000
FZPN03 KNHC 181558
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON JAN 18 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MON JAN 18.
24 HOUR FORECAST VALID 1200 UTC TUE JAN 19.
48 HOUR FORECAST VALID 1200 UTC WED JAN 20.

.WARNINGS.

...GALE WARNING...
.GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 95.5W N WINDS 30
TO 35 KT. SEAS TO 11 FT. ELSEWHERE WITHIN 15N94W TO 14N95W TO 
14N96W TO 16N95W TO 15N94W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 
10 FT.
.06 HOUR FORECAST WITHIN 13N95W TO 14N96W TO 16N95W TO 15N95W TO
13N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT. SEAS TO 11 FT. ELSEWHERE WITHIN 13N95W TO 13N96W TO 
14N96W TO 15N96W TO 15N95W TO 13N95W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN N SWELL. 
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN 14N94.5W TO 14.5N95.5W TO 15.5N95.5W TO
16N94.5W TO 15N94.5W TO 14N94.5W...INCLUDING THE GULF OF 
TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS TO 9 FT. ELSEWHERE WITHIN
14N95W TO 14N96W TO 15N95W TO 14N95W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN N SWELL. 

.SYNOPSIS AND FORECAST.

.WITHIN 00N126W TO 00N140W TO 30N140W TO 30N116W TO 19N109W TO
00N126W WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN NW SWELL...EXCEPT
MIXED SWELL S OF 14N.
.24 HOUR FORECAST WITHIN 10N98W TO 03.4S113W TO 00N140W TO 
30N135W TO 30N116W TO 10N98W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT
IN NW SWELL...EXCEPT MIXED SWELL S OF 14N.
.48 HOUR FORECAST LOW PRES NEAR 28.5N120W 1000 MB. WITHIN 
29N123W TO 28N127W TO 30N127W TO 29N123W TO 30N116W TO 29N123W N 
TO NE WINDS 20 TO 25 KT. SEAS 13 TO 14 FT IN NW SWELL. ELSEWHERE 
WITHIN 11N98W TO 03.4S100W TO 00N134W TO 21N125W TO 30N116W TO 
11N98W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. 
SEAS 8 TO 12 FT IN NW SWELL...EXCEPT MIXED SWELL S OF 16N. 

.WITHIN 10.5N86W TO 10.5N86.5W TO 10.5N87W TO 11N87W TO 11N86W
TO 10.5N86W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 11N86W TO 10N89W TO 10N91W TO 11N90W TO
12N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E 
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN 09N88W TO 09N88W TO 11N90W TO 12N87W TO
11N86W TO 09N88W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 
TO 30 KT. SEAS TO 9 FT. WITHIN 07N95W TO 08N99W TO 11N98W TO 
12N95W TO 10N92W TO 07N95W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED SWELL.

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

CONVECTION VALID AT 1530 UTC MON JAN 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N74W TO 08N84W TO 05N103W TO 
LOW PRES 1010 MB NEAR 07.5N118W. THE ITCZ CONTINUES FROM NEAR 
08N123W TO 09N127W TO 06.5N140W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION NOTED FROM 04N TO 08N BETWEEN 88W AND 107W. 
SCATTERED MODERATE TO STRONG CONVECTION NOTED FROM 06N TO 11N 
BETWEEN 112W TO 135W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.