034
FZPN03 KNHC 270851
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC TUE OCT 27.
24 HOUR FORECAST VALID 0600 UTC WED OCT 28.
48 HOUR FORECAST VALID 0600 UTC THU OCT 29.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM VANCE NEAR 15.9N 106.9W 1002 MB AT 0900 UTC OCT
27 MOVING NW OR 310 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM N
SEMICIRCLE...175 NM SE QUADRANT AND 0 NM SW QUADRANT. SEAS 4 M
OR GREATER WITHIN 120 NM NE AND SW QUADRANTS...135 NM NW QUADRANT
AND 75 NM SE QUADRANT WITH SEAS TO 5.5 M. ELSEWHERE WITHIN 17N103W
TO 19N105W TO 18N109W TO 15N109W TO 14N106W TO 15N104W TO
17N103W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA
WITHIN 17N103W TO 20N108W TO 17N114W TO 13N113W TO 12N108W TO
14N104W TO 17N103W ...INCLUDING NEAR CABO CORRIENTES...WINDS 20
KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM VANCE NEAR 18.6N 108.4W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM NE QUADRANT...130 NM SE QUADRANT...0 NM SW
QUADRANT...AND 30 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 75 NM
NE QUADRANT...45 NM SE AND NW QUADRANTS...AND 30 NM NW QUADRANT
WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 20N106W TO 20N108W TO
19N110W TO 17N109W TO 17N108W TO 18N106W TO 20N106W...INCLUDING
NEAR CABO CORRIENTES...WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.
REMAINDER OF AREA WITHIN 20N106W TO 21N108W TO 20N111W TO 16N111W
TO 17N106W TO 18N105W TO 20N106W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM VANCE NEAR 21.7N 108.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM W SEMICIRCLE...40 NM NE QUADRANT AND 80 NM SE
QUADRANT. SEAS 4 M OR GREATER WITHIN 45 NM NE SEMICIRCLE...AND
15 NM SW SEMICIRCLE WITH SEAS TO 4.0 M. ELSEWHERE WITHIN 22N106W
TO 22N107W TO 22N108W TO 21N109W TO 21N108W TO 21N107W TO
22N106W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 TO 33 KT.
SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 23N106W TO 23N109W TO
22N111W TO 20N110W TO 21N109W TO 20N106W TO 23N106W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.5 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.
..GALE WARNING
.WITHIN 16N94W TO 16N95W TO 16N96W TO 15N95W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 35 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN 16N94W TO 15N95W
TO 16N96W TO 15N97W TO 13N96W TO 15N94W TO 16N94W N TO NE WINDS
20 TO 30 KT. SEAS 2.5 TO 3.0 M.
09 HOUR FORECAST LITTLE CHANGE
EXCEPT WINDS BELOW GALE FORCE.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST LITTLE CHANGE.
.SYNOPSIS AND FORECAST.
.COLD FRONT NEARING 30N140W FROM WNW OF AREA. OVER FORECAST
WATERS WITHIN 30N137W TO 30N140W TO 28N140W TO 28N139W TO
30N137W SE TO S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST COLD FRONT FROM 30N139W TO 28N140W. WITHIN
30N136W TO 30N139W TO 28N137W TO 29N136W TO 30N136W SE TO S WINDS
20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WEAK STATIONARY FRONT FROM 30N138.5W TO
26N138W. CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN
2.5 M.
.WITHIN 02S100W TO 00N108W TO 00N116W TO 01S120W TO 03.4S120W TO
03.4S98W TO 02S100W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
MIXED N TO NE AND S TO SW SWELL.
.24 HOUR FORECAST WITHIN 02N105W TO 01N117W TO 03.4S120W TO
03S104W TO 02N105W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
MIXED SWELL.
.48 HOUR FORECAST WITHIN 01N113W TO 01N128W TO 00N129W TO
01S120W TO 03.4S120W TO 03.4S108W TO 01N113W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED NE AND S TO SW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0600 UTC TUE OCT 27...
TROPICAL STORM VANCE
NUMEROUS MODERATE TO STRONG BETWEEN 75
NM AND 210 NM E THROUGH SE QUADRANTS.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM SW CARIBBEAN AT 12N75W TO ALONG BORDER OF
COLOMBIA AND PANAMA TO 07N81W TO 08N86W TO WELL SE OF TROPICAL
STORM VANCE AT 08N08W. RESUMES WELL SSW OF VANCE FROM 09N109W TO
06N120W TO 1011 MB LOW PRES AT 07N133W TO 04N140W. WIDELY SCATTERED
MODERATE ISOLATED STRONG FROM 03.4S TO 01N BETWEEN 77W AND 84W...
AND FROM 01N TO 07N BETWEEN 84W AND 114W. SIMILAR CONVECTION FROM
00N TO 06N BETWEEN 130W AND 140W.
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
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