019  
FZPN03 KNHC 091518  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1630 UTC THU NOV 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 1200 UTC THU NOV 09.  
24 HOUR FORECAST VALID 1200 UTC FRI NOV 10.  
48 HOUR FORECAST VALID 1200 UTC SAT NOV 11.  
 
.WARNINGS.  
   
..GALE WARNING
 
 
.GULF OF TEHUANTEPEC N OF 14N BETWEEN 94.5W AND 95.5W N TO NE  
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.  
.06 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W  
TO 15N95W TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO  
NE WINDS 30 TO 35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 60 NM  
EITHER SIDE OF A LINE FROM 16N95W TO 15N95W TO 12N97W N TO NE  
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF THE AREA FROM  
11N TO 13N BETWEEN 94W AND 98W WINDS 20 KT OR LESS. SEAS 8 TO 9  
FT IN MIXED NE AND SW SWELL.  
.18 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W  
TO 15N95W TO 13.5N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO  
NE WINDS 30 TO 35 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 60 NM  
EITHER SIDE OF LINE FROM 16N95W TO 15N95W TO 13N97W N TO NE  
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF THE AREA FROM  
10.5N TO 13N BETWEEN 94W AND 99W WINDS 20 KT OR LESS. SEAS 8 TO  
9 FT IN MIXED NE AND SW SWELL.  
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W  
TO 15N95W TO 13.5N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO  
NE WINDS 30 TO 35 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 60 NM  
EITHER SIDE OF LINE FROM 16N95W TO 15N95W TO 11.5N98W N TO NE  
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF THE AREA FROM  
10N TO 13N BETWEEN 94W AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 9  
FT IN MIXED NE AND SW SWELL.  
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W  
TO 15N95W TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO  
NE WINDS 30 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 60 NM  
EITHER SIDE OF A LINE FROM 16N95W TO 15N95W TO 12N97.5W N TO NE  
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF THE AREA FROM  
09.5N TO 13N BETWEEN 94W AND 102W WINDS 20 KT OR LESS. SEAS 8 TO  
9 FT IN MIXED NE AND SW SWELL.  
 
.SYNOPSIS AND FORECAST.  
 
.COLD FRONT FROM 30N130W TO 27N140W. NW OF FRONT WINDS 20 KT OR  
LESS. SEAS 8 TO 13 FT IN NW SWELL. N OF 29N E OF FRONT TO A LINE  
FROM 30N128W TO 29N131W WINDS 20 KT OR LESS. SEAS 8 FT IN NW  
SWELL.  
.12 HOUR FORECAST COLD FRONT FROM 30N129W TO 26N140W. NW OF A  
LINE FROM 30N122W TO 25N130W TO 24N140W WINDS 20 KT OR LESS.  
SEAS 8 TO 12 FT IN NW SWELL.  
.24 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 30N128W TO  
26N140W. NW OF A LINE FROM 30N116W TO 20N130W TO 14N125W TO  
12N131W TO 18N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW  
SWELL.  
.48 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 30N126W TO  
26N140W. SE OF A LINE FROM 30N120W TO 24N140W TO ANOTHER LINE  
FROM 23N113W TO 11N130W TO 11N140W WINDS 20 KT OR LESS. SEAS 8  
TO 10 FT IN NW SWELL.  
 
.FROM 04N TO 09N BETWEEN 92W AND 115W WINDS 20 KT OR LESS. SEAS  
8 TO 9 FT PRIMARILY IN SW SWELL. FROM 10N TO 19N BETWEEN 122W  
AND 135W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. S  
OF 10S BETWEEN 120W AND 130W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT  
IN MIXED SWELL.  
.24 HOUR FORECAST CONDITIONS MERGED.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  
 
CONVECTION VALID AT 1500 UTC THU NOV 9...  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
THE MONSOON TROUGH AXIS EXTENDS FROM 10N84W TO 09N100W TO 1010  
MB LOW PRESSURE NEAR 10N122W TO 09N140W. SCATTERED MODERATE IS N  
OF 06N E OF 82W...INCLUDING THE GULF OF PANAMA...AND FROM 07N TO  
10N BETWEEN 82W AND 87W. SCATTERED MODERATE TO ISOLATED STRONG  
IS FROM 08N TO 10N BETWEEN 102W AND 107W...AND FROM 08.5N TO 11N  
BETWEEN 120W AND 124W IN ASSOCIATION WITH THE ABOVE MENTIONED  
LOW. SCATTERED MODERATE IS FROM 10N TO 12N BETWEEN 124W AND 128W.  
 

 
.FORECASTER GR. NATIONAL HURRICANE CENTER.  
 
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