502  
FZPN03 KNHC 230912  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1030 UTC THU NOV 23 2017  
 
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 THU NOV 23.  
24 HOUR FORECAST VALID 0600 UTC FRI NOV 24.  
48 HOUR FORECAST VALID 0600 UTC SAT NOV 25.  
 
.WARNINGS.  
   
..GALE WARNING
 
   
WITHIN 30 NM OF LINE FROM 16N95W TO 14N95.5W
 
INCLUDING THE  
GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 8 TO 12 FT.  
ELSEWHERE WITHIN 75 NM OF LINE FROM 16N95W TO 14.5N95W TO 13N  
95W N TO NE WINDS 20 TO 30 KT. SEAS TO 9 FT.   
12 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N96W
 
 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT.  
SEAS 11 TO 17 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM 16N95W TO  
14N95.5W TO 11.5N97W N TO NE WINDS 20 TO 30 KT. SEAS 10 TO 15 FT.  
REMAINDER WATERS BOUNDED BY 16N95W TO 12N93W TO 11N96W TO  
11.5N98.5W TO 16N95W WINDS 20 KT OR LESS. SEAS TO 11 FT  
PRIMARILY IN MIXED NE AND SW SWELL.  
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO  
14.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS  
30 TO 35 KT. SEAS 11 TO 16 FT. ELSEWHERE WITHIN 75 NM OF LINE  
FROM 16N95W TO 12.5N96W N TO NE WINDS 20 TO 30 KT. SEAS 10 TO 15  
FT. REMAINDER WATERS BOUNDED BY 16N95W TO 14N93W TO 09N95W TO  
10N102W TO 16N95W WINDS 20 KT OR LESS. SEAS TO 11 FT PRIMARILY  
IN MIXED NE AND SW SWELL.   
36 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 13N96W
 
 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT.  
SEAS 9 TO 13 FT. ELSEWHERE WITHIN 120 NM OF LINE FROM 16N95W TO  
12N97W TO 08.5N101W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY  
IN MIXED NE AND SW SWELL.   
48 HOUR FORECAST GULF OF TEHUANTEPEC
 
N WINDS 20 TO 25 KT.  
SEAS TO 9 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO  
11N97W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED NE AND SW  
SWELL.  
 
.SYNOPSIS AND FORECAST.  
 
.COLD FRONT FROM 30N139W TO 29N140W. W OF LINE FROM 30N132W TO  
25N140W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT PRIMARILY IN NW  
SWELL.  
.24 HOUR FORECAST STATIONARY FRONT FROM 30N138W TO LOW PRES  
29N140W 1012 MB. W OF LINE FROM 30N124W TO 14N140 WINDS 20 KT OR  
LESS. SEAS TO 11 FT PRIMARILY IN NW SWELL.  
.48 HOUR FORECAST LOW PRES N OF AREA TRAIL COLD FRONT 30N136W TO  
20N140W. W OF LINE FROM 30N135W TO 22N123W TO 06N140W WINDS 20  
KT OR LESS. SEAS TO 10 FT PRIMARILY IN NW SWELL.  
 
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N85.5W TO  
10N88W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.  
SEAS TO 8 FT.  
.48 HOUR FORECAST LITTLE CHANGE.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  
 
CONVECTION VALID AT 0900 UTC THU NOV 23...  
 
.SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM OF LINE FROM  
20N135W TO 17N140W.  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
MONSOON TROUGH FROM 09N84W TO 09N105W. ITCZ FROM 09N105W TO  
12N113W TO 07N140W. ISOLATED MODERATE TO STRONG WITHIN 90 NM  
OF LINE FROM 06N77W TO 09N85W TO 08N104W TO 0N116W TO 08N135W.  
 

 
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.  
 
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