773
FZPN03 KNHC 212100
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED OCT 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED OCT 21.
24 HOUR FORECAST VALID 1800 UTC THU OCT 22.
48 HOUR FORECAST VALID 1800 UTC FRI OCT 23.
.WARNINGS.
..HURRICANE WARNING
.TROPICAL STORM VANCE NEAR 9.4N 99.8W 1003 MB AT 2100 UTC OCT 21
MOVING W OR 265 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS
45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N SEMICIRCLE AND
0 NM S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 30 NM OF CENTER
EXCEPT 0 NM SE QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN
11N99W TO 11N101W TO 10N102W TO 08N101W TO 08N99W TO 10N98W TO
11N99W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA
WITHIN 11N96W TO 13N100W TO 10N103W TO 07N102W TO 07N100W TO
08N97W TO 11N96W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED
SWELL.
.24 HOUR FORECAST TROPICAL STORM VANCE NEAR 9.8N 101.3W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NE QUADRANT...70 NM SE QUADRANT...50 NM SW
QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90
NM OF CENTER WITH SEAS TO 6.5 M. ELSEWHERE WITHIN 11N99W TO
13N102W TO 11N104W TO 09N104W TO 08N102W TO 08N100W TO 11N99W
WINDS 20 TO 33 KT. SEAS DESCRIBED ABOVE. REMAINDER AREA WITHIN
11N97W TO 14N103W TO 09N106W TO 05N104W TO 04N100W TO 07N96W TO
11N97W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED SWELL.
.36 HOUR FORECAST HURRICANE VANCE NEAR 10.4N 102.1W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.48 HOUR FORECAST HURRICANE VANCE NEAR 11.2N 102.7W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM NE QUADRANT...120 NM SE QUADRANT...80 NM SW
QUADRANT...AND 130 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN
210 NM OF CENTER...EXCEPT 240 NM NW QUADRANT WITH SEAS TO 10.0 M.
ELSEWHERE WITHIN 11N97W TO 17N101W TO 17N106W TO 12N110W TO
07N108W TO 05N100W TO 11N97W WINDS 20 TO 33 KT. SEAS DESCRIBED
ABOVE. REMAINDER AREA WITHIN 14N99W TO 15N102W TO 14N106W TO
11N106W TO 08N103W TO 09N100W TO 14N99W WINDS 20 KT OR LESS. SEAS
2.5 TO 4.0 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.
..GALE WARNING
.WITHIN 15N95W TO 16N95W TO 16N96W TO 14N97W TO 13N96W TO 14N95W
TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 14N94W TO
16N94W TO 16N95W TO 14N98W TO 13N97W TO 12N95W TO 14N94W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
06 HOUR FORECAST LITTLE CHANGE
EXCEPT WINDS TO GALE FORCE.
18 HOUR FORECAST LITTLE CHANGE
EXCEPT WINDS BELOW GALE FORCE.
.24 HOUR FORECAST LITTLE CHANGE.
30 HOUR FORECAST LITTLE CHANGE
EXCEPT WINDS TO GALE FORCE.
42 HOUR FORECAST LITTLE CHANGE
EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST LITTLE CHANGE.
.SYNOPSIS AND FORECAST.
.COLD FRONT FROM 30N120W TO 22N130W. WITHIN 30N121W TO 30N140W
TO 24N140W TO 24N129W TO 30N121W NW TO N WINDS 20 TO 25 KT. SEAS
2.5 TO 4.5 M IN N SWELL.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 31N113W TO
20N117W. WITHIN 30N120W TO 30N140W TO 17N140W TO 18N127W TO
21N121W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. CONDITIONS IMPROVE.
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 2045 UTC WED OCT 21...
T.S. VANCE
SCATTERED MODERATE TO STRONG WITHIN 60 NM OF
CENTER. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE FROM 02N TO
15N BETWEEN 90W AND 103W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM 11N86W TO 11N95W. IT RESUMES NEAR 08N100W TO
04N110W. ITCZ FROM 04N110W 05N140W. SCATTERED MODERATE ISOLATED
STRONG FROM 00N TO 08N EAST OF 83W...AND FROM 01N TO 09N BETWEEN
110W AND 140W.
.FORECASTER AL. NATIONAL HURRICANE CENTER.
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