000
FZPN03 KNHC 212126
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE NOV 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE NOV 21.
24 HOUR FORECAST VALID 1800 UTC WED NOV 22.
48 HOUR FORECAST VALID 1800 UTC THU NOV 23.

.WARNINGS.

...GALE WARNING...

.27 HOUR FORECAST WITHIN 60 NM OF THE GULF OF TEHUANTEPEC 
N WINDS INCREASING 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.30 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94W AND 
96W N WINDS 25 TO 35 KT. SEAS BUILDING 8 TO 10 FT.  
.36 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 15N95W TO 
13.5N96W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. 
SEAS 10 TO 14 FT. ELSEWHERE WITHIN ELSEWHERE WITHIN 90 NM OF 
LINE FROM 16N95W TO 15N95W TO 12.5N96W N TO NE WINDS 20 TO 30 
KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST WITHIN 60 NM OF LINE FROM 16N95W TO 14N95.5W 
TO 12N97W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 
40 KT. SEAS 12 TO 16 FT. ELSEWHERE WITHIN 90 NM OF LINE FROM 
16N95W TO 14N95.5W TO 11N97W N TO NE WINDS 20 TO 30 KT. SEAS TO 
8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 30N135W TO BEYOND 21N140W. N OF 28N WITHIN 180 NM 
SE OF TROUGH S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. N OF 
29N W OF TROUGH SW WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE 
NW OF LINE FROM 30N132W TO 23N140W WINDS 20 KT OR LESS. SEAS 8 
TO 9 FT IN MIXED NW AND S SWELL. 
.24 HOUR FORECAST TROUGH DISSIPATED WITH COLD FRONT NW OF AREA. 
NW OF LINE FROM 30N135W TO 27N140W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN NW SWELL. 
.48 HOUR FORECAST STATIONARY FRONT FROM 30N138W TO 28.5N140W. W 
OF LINE FROM 30N129W TO 19N140W WINDS 20 KT OR LESS. SEAS 8 TO 
14 FT PRIMARILY IN NW SWELL...HIGHEST SEAS FAR NW PORTION.

.06 HOUR FORECAST GULF OF CALIFORNIA N OF 26N NW TO N WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT. 
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST FROM 03N TO 06N BETWEEN 103W AND 113W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN MIXED SW AND SE SWELL.
.42 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 2115 UTC TUE NOV 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N75W TO 08N94W. ITCZ FROM 08N94W TO 
08N110W TO 10N130W TO LOW PRES NEAR 12.5N140W 1011 MB. SCATTERED 
MODERATE TO STRONG W OF LINE FROM 10N TO 15N W OF 135W. 

$$
.FORECASTER COBB. NATIONAL HURRICANE CENTER.