403 
FZPN03 KNHC 210911
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT AUG 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT AUG 21.
24 HOUR FORECAST VALID 0600 UTC SUN AUG 22.
48 HOUR FORECAST VALID 0600 UTC MON AUG 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 28N127W TO 28N132W TO 28N135W TO 30N139W TO 30N124W TO
28N127W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 27N129W TO 27N132W TO 28N135W TO
30N136W TO 30N126W TO 27N129W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN N TO NE SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 11N111W TO 12N115W TO 13N114W TO 14N111W TO 13N110W TO
11N111W SW WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST WITHIN 12N108W TO 11N109W TO 12N112W TO
14N111W TO 14N109W TO 12N108W SW TO W WINDS 20 TO 25 KT. SEAS 8
TO 10 FT. ELSEWHERE WITHIN 11N115W TO 11N118W TO 13N118W TO 
13N117W TO 13N113W TO 11N115W WINDS 20 KT OR LESS. SEAS 8 FT IN S
TO SW SWELL. 
.48 HOUR FORECAST WITHIN 12N113W TO 11N117W TO 11N119W TO 
14N117W TO 14N113W TO 12N113W W WINDS 20 TO 25 KT. SEAS 8 FT. 
ELSEWHERE WITHIN 12N107W TO 12N110W TO 13N110W TO 13N109W TO 
13N107W TO 12N107W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW 
SWELL. 

.30 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE NEAR 
18N105W 1004 MB. WITHIN 18N102W TO 17N102W TO 17N104W TO 19N106W
TO 20N106W TO 18N102W...INCLUDING NEAR CABO CORRIENTES...SE 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE NEAR 
21N109W 1004 MB. WITHIN 20N106W TO 18N107W TO 19N110W TO 23N108W
TO 22N107W TO 20N106W...INCLUDING NEAR CABO CORRIENTES...SE 
WINDS 20 TO 25 KT. SEAS 8 FT.

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

CONVECTION VALID AT 0900 UTC SAT AUG 21...

.TROPICAL WAVE NEAR 101W....NUMEROUS MODERATE ISOLATED STRONG 
FROM 10N TO 14N BETWEEN 100W AND 103W.

.TROPICAL WAVE NEAR 116W...SCATTERED MODERATE FROM 08N TO 15N 
BETWEEN 108W AND 120W.

.TROPICAL WAVE NEAR 129W...SCATTERED MODERATE FROM 08N TO 12N 
BETWEEN 120W AND 130W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N85W TO 10N90W TO 13N96W THEN RESUMES NEAR
16N107W AND CONTINUES TO 11N120W TO 13N130W TO 14N137W. ITCZ 
FROM 14N137W TO 13N140W. SCATTERED MODERATE TO STRONG N OF 04N E
OF 93W. 

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.