547
FZPN03 KNHC 250420
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE AUG 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC TUE AUG 25.
24 HOUR FORECAST VALID 0000 UTC WED AUG 26.
48 HOUR FORECAST VALID 0000 UTC THU AUG 27.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ISELLE NEAR 20.1N 118.6W 988 MB AT 0300 UTC AUG
25 MOVING NW OR 325 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE
QUADRANT...170 NM SE QUADRANT...110 NM SW QUADRANT...AND 60 NM
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 210 NM NE QUADRANT...180
NM SE QUADRANT...90 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH
SEAS TO 7.0 M. ELSEWHERE WITHIN 24N113W TO 25N118W TO 22N122W TO
17N120W TO 11N120W TO 17N114W TO 24N113W WINDS 20 TO 33 KT. SEAS
4.0 TO 5.5 M.
.24 HOUR FORECAST TROPICAL STORM ISELLE NEAR 21.3N 121.7W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM W SEMICIRCLE...140 NM NE QUADRANT AND 180 NM
SE QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM NE
SEMICIRCLE...210 NM SE QUADRANT AND 120 NM SW QUADRANT WITH SEAS
TO 5.5 M. ELSEWHERE WITHIN 27N117W TO 28N122W TO 26N126W TO
20N128W TO 16N121W TO 18N116W TO 27N117W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.5 M.
.48 HOUR FORECAST TROPICAL STORM ISELLE NEAR 22.6N 125.1W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS 4 M
OR GREATER WITHIN 210 NM N SEMICIRCLE... 180 NM SE QUADRANT AND
150 NM SW QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 25N121W
TO 27N125W TO 27N129W TO 21N131W TO 19N127W TO 23N121W TO 25N121W
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION TEN-E NEAR 14.5N 120.3W 1006 MB AT 0300 UTC
AUG 25 MOVING NNE OR 030 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. SEAS LESS THAN 4 M.
.12 HOUR FORECAST TROPICAL STORM TEN-E NEAR 16.7N 119.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST...DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W
TO 15N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N
WINDS 20 TO 30 KT. SEAS TO 2.5 M.

.WITHIN 11N86W TO 12N86W TO 11N88W TO 10N88W TO 10N86W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 30
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 12N86W TO 12N87W TO 11N88W TO 10N88W TO
10N87W TO 11N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N88W TO 11N89W
TO 10N88W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...
E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

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

CONVECTION VALID AT 0350 UTC TUE AUG 25...

.TROPICAL STORM ISELLE...NUMEROUS MODERATE TO STRONG FROM 19N TO
23N BETWEEN 113W AND 121W WHILE SCATTERED TO LOCALLY NUMEROUS
MODERATE EXTENDS ELSEWHERE FROM 14N TO 19N BETWEEN 110W AND
120W.

.TROPICAL DEPRESSION TEN-E...NUMEROUS MODERATE TO STRONG FROM
11N TO 16N BETWEEN 117W AND 122W WHILE SCATTERED TO LOCALLY
NUMEROUS MODERATE EXTENDS ELSEWHERE FROM 06N TO 13N BETWEEN 120W
AND 130W.

.TROPICAL WAVE ALONG 101W...SCATTERED TO LOCALLY NUMEROUS MODERATE
ISOLATED STRONG FROM 01N TO 13N BETWEEN 91W AND 104W.

.TROPICAL WAVE ALONG 108W...SCATTERED MODERATE ISOLATED STRONG FROM
09N TO 13N BETWEEN 103W AND 108W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 09N84W TO 06N100W TO 08N111W
THEN RESUMES SW OF ISELLE FROM 13N120W TO 11N132W TO BEYOND
07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 04.5N TO 10N E
OF 93W. SCATTERED MODERATE TO STRONG CONVECTION IS NOTED FROM
03N TO 13N W OF 130W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.