000
FZPN03 KNHC 180337
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU JAN 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 0000 UTC THU JAN 18.
24 HOUR FORECAST VALID 0000 UTC FRI JAN 19.
48 HOUR FORECAST VALID 0000 UTC SAT JAN 20.

.WARNINGS.

...GALE WARNING...
.WITHIN 90 NM EITHER SIDE OF A LINE FROM 16N95W TO 12N96W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 45 KT.
SEAS 8 TO 19 FT. ELSEWHERE WITHIN 120 NM EITHER SIDE OF A LINE 
FROM 16N95W TO 13.5N95W TO 07.5N100.5W N TO NE WINDS 20 TO 30 KT.
SEAS 10 TO 16 FT. REMAINDER OF AREA BOUNDED BY 16N95W TO 
11.5N91W TO 06N92W TO 02N104W TO 14N102W TO 16N95W WINDS 20 KT 
OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 13.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 30 TO 40 KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN 75 NM 
EITHER SIDE OF A LINE FROM 16N95W TO 14N95W TO 11N98W N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. REMAINDER OF AREA BOUNDED BY 
16N95W TO 11N90W TO 04.5N90W TO 00N97W TO 03.4S98W TO 03.4S110W 
TO 22N110W TO 15N98.5W TO 15N98W TO 16N95W WINDS 20 KT OR LESS. 
SEAS 8 TO 14 FT IN MIXED NE AND NW SWELL.
.42 HOUR FORECAST WITHIN 75 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 13N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94W AND 
96W N WINDS 20 TO 30 KT. SEAS TO 9 FT.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N137W TO 28N140W NW OF AREA. NW OF FRONT 
WINDS 20 KT OR LESS. SEAS 11 TO 17 IN NW SWELL. ELSEWHERE W OF A 
LINE FROM 30N115W TO 14N102W TO 02N104W TO 03.4S106W WINDS 20 KT 
OR LESS. SEAS 8 TO 12 FT IN MIXED NW AND NE SWELL...HIGHEST 
CENTRAL PART.
.24 HOUR FORECAST COLD FRONT FROM 30N128W TO 24N140W. NW OF 
FRONT N TO NE WINDS 20 TO 25 KT. SEAS 13 TO 15 FT IN NW SWELL. 
REMAINING OPEN WATERS W OF 110W WINDS 20 KT OR LESS. SEAS 8 TO 
14 FT IN MIXED SWELL...HIGHEST N OF 25N E OF FRONT.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N118W TO 
21N140W. NW OF FRONT N TO NE WINDS 20 TO 30 KT. SEAS 12 TO 15 FT 
IN NW SWELL. ELSEWHERE W OF LINE FROM 30N115W TO 23N111W TO 
17N114W TO 14.5N95W TO 10N90W TO 03N90W TO 03.4S92W WINDS 20 KT 
OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.

.WITHIN 45 NM EITHER SIDE OF A LINE FROM 11N86W TO 09N87.5W... 
INCLUDING THE GULF OF PAPAGAYO...N TO NE WINDS 20 TO 25 KT. SEAS 
TO 8 FT. N OF 11.5N BETWEEN 87.5W AND 88.5W...INCLUDING GULF OF 
FONSECA...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 11N86W 
TO 10N88W... INCLUDING THE GULF OF PAPAGAYO...N TO NE WINDS 20 
TO 25 KT. SEAS TO 9 FT. FROM 03N TO 10N BETWEEN 88W AND 90W 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED NE AND NW SWELL.

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

CONVECTION VALID AT 0245 UTC THU JAN 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 07N77W TO 09N86W TO 05N93W. ITCZ AXIS 
EXTENDS FROM 05N93W TO 07N130W TO BEYOND 09.5N140W. SCATTERED 
MODERATE ISOLATED STRONG FROM 03N TO 10N BETWEEN 77W AND 91W. 
SCATTERED MODERATE ISOLATED STRONG WITHIN 75 NM S AND 120 NM N 
OF AXIS BETWEEN 95W AND 110W. SCATTERED TO LOCALLY NUMEROUS 
WITHIN 90 NM S AND 360 NM N OF AXIS BETWEEN 110W AND 137W. 

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.