER FORMOSA. NATIONAL HURRICANE CENTER.