275
FZPN03 KNHC 260837
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC MON OCT 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON OCT 26.
24 HOUR FORECAST VALID 0600 UTC TUE OCT 27.
48 HOUR FORECAST VALID 0600 UTC WED OCT 28.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM VANCE NEAR 15.3N 105.1W 995 MB AT 0900 UTC OCT
26 MOVING NW OR 305 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE
QUADRANT...70 NM SE QUADRANT...60 NM SW QUADRANT...AND 120 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 165 NM N SEMICIRCLE...105
NM SE QUADRANT AND 150 NM SW QUADRANT WITH SEAS TO 7.0 M.
ELSEWHERE WITHIN 16N100W TO 18N104W TO 17N108W TO 14N108W TO
13N106W TO 14N101W TO 16N100W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M. REMAINDER OF AREA WITHIN 20N107W TO 20N109W TO 15N113W TO
10N108W TO 09N104W TO 14N98W TO 20N107W...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 16.1N 106.9W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM N SEMICIRCLE...50 NM SE QUADRANT AND 40 NM SW
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM N SEMICIRCLE...AND
75 NM S SEMICIRCLE WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 19N104W
TO 18N108W TO 16N109W TO 14N108W TO 13N102W TO 15N102W TO 19N104W
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN
17N102W TO 20N107W TO 17N113W TO 12N111W TO 15N109W TO 13N103W TO
17N102W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM VANCE NEAR 18.5N 108.0W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90
NM NE SEMICIRCLE...AND 30 NM SW SEMICIRCLE WITH SEAS TO 4.5 M.
ELSEWHERE WITHIN 18N103W TO 20N106W TO 20N108W TO 17N110W TO
15N106W TO 15N104W TO 18N103W...INCLUDING NEAR CABO CORRIENTES
...WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN
18N102W TO 21N106W TO 20N110W TO 16N109W TO 14N106W TO 16N103W
TO 18N102W 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 14N96W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 40 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 15N94W TO 16N94W
TO 16N97W TO 14N97W TO 13N97W TO 14N95W TO 15N94W N TO NE WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.12 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 16N96W TO 15N96W TO
13N96W TO 14N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE
WITHIN 16N94W TO 16N96W TO 14N98W TO 13N98W TO 12N97W TO 13N94W
TO 16N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE
SWELL.
.24 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 15N96W TO 14N96W TO
13N96W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
48 HOUR FORECAST LITTLE CHANGE
EXCEPT SEAS LESS THAN 2.5 M.
.SYNOPSIS AND FORECAST.
.WARM FRONT WNW OF AREA. OVER FORECAST WATERS WITHIN 30N139W TO
30N140W TO 28N140W TO 29N139W TO 30N139W SE TO S WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WARM FRONT FROM 30N140W TO 26N140W. WITHIN
30N137W TO 30N140W TO 27N140W TO 28N139W TO 29N138W TO 30N137W
SE TO S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WARM FRONT FROM 30N138.5W TO 26N139.5W.
WITHIN 30N136W TO 30N139W TO 28N139W TO 28N138W TO 28N137W TO
30N136W SE TO S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.06 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 10N88W TO 10N87W TO
10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.12 HOUR FORECAST WITHIN 02.5S116W TO 02.5S117W TO 03.4S118.5W
TO 03.4S114.5W TO 02.5S116W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN MIXED NE AND S TO SW SWELL.
.24 HOUR FORECAST WITHIN 02S101W TO 02S111W TO 01S119W TO
03.4S120W TO 03.4S99W TO 02S101W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN MIXED NE AND S TO SW SWELL.
.48 HOUR FORECAST WITHIN 01N104W TO 01S111W TO 01N112W TO
00N117W TO 03.4S120W TO 03.4S107W TO 01N104W 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 MON OCT 26...
TROPICAL STORM VANCE
NUMEROUS MODERATE ISOLATED TO SCATTERED
STRONG WITHIN 60 NM OF CENTER. NUMEROUS MODERATE ELSEWHERE
WITHIN 120 NM OF CENTER...EXCEPT WITHIN 210 NM NE QUADRANT.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM 11N76W TO ACROSS GULF OF PANAMA TO 07N82.5W
TO 08N87W TO 06.5N95W TO 08N99.5W WELL SE OF TROPICAL STORM
VANCE...THEN RESUMES WELL SW OF VANCE FROM 08N111W TO 1009 MB
LOW PRES NEAR 07N132.5W TO 06.5N135W. ITCZ FROM 06.5N135W TO
07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 03.4S TO 09N
BETWEEN 77W AND 81W...AND FROM 00N TO 11N BETWEEN 89W AND 105W.
SIMILAR CONVECTION FROM 02.5N TO 04.5N BETWEEN 131W AND
134W...AND FROM 01N TO 02.5N BETWEEN 137W AND 140W.
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
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