HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SUN FEB 18 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SUN FEB 18.
24 HOUR FORECAST VALID 1800 UTC MON FEB 19.
48 HOUR FORECAST VALID 1800 UTC TUE FEB 20.

.WARNINGS.
...GALE WARNING...

.09 HOUR FORECAST GULF OF CALIFORNIA COLD FRONT FROM 32N115W TO 
28N114W. FROM 29.5N TO 31N SW TO W WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 32N114W TO 28N114W. FROM 29.5N 
TO 31.5N SW TO W WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. NW OF 
FRONT NW WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. 
.33 HOUR FORECAST COLD FRONT FROM 31N113W TO 28N112W. S OF FRONT 
TO 29N SW TO W WINDS 20 TO 30 KT. SEAS TO 8 FT. NW OF FRONT NW 
TO N WINDS 25 TO 35 KT. SEAS TO 10 FT. 
.42 HOUR FORECAST FRONT E OF AREA. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. 

.SYNOPSIS AND FORECAST.

.FROM 13N TO 22N BETWEEN 134W AND 140W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN MIXED SWELL.  
.24 HOUR FORECAST FROM 20N TO 27N BETWEEN 137W AND 140W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 8 FT. FROM 07N TO 20N BETWEEN 133W 
AND 140W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL. FROM 
28.5N TO 30N E OF 133W NW TO N WINDS 20 TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 20N TO 26N BETWEEN 123W AND 140W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 11 FT. ELSEWHERE WITHIN AREA BOUNDED 
BY LINE FROM 30N140W TO 30N116W TO 26N115W TO 09N140W TO 30N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN MIXED SWELL...HIGHEST 
SEAS AT 29N123W. 

.WITHIN 75 NM OF LINE FROM 12N86.5W TO 09.5N89W...INCLUDING THE 
GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST WITHIN 75 NM OF LINE FROM 12N86.5W TO 
10N90W... INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 
25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  

.06 HOUR FORECAST WITHIN 15 NM OF LINE FROM 16N95W TO 
14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

.09 HOUR FORECAST N OF 05N BETWEEN 79W AND 81W...INCLUDING THE
W GULF OF PANAMA...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 2100 UTC SUN FEB 18... 

.ISOLATED MODERATE TO STRONG CONVECTION WITHIN 90 NM OF LINE 
FROM 20N118W TO 14.5N128W.  

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...TROUGH FROM 
09N85W TO 07N100W. ITCZ FROM 07N100W TO 07.5N140W. ISOLATED 
MODERATE TO STRONG CONVECTION WITHIN 30 NM OF LINES FROM 
06.5N77W TO 01N90W AND FROM 09N83W TO 05N87W. 

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