000
FZPN03 KNHC 190906
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU OCT 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FRI OCT 19.
24 HOUR FORECAST VALID 0600 UTC SAT OCT 20.
48 HOUR FORECAST VALID 0600 UTC SUN OCT 21.

.WARNINGS.

.NONE.
 
.SYNOPSIS AND FORECAST.    

.LOW PRES 13.5N98W 1007 MB.  WITHIN 120 NM N SEMICIRCLE OF LOW 
WINDS 20 TO 30 KT. SEAS BUILDING TO 10 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N108W 1006 MB. WITHIN 210 NM NE SEMICIRCLE NE TO E WINDS 20 TO 
30 KT. SEAS TO 11 FT.   
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N110W 1006 MB. WITHIN 120 NM NE SEMICIRCLE E TO SE WINDS 20 TO 
25 KT. SEAS TO 9 FT.

.LOW PRES 13N92W 1007 MB. WITHIN 120 NM NE QUADRANT E TO SE 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 13.5N96.5W 1007 MB. WITHIN 180 
NM NE SEMICIRCLE...INCLUDING THE GULF OF TEHUANTEPEC...NE TO E 
WINDS 20 TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW PRES NEAR 15N101W 1006 MB. WITHIN 180 NM 
NE SEMICIRCLE E TO SE WINDS 20 TO 30 KT. SEAS TO 10 FT.

.WITHIN 30 NM OF LINE FROM 16N95W TO 13.5N97W...INCLUDING THE 
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS BUILDING 
TO 10 FT. 
.24 HOUR FORECAST CONDITIONS MERGE.

.LOW PRES 12N119W 1008 MB. WITHIN 60 NM E SEMICIRCLE SE TO S 
WINDS 20 KT OR LESS. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 12N120W 1008 MB WITH TROUGH NE 
TO 16N117W. WITHIN 60 NM SE QUADRANT OF LOW AND WITHIN 90 NM W 
OF TROUGH WINDS 20 KT OR LESS. SEAS TO 8 FT. 
.48 HOUR FORECAST LOW PRES NEAR 12N119W 1008 MB. WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

.TROUGH FROM 10N139W TO 15N137W. FROM 12N TO 15N W OF 132W NE TO 
E WINDS 20 TO 25 KT. SEAS TO 10 FT. ELSEWHERE WITHIN AREA 
BOUNDED BY A LINE FROM 30N140W TO 30N135W TO 20N125W TO 08N140W 
TO 30N140W WINDS 20 KT OR LESS. SEAS TO 9 FT PRIMARILY IN MIXED 
SWELL. 
.24 HOUR FORECAST TROUGH W OF AREA. WITHIN AREA BOUNDED BY 
24N140W TO 24N124W TO 00N140W TO 24N140W WINDS 20 KT OR LESS. 
SEAS TO 9 FT PRIMARILY IN MIXED SWELL. 
.48 HOUR FORECAST FROM 11N TO 23N W OF 133W WINDS 20 KT OR LESS. 
SEAS TO 9 FT PRIMARILY IN MIXED SWELL.  

.GULF OF CALIFORNIA N OF 29N NW WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  

.36 HOUR FORECAST FROM 01N TO 04N BETWEEN 80W AND 85W WINDS 20 
KT OR LESS. SEAS TO 8 FT PRIMARILY IN SW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.  

.48 HOUR FORECAST S OF 03N BETWEEN 110W AND 130W WINDS 20 KT OR 
LESS. SEAS TO 8 FT PRIMARILY IN SW SWELL. 

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

CONVECTION VALID AT 0900 UTC FRI OCT 19...

.LOW PRES 13N92W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
180 NM OF LOW CENTER. 

.LOW PRES 13.5N99W...SCATTERED MODERATE ISOLATED STRONG WITHIN 
210 NM W SEMICIRCLE OF LOW CENTER. 

.LOW PRES 12N119W...ISOLATED MODERATE TO STRONG WITHIN 180 NM 
OF LOW CENTER. 

.TROUGH FROM 10N139W TO 15N137W...SCATTERED MODERATE ISOLATED 
STRONG WITHIN 330 NM E AND 90 NM W OF TROUGH AXIS.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 12N96W TO LOW PRES 13N92W TO LOW PRES 
13.5N98W TO 12N108W TO 13.5N115W TO LOW PRES 12N119W TO 09N125W 
TO 11N140W. ISOLATED MODERATE TO STRONG ELSEWHERE WITHIN 120 NM 
OF LINE FROM 05N78W TO 11N89W TO 10N95W TO 12N113W TO 08N120W TO 
09N140W.  

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.