000
FZPN03 KNHC 210014
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU OCT 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC THU OCT 21.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 22.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.DISSIPATING COLD FRONT FROM 32N130W TO 29N140W. NW OF A LINE
FROM 30N128W TO 25N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN
NW SWELL. 
.24 HOUR FORECAST NEW COLD FRONT NEAR 30N140W. NW OF A LINE FROM
28N121W TO 22N130W TO 10N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN NW SWELL.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 30N128W TO 26N140W.
NW OF A LINE FROM 30N125W TO 23N140W WINDS 20 KT OR LESS. SEAS 8
TO 12 FT IN NW SWELL...EXCEPT 12 TO 14 FT NW OF A LINE FROM
30N130W TO 26N140W. FROM 11N TO 20N BETWEEN 126W AND 135W WINDS
20 KT OR LESS. SEAS 8 FT IN NW SWELL.

.FROM 05N TO 07N BETWEEN 102W AND 104W WINDS 20 KT OR LESS. SEAS 
8 FT IN S SWELL.
.24 HOUR FORECAST FROM 08N TO 11N BETWEEN 95W AND 98W WINDS 20 KT
OR LESS. SEAS 8 TO 9 FT IN S SWELL. FROM 07N TO 09N BETWEEN 98W
AND 101W WINDS 20 KT OR LESS. SEAS 8 FT IN S SWELL.
.48 HOUR FORECAST FROM 10N TO 13N BETWEEN 98W AND 101W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN S SWELL.

.WITHIN 15 NM OF A LINE FROM 16N95W TO 15N95.5W TO 13.5N97W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 15N95.5W
TO 13.5N97W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2100 UTC THU OCT 21...

TROPICAL WAVE ALONG 95W...SCATTERED MODERATE TO ISOLATED STRONG 
CONVECTION FROM 10N TO 16N BETWEEN 91W AND 101W.

TROPICAL WAVE ALONG 132W...SCATTERED MODERATE TO ISOLATED STRONG
CONVECTION FROM 08N TO 11N BETWEEN 124W AND 132W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM NORTHERN COSTA RICA NEAR 
10N84W TO 11N94W TO 09N103W TO 12N112W TO 09N125W TO 12N134W TO 
12N140W. ASIDE FROM THE CONVECTION ASSOCIATED WITH THE TROPICAL 
WAVES MENTIONED ABOVE, SCATTERED MODERATE TO ISOLATED STRONG 
CONVECTION CAN BE FOUND N OF 06 BETWEEN 78W AND 84W...FROM 07N 
TO 10N BETWEEN 100W AND 108W...FROM 09N TO 11N BETWEEN 112W AND 
114W...AND FROM 09N TO 12N W OF 134W.  

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.