000
FZPN03 KNHC 191520
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE OCT 19.
24 HOUR FORECAST VALID 1200 UTC WED OCT 20.
48 HOUR FORECAST VALID 1200 UTC THU OCT 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 29N125W TO 28N129W TO 29N131W TO 30N136W TO 30N122W TO
29N125W WINDS 20 KT OR LESS. SEAS 8 FT IN NW TO N SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 14N94W TO 13N96W TO 14N96W TO 16N96W TO 16N94W TO
14N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
25 KT. SEAS 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 15N95W TO 15N96W TO 16N96W TO 16N95W TO
15N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.

.09 HOUR FORECAST COLD FRONT NW OF AREA. WITHIN 30N138W TO 
29N140W TO 30N140W TO 30N137W TO 30N138W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN W TO NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N138W TO 29N140W. WITHIN 
26N140W TO 30N140W TO 30N130W TO 26N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 12 FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT STALLED FROM 30N137W TO 27N140W.
WITHIN 19N140W TO 30N140W TO 30N122W TO 28N124W TO 19N140W WINDS
20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.

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

CONVECTION VALID AT 1500 UTC TUE OCT 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM LOW PRES NEAR 11N75W TO 10N100W TO LOW PRES 
NEAR 11N111W TO 10N125W TO 12N140W. SCATTERED MODERATE ISOLATED 
STRONG FROM 02N TO 09N BETWEEN 77W AND 84W...FROM 07N TO 10N 
BETWEEN 112W AND 117W...FROM 08N TO 11N BETWEEN 120W AND 130W... 
FROM 10N TO 13N BETWEEN 132W AND 136W...AND FROM 11N TO 14N 
BETWEEN 138W AND 140W. ISOLATED TO SCATTERED MODERATE FROM 06N 
TO 17N BETWEEN 87W AND 100W...AND FROM 15N TO 18N BETWEEN 100W 
AND 106W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.