000
FZPN03 KNHC 272056
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE OCT 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE OCT 27.
24 HOUR FORECAST VALID 1800 UTC WED OCT 28.
48 HOUR FORECAST VALID 1800 UTC THU OCT 29.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM VANCE NEAR 17.2N 108.3W 1003 MB AT 2100 UTC OCT
27 MOVING NW OR 305 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE.  SEAS 4 M OR GREATER WITHIN 90
NM OF CENTER EXCEPT 60 NM SW QUADRANT WITH SEAS TO 4.0 M. 
ELSEWHERE WITHIN 18N106W TO 19N107W TO 19N108W TO 18N109W TO 
16N108W TO 17N106W TO 18N106W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 
M. REMAINDER AREA WITHIN 18N104W TO 20N107W TO 19N110W TO 16N111W
TO 15N109W TO 16N106W TO 18N104W WINDS 20 KT OR LESS. SEAS 2.5 
TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM VANCE NEAR 19.7N 108.9W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM W SEMICIRCLE...70 NM NE QUADRANT AND 60 NM SE 
QUADRANT. SEAS 4 M OR GREATER WITHIN 75 NM E SEMICIRCLE AND 0 NM 
W SEMICIRCLE WITH SEAS TO 4.0 M. ELSEWHERE WITHIN 20N107W TO 
21N108W TO 21N109W TO 20N109W TO 19N108W TO 19N107W TO 20N107W 
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 
21N107W TO 22N108W TO 21N111W TO 19N110W TO 18N108W TO 19N106W TO
21N107W WINDS 25 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL VANCE NEAR 22.9N 108.3W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM W SEMICIRCLE...50 NM NE QUADRANT AND 40 NM SE 
QUADRANT. SEAS 4 M OR GREATER WITHIN 45 NM E SEMICIRCLE AND 0 NM 
W SEMICIRCLE WITH SEAS TO 4.0 M. ELSEWHERE WITHIN 24N107W TO 
24N108W TO 23N109W TO 22N109W TO 22N108W TO 22N106W TO 24N107W 
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 
23N107W TO 24N108W TO 23N108W TO 22N108W TO 22N107W TO 23N107W 
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 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.

.WITHIN 16N94W TO 16N95W TO 15N96W TO 13N97W TO 13N95W TO 14N95W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS
20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
15N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE 
WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO
15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 
20 TO 25 KT. SEAS TO 2.5 M.

.WITHIN 30N135W TO 30N140W TO 28N140W TO 28N137W TO 29N136W TO
30N135W S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 30N135W TO 30N139W TO 28N137W TO 
28N136W TO 28N135W TO 30N135W WINDS 20 KT OR LESS. SEAS 2.5 TO 
3.0 M IN E TO SE SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WITHIN 30N137W TO 30N140W 
TO 29N140W TO 29N138W TO 30N137W WINDS 20 KT OR LESS. SEAS LESS 
THAN 2.5 M.

.WITHIN 02N102W TO 03N111W TO 00N122W TO 03.4S120W TO 03S99W TO
02N102W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SW SWELL.
.24 HOUR FORECAST WITHIN 03N106W TO 02N125W TO 00N129W TO
01S120W TO 03.4S120W TO 02S102W TO 03N106W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 00N107W TO 04N119W TO 00N129W TO
01S120W TO 03.4S120W TO 03.4S104W TO 00N107W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.

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

CONVECTION VALID AT 2100 UTC TUE OCT 27...

T.S. VANCE...NUMEROUS MODERATE TO STRONG BETWEEN 45 NM AND 120 
NM IN THE E SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 09N101W. IT RESUMES FROM 11N111W 
TO 06N140W. SCATTERED MODERATE ISOLATED STRONG FROM 01N TO 10N E
OF 87W...FROM 01N TO 05N BETWEEN 100W AND 117W...AND FROM 00N TO
09N BETWEEN 132W AND 140W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.