000
FZPN03 KNHC 221531
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC WED SEP 22.
24 HOUR FORECAST VALID 1200 UTC THU SEP 23.
48 HOUR FORECAST VALID 1200 UTC FRI SEP 24.

.WARNINGS.

...GALE WARNING... 
.WITHIN 15 NM OF A LINE FROM 16N95W TO 15N95W TO 13.5N96W... 
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS TO 
8 FT. 
.12 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.
.24 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 11N99W N TO NE WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.30 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 15 NM OF A LINE FROM 16N95W TO 15N95W 
TO 13N97.5W N TO NE WINDS 20 TO 25 KT. SEAS 8 FT.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 15N121W 1011 MB. WITHIN 60 NM NW QUADRANT WINDS 
20 TO 25 KT. SEAS 8 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
18N123W 1009 MB. WITHIN 60 NM NW QUADRANT WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
20N125W 1008 MB. WITHIN 90 NM NW QUADRANT WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT. 

.FROM 09N TO 17NW OF 137W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 
10 FT.
.12 HOUR FORECAST FROM 10N TO 13N W OF 136W WINDS 20 KT OR LESS. 
SEAS 8 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 01S 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.
.48 HOUR FORECAST S OF 00N BETWEEN 116 AND 118W...AND S OF A 
LINE FROM 03.4S105W TO 01S108W TO 03.4S113W WINDS 20 KT OR LESS. 
SEAS 8 FT IN SW SWELL.

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

CONVECTION VALID AT 1500 UTC WED SEP 22...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 09N85W TO 10N100W TO 1011 MB LOW 
PRESSURE LOCATED NEAR 15N121W. THE ITCZ BEGINS NEAR 12N122W AND 
CONTINUES TO BEYOND 09N140W. SCATTERED MODERATE TO ISOLATED 
STRONG CONVECTION CAN BE FOUND N OF 03N E OF 84W TO THE COAST OF 
COLOMBIA...INCLUDING THE GULF OF PANAMA...FROM 10N TO 13N 
BETWEEN 100W AND 104W...WITHIN 120 NM NW QUADRANT OF LOW 
PRESSURE LOCATED NEAR 15N121W...AND FROM 08N TO 11N W OF 137W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.