743
FZPN03 KNHC 031538
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC FRI OCT 03 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI OCT 03.
24 HOUR FORECAST VALID 1200 UTC SAT OCT 04.
48 HOUR FORECAST VALID 1200 UTC SUN OCT 05.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM OCTAVE NEAR 13.4N 121.0W 1001 MB AT 1500 UTC OCT 03
MOVING WNW OR 290 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS
55 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N SEMICIRCLE...40 NM
SE QUADRANT AND 0 NM SW QUADRANT.  SEAS 4 M OR GREATER WITHIN 90 NM
E SEMICIRCLE...45 NM SW QUADRANT AND 75 NM NW QUADRANT WITH SEAS TO
5.5 M. ELSEWHERE WITHIN 150 NM N SEMICIRCLE...120 NM SE QUADRANT AND
90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 4 FT. REMAINDER OF
THE AREA FROM 08N TO 16N BETWEEN 115W AND 120W...AND FROM 10N TO 17N
BETWEEN 120W AND 123W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED
SWELL.
.24 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 14.4N 123.2W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM N SEMICIRCLE...40 NM SE QUADRANT AND 20 NM SW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM E SEMICIRCLE...45 NM SW
QUADRANT AND 75 NM NW QUADRANT WITH SEAS TO 5.5 M. ELSEWHERE WITHIN
180 NM N SEMICIRCLE...150 NM SE QUADRANT AND 90 NM SW QUADRANT WINDS
20 TO 33 KT. SEAS 3 TO 4 FT. REMAINDER OF THE AREA FROM 09N TO 21N
BETWEEN 118W AND 128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED
SWELL.
.48 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 15.4N 124.1W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM N SEMICIRCLE...40 NM SE QUADRANT AND 30 NM SW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM OF CENTER...EXCEPT 60 NM
SW QUADRANT WITH SEAS TO 6 M. ELSEWHERE WITHIN 180 NM N
SEMICIRCLE...150 NM SE QUADRANT AND 90 NM SW QUADRANT WINDS 20 TO 33
KT. SEAS 3 TO 4 FT. REMAINDER OF THE AREA FROM 08N TO 20N BETWEEN
120W AND 130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL.

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.

.LOW PRES NEAR 13.5N105W 1008 MB. WITHIN 90 NM NE QUADRANT WINDS 20
TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N107W 1006 MB. WITHIN 120 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS
2.5 M TO 3 M.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15.5N107.5W 1004 MB. WITHIN 120 NM NE QUADRANT AND 90 NM SE AND NW
QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 M TO 3 M.

.N OF 23N BETWEEN 115W AND 122W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NW SWELL.
.24 HOUR FORECAST N OF 25N E OF 117W NW TO N WINDS 20 TO 25 KT. SEAS
2.5 TO 3.0 M IN NW SWELL. ELSEWHERE N OF 21N BETWEEN 113WAND 122W
WINDS 20 KT OR LESS. SEAS 2.5 M IN NW SWELL.
.48 HOUR FORECAST FROM 21N TO 24N BETWEEN 113W AND 118W WINDS 20 KT
OR LESS. SEAS TO 2.5 M IN NW SWELL.

.N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

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

CONVECTION VALID AT 1500 UTC FRI OCT 3...

.T.S. OCTAVE...NUMEROUS MODERATE TO STRONG WITHIN 150 NM SW
SEMICIRCLE.

.LOW PRES NEAR 13.5N105W (EP99)...NUMEROUS MODERATE TO ISOLATED
STRONG CONVECTION FROM 13N TO 16N BETWEEN 100W AND 108W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS FROM 11N85W TO A 1008 MB LOW PRES LOCATED
NEAR 13.5N105W TO 15N112W, THEN RESUMES SW OF TROPICAL STORM OCTAVE
FROM 11N122W TO 08N129W. THE ITCZ CONTINUES FROM 08N129W TO BEYOND
09N140W. ASIDE FROM THE CONVECTION ASSOCIATED WITH OCTAVE AND THE
LOW PRESSURE, SCATTERED MODERATE TO ISOLATED STRONG CONVECTION CAN BE
FOUND FROM 02N TO 07N E OF 80W TO THE COAST OF COLOMBIA, FROM 08N TO
14N BETWEEN 90W AND 100W, AND FROM 17N TO 22N BETWEEN 105W AND 108W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.