000
FZPN03 KNHC 222120
HSFEP2

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

.WARNINGS.

...GALE WARNING... 
.WITHIN 15 NM OF A LINE FROM 16N95W TO 15N95W TO 14N95.5W... 
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS 8 
TO 9 FT. 
.06 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 
14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 
KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 45 NM OF A LINE FROM 
16N95W TO 14.5N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 9 FT.
.12 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 15N95W 
TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
25 TO 35 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 45 NM OF A LINE 
FROM 16N95W TO 14N95.5W TO 12N97.5W N TO NE WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.18 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 15N95W 
TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
25 TO 35 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 45 NM OF A LINE 
FROM 16N95W TO 14N95.5W TO 11.5N99W N TO NE WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.24 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 15N95W 
TO 12.5N97W TO 11N100W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 
FT. ELSEWHERE FROM 11N TO 13N BETWEEN 95W AND 100W WINDS 20 KT 
OR LESS. SEAS 8 FT IN MIXED NE AND SW SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 15N95W 
TO 13N96.5W N TO NE WINDS 20 TO 25 KT. SEAS 8 FT.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 15N121W 1010 MB. WITHIN 60 NM NW QUADRANT WINDS 
20 TO 25 KT. SEAS 8 FT. 
.24 HOUR FORECAST LOW PRES NEAR 18N123W 1009 MB. WITHIN 60 NM NW 
QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST LOW PRES NEAR 21N125W 1008 MB. WITHIN 90 NM NW 
N SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 

.FROM 09N TO 15N W OF 137W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 
9 FT.
.12 HOUR FORECAST FROM 10N TO 12N BETWEEN 136W AND 138W WINDS 20 
KT OR LESS. SEAS 8 FT IN MIXED NE AND NW SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 02S BETWEEN 114W AND 116W WINDS 20 KT OR LESS. SEAS 8 FT 
IN SW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST S OF 00N BETWEEN 116 AND 119W...AND S OF A 
LINE FROM 03.4S105W TO 01S109W TO 03.4S115W WINDS 20 KT OR LESS. 
SEAS 8 FT IN SW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 1800 UTC WED SEP 22...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 09N84W TO 10N100W TO 12N117W. 
THE ITCZ BEGINS NEAR 12N124W AND CONTINUES TO BEYOND 09N140W. 
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION CAN BE FOUND N 
OF 05N E OF 80W TO THE COAST OF COLOMBIA, INCLUDING THE GULF OF 
PANAMA...FROM 10N TO 13N BETWEEN 98W AND 105W...WITHIN 120 NM NW 
QUADRANT OF LOW PRESSURE LOCATED NEAR 15N121W...AND FROM 08N TO 
11N W OF 138W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.