000
FZPN03 KNHC 212122
HSFEP2

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

.WARNINGS.

...GALE WARNING...
.12 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING 
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT. 
.24 HOUR FORECAST WITHIN 15 NM OF A LINE FROM 16N95W TO 15N95W 
TO 12.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 
TO 30 KT. SEAS TO 8 FT. 
.30 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 60 NM OF A LINE FROM 
16N95W TO 14.5N95W TO 12N98W N WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 14N95.5W 
TO 11.5N99W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 
30 KT. SEAS 8 TO 10 FT.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 14N119W 1011 MB. WITHIN 60 NM NW QUADRANT WINDS 
20 TO 25 KT. SEAS 8 FT. ELSEWHERE FROM 10N TO 15N BETWEEN 112W 
AND 118W WINDS 20 KT OR LESS. SEAS 8 FT IN S SWELL. 
.24 HOUR FORECAST LOW PRES NEAR 16N121W 1008 MB. WITHIN 60 NM NW 
QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 15N 
TO 20N BETWEEN 118W AND 124W WINDS 20 KT OR LESS. SEAS 8 FT IN 
MIXED SE AND NW SWELL. 
.48 HOUR FORECAST LOW PRES NEAR 18N124W 1008 MB. WITHIN 90 NM NW 
QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 

.N OF 28N BETWEEN 122W AND 125W WINDS 20 KT OR LESS. SEAS 8 FT 
IN NW SWELL.
.12 HOUR FORECAST 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 2100 UTC TUE SEP 21...

.LOW PRES NEAR 14N119W...SCATTERED MODERATE TO ISOLATED STRONG 
FROM 13N TO 16N BETWEEN 119W AND 121W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N85W TO 11N107W TO 1011 MB LOW 
PRESSURE LOCATED NEAR 14N119W TO 10N122W. THE ITCZ CONTINUES 
FROM 10N122W TO 1011 MB LOW PRESSURE SITUATED NEAR 09N136W TO 
BEYOND 08N140W. ASIDE FROM THE CONVECTION ASSOCIATED WITH THE 
TROPICAL WAVES...A CLUSTER OF MODERATE TO ISOLATED STRONG 
CONVECTION IS JUST S OF THE AZUERO PENINSULA TO ABOUT 05N. 
SIMILAR CONVECTION IS NOTED FROM 10N TO 13N BETWEEN 90W AND 95W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.