000
FZPN03 KNHC 200417
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC WED OCT 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED OCT 20.
24 HOUR FORECAST VALID 0000 UTC THU OCT 21.
48 HOUR FORECAST VALID 0000 UTC FRI OCT 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT ENTERING THE AREA. WITHIN 29N133W TO 28N140W TO 
30N140W TO 30N132W TO 29N133W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN W TO NW SWELL. 
.24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 30N137W TO
28N140W. WITHIN 26N133W TO 23N140W TO 30N140W TO 30N126W TO 
26N133W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL. 
.48 HOUR FORECAST REINFORCING COLD FRONT FROM 30N134W TO 28N140W. 
WITHIN 18N132W TO 16N140W TO 30N140W TO 30N118W TO 18N132W WINDS
20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.

.WITHIN 15N94W TO 14N96W TO 16N96W TO 16N95W TO 16N94W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...NE WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT. 
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE. 
.36 HOUR FORECAST WITHIN 14N95W TO 14N96W TO 14N99W TO 16N97W TO
16N95W TO 14N95W...INCLUDING THE GULF OF TEHUANTEPEC...NE TO E 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.09 HOUR FORECAST WITHIN 04N100W TO 04N104W TO 07N105W TO
08N102W TO 07N98W TO 04N100W WINDS 20 KT OR LESS. SEAS 8 FT IN S
SWELL.
.24 HOUR FORECAST WITHIN 05N97W TO 05N103W TO 08N104W TO 09N102W
TO 08N95W TO 05N97W WINDS 20 KT OR LESS. SEAS 8 FT IN S SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

CONVECTION VALID AT 0350 UTC WED OCT 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS FROM 10N86W TO 10N100W TO 11N108W TO 09N130W
TO 12N140W. SCATTERED MODERATE ISOLATED STRONG N OF 06N E OF 
84W...FROM 08N TO 14N BETWEEN 87W AND 94W...FROM 07N TO 13N 
BETWEEN 116W AND 123W...AND FROM 11N TO 14N W OF 138W. NUMEROUS 
MODERATE TO STRONG FROM 06N TO 13N BETWEEN 129W AND 136W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.