000
FZPN03 KNHC 210225
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI JUL 21 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FRI JUL 21.
24 HOUR FORECAST VALID 0000 UTC SAT JUL 22.
48 HOUR FORECAST VALID 0000 UTC SUN JUL 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 13.5N121W 1006 MB. WITHIN 16N116W TO 17N118W TO 
17N121W TO 15N122W TO 12N121W TO 13N118W TO 16N116W WINDS 20 TO 
30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15.5N124.5W 1004 MB. WITHIN 16N121W TO 18N122W TO 18N126W TO 
16N126W TO 14N121W TO 16N121W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15.5N127.5W 1007 MB. WITHIN 18N127W TO 19N129W TO 18N130W TO 
17N131W TO 16N129W TO 17N128W TO 18N127W WINDS 20 KT OR LESS. 
SEAS 8 FT IN E TO SE SWELL.

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

.WITHIN 11N86W TO 12N87W TO 12N88W TO 10N88W TO 10N87W TO 11N86W
...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 11N86W TO 11.5N86.5W TO 11N87.5W TO 
10.5N87.5W TO 10.5N86W TO 11N86W...INCLUDING THE GULF OF 
PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 13N132W TO 14N140W TO 12N140W TO 12N137W TO 11N136W TO
12N132W TO 13N132W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO 
E SWELL.
.24 HOUR FORECAST WITHIN 13N138W TO 14N140W TO 10N140W TO 
10N139W TO 12N137W TO 13N138W WINDS 20 KT OR LESS. SEAS 8 FT IN 
NE SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.03 HOUR FORECAST WITHIN 30N112W TO 30N113W TO 29N113W TO
28N112W TO 30N112W...INCLUDING THE GULF OF CALIFORNIA...SE TO S 
WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WITHIN 31N113W TO 32N114W TO 30N115W TO 
30N114W TO 30N113W TO 31N113W...INCLUDING THE GULF OF 
CALIFORNIA...SE TO S WINDS 20 TO 30 KT WITH LOCALLY HIGHER GUSTS.
SEAS LOCALLY TO AROUND 8 FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. 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 0100 UTC FRI JUL 21...

.LOW PRES NEAR 13.5N121W...NUMEROUS MODERATE SCATTERED STRONG
WITHIN 75 NM NE SEMICIRCLE. ISOLATED TO SCATTERED MODERATE
ELSEWHERE FROM 08N TO 17N BETWEEN 118W AND 121W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N73W TO 07N93W. ITCZ FROM 07N93W TO 
07N102W...THEN FROM 06N106W TO 11N116W...THEN FROM 11N123W TO 
10N130W TO 11N140W. SCATTERED MODERATE TO STRONG FROM 02N TO 06N 
BETWEEN 78W AND 88W...FROM 03N TO 06N BETWEEN 94W AND 97W...FROM 
10N TO 14N BETWEEN 108W AND 115W...AND FROM 07N TO 15N BETWEEN 
123W AND 136W. SCATTERED MODERATE FROM 05N TO 08N BETWEEN 11W AND
118W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.