404  
FZPN03 KNHC 231450  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1630 UTC FRI OCT 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 1200 UTC FRI OCT 23.  
24 HOUR FORECAST VALID 1200 UTC SAT OCT 24.  
48 HOUR FORECAST VALID 1200 UTC SUN OCT 25.  
 
.WARNINGS.  
   
..HURRICANE WARNING  
 
.HURRICANE VANCE NEAR 10.7N 102.1W 979 MB AT 1500 UTC OCT 23  
MOVING NW OR 325 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 80 KT  
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE  
QUADRANT...180 NM SE QUADRANT...50 NM SW QUADRANT...AND 120 NM  
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 200 NM NE  
QUADRANT...180 NM SE QUADRANT...90 NM SW QUADRANT...AND 150 NM  
NW QUADRANT WITH SEAS TO 10.0 M. ELSEWHERE WITHIN 14N99W TO  
15N103W TO 13N106W TO 10N105W TO 08N103W TO 09N99W TO 14N99W  
WINDS 20 TO 33 KT. SEAS DESCRIBED ABOVE. REMAINDER AREA WITHIN  
16N101W TO 14N109W TO 08N108W TO 05N106W TO 06N99W TO 09N97W TO  
16N101W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED SWELL.  
.24 HOUR FORECAST HURRICANE VANCE NEAR 12.3N 102.9W. MAXIMUM  
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS  
WITHIN 160 NM NE QUADRANT...190 NM SE QUADRANT...70 NM SW  
QUADRANT...AND 120 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN  
210 NM OF CENTER WITH SEAS TO 11.0 M. ELSEWHERE WITHIN 15N99W TO  
17N102W TO 15N106W TO 12N107W TO 10N104W TO 10N101W TO 15N99W  
WINDS 20 TO 33 KT. SEAS DESCRIBED ABOVE. REMAINDER AREA WITHIN  
17N99W TO 18N109W TO 11N113W TO 04N107W TO 04N99W TO 07N97W TO  
17N99W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED SWELL.  
.48 HOUR FORECAST HURRICANE VANCE NEAR 14.4N 103.6W. MAXIMUM  
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS  
WITHIN 150 NM NE QUADRANT...170 NM SE QUADRANT...70 NM SW  
QUADRANT...AND 120 NM NW QUADRANT. SEAS 4 M OR GREATER OVER  
FORECAST WATERS WITHIN 240 NM OF CENTER...EXCEPT 270 NM NW  
QUADRANT WITH SEAS TO 11.5 M. ELSEWHERE WITHIN 17N100W TO 18N103W  
TO 15N107W TO 12N105W TO 12N101W TO 14N100W TO 17N100W WINDS 20  
TO 33 KT. SEAS DESCRIBED ABOVE. REMAINDER AREA WITHIN 17N99W TO  
21N112W TO 13N115W TO 06N108W TO 08N101W TO 17N99W 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 16N94W TO 16N95W TO 15N96W TO 15N95W 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 16N95W TO  
15N97W TO 14N97W TO 13N97W TO 14N94W TO 16N94W N TO NE WINDS 20  
TO 30 KT. SEAS 2.5 TO 3.0 M.   
06 HOUR FORECAST LITTLE CHANGE  
EXCEPT WINDS BELOW GALE FORCE.   
12 HOUR FORECAST LITTLE CHANGE  
EXCEPT WINDS TO GALE FORCE.   
24 HOUR FORECAST LITTLE CHANGE  
EXCEPT WINDS BELOW GALE FORCE.  
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 14N96W TO 13N96W 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.  
 
.SYNOPSIS AND FORECAST.  
 
.WITHIN 02S80W TO 01S81W TO 01S85W TO 03.4S89W TO 03S80W TO  
02S80W...INCLUDING THE GULF OF GUAYAQUIL AND EXCEPT LEE OF  
GALAPAGOS ISLANDS... WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW  
SWELL.  
.24 HOUR FORECAST WITHIN 00N86W TO 00N88W TO 02S90W TO 03.4S93W  
TO 03.4S84W TO 00N86W...EXCEPT LEE OF GALAPAGOS ISLANDS... WINDS  
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.  
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.WITHIN 19N123W TO 20N140W TO 12N140W TO 13N126W TO 14N120W TO  
19N123W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.  
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.24 HOUR FORECAST WITHIN 30N120W TO 30N125.5W TO 29.5N124W TO  
29N122.5W TO 29.5N121W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5  
TO 3.0 M IN NW TO N SWELL.  
.42 HOUR FORECAST 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 1450 UTC FRI OCT 23...  
   
HURRICANE VANCE  
NUMEROUS MODERATE TO STRONG WITHIN 150 NM OF  
THE CENTER. NUMEROUS MODERATE ISOLATED STRONG ELSEWHERE FROM 03N  
TO 16N BETWEEN 95W AND 106W.  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH  
 
MONSOON TROUGH FROM 09N84W TO 09N98W. ITCZ FROM 09N110W TO  
03N140W. SCATTERED MODERATE ISOLATED STRONG FROM 01N TO 08N AND  
EAST OF 83W...AND FROM 00N TO 06N BETWEEN 115W AND 140W.  
 
 
.FORECASTER AL. NATIONAL HURRICANE CENTER.  
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