000
FZPN03 KNHC 201539
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU AUG 20 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU AUG 20.
24 HOUR FORECAST VALID 1200 UTC FRI AUG 21.
48 HOUR FORECAST VALID 1200 UTC SAT AUG 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES W OF AREA NEAR 11.5N142.5W 1006 MB MOVING W-NW 14 KT. 
WITHIN 14N140W TO 12.5N140W TO 13N140W TO 13.5N139.5W TO 14N140W
E TO SE WINDS 20 TO 25 KT. SEAS 3.0 M. ELSEWHERE WITHIN 15N138W 
TO 17N137W TO 17N139W TO 18N140W TO 12N140W TO 13N138W TO 15N138W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL.
.24 HOUR FORECAST LOW PRES WELL W OF 140W. WITHIN 18N139W TO 
19N140W TO 16N140W TO 16N139W TO 16N138W TO 17N138W TO 18N139W 
WINDS 20 KT OR LESS. SEAS 2.5 M IN E SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE E OF 140W. WINDS 20 KT OR 
LESS. SEAS LESS THAN 2.5 M.

.WITHIN 16N94.5W TO 16N95W TO 15N95.5W TO 14.5N95.5W TO 14.5N95W
TO 15N94.5W TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC...N 
TO NE WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N N WINDS 20 TO 25 
KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15.5N N WINDS 20 TO 
25 KT. SEAS LESS THAN 2.5 M.

.WITHIN 11N86W TO 11N88W TO 10N88W TO 10N87W TO 11N86W...INCLUDING
THE GULF OF PAPAGAYO... NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 
M.
.24 HOUR FORECAST WITHIN 11N86.5W TO 11N87.5W TO 10.5N88W TO 
10.5N87.5W TO 10.5N86.5W TO 10.5N86W TO 11N86.5W...INCLUDING THE 
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 
M.
.48 HOUR FORECAST WITHIN 11N86W TO 11N87.5W TO 10.5N87.5W TO 
10.5N86.5W TO 10.5N86W TO 11N86W...INCLUDING THE GULF OF 
PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

.WITHIN 01S82W TO 00N105W TO 04N115W TO 00N134W TO 03S120W TO
03.4S97W TO 01S82W WINDS 20 KT OR LESS. SEAS 2.5 M IN MIXED SE 
TO S AND SW SWELL.
.24 HOUR FORECAST WITHIN 01N107W TO 05N115W TO 02N116W TO 
01N118W TO 02S114W TO 01S110W TO 01N107W WINDS 20 KT OR LESS. 
SEAS 2.5 M IN S TO SE SWELL.
.48 HOUR FORECAST WITHIN 05N114W TO 05N115W TO 04N115W TO 
03N115W TO 03N115W TO 03N114W TO 05N114W WINDS 20 KT OR LESS. 
SEAS 2.5 M IN SE SWELL.

.18 HOUR FORECAST WITHIN 12N98W TO 13N100W TO 12N102W TO 11N100W
TO 11N97W TO 12N98W WINDS 20 KT OR LESS. SEAS 2.5 M IN E TO SE 
SWELL.
.24 HOUR FORECAST WITHIN 12N99W TO 13N100W TO 13N102W TO 12N102W
TO 11N100W TO 12N99W WINDS 20 KT OR LESS. SEAS 2.5 M IN SE 
SWELL.
.48 HOUR FORECAST WITHIN 16N105W TO 16N106W TO 16N108W TO 
15N108W TO 14N106W TO 14N105W TO 16N105W WINDS 20 KT OR LESS. 
SEAS 2.5 M IN SE TO S SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 1500 UTC THU AUG 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10.5N75W TO 07N81W TO 1007 MB LOW PRES NEAR 
09.5N111.5W TO 06N130W TO BEYOND 10N140W. SCATTERED TO NUMEROUS
MODERATE TO STRONG CONVECTION FROM 04.5N TO 11N BETWEEN 77W AND 
86W...FROM 06N TO 14.5N BETWEEN 90W AND 105W...AND FROM 04N TO 
12N BETWEEN 107W AND 117W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION FROM 05N TO 14.5N BETWEEN 87W AND 107W...AND FROM 03N
TO 10N BETWEEN 117W AND 136W. SCATTERED MODERATE CONVECTION FROM
08N TO 17N BETWEEN 136W AND 140W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.