000
FZPN03 KNHC 130304
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI SEP 13 2013

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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. 

SYNOPSIS VALID 0000 UTC FRI SEP 13.
24 HOUR FORECAST VALID 0000 UTC SAT SEP 14.
48 HOUR FORECAST VALID 0000 UTC SUN SEP 15.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST. 

.LOW PRES NEAR 15N100W 1000 MB. WITHIN 120 NM NE QUADRANT E TO 
SE WINDS 20 TO 25 KT. SEAS TO 9 FT. WITHIN 270 NM SE SEMICIRCLE 
OF LOW WINDS 20 TO 25 KT. SEAS 9 TO 13 FT IN MIXED SW SWELL. 
ELSEWHERE FROM 09N TO 14N BETWEEN 97W AND 102W WINDS 20 TO 25 
KT. SEAS 9 TO 10 FT. FROM 08.5N TO 12N BETWEEN 102W TO 106W AND 
FROM 09N TO 11N BETWEEN 106W AND 110W SW TO W WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. REMAINDER OF AREA FROM 06N TO 16N BETWEEN 91W 
AND 112W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SW SWELL. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15.5N101W 998 MB. WITHIN 120 NM N SEMICIRCLE WINDS 20 TO 25 KT. 
SEAS TO 10 FT. WITHIN 300 NM SE SEMICIRCLE WINDS 25 TO 30 KT. 
SEAS 8 TO 13 FT. ELSEWHERE FROM 07N TO 12N BETWEEN 97.5W AND 
110W WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. FROM 08N TO 11N BETWEEN 
110W AND 118W SW TO W WINDS 20 TO 25 KT. SEAS TO 9 FT IN MIXED 
SW SWELL. ELSEWHERE FROM 08N TO 16.5N BETWEEN 90W AND 111W WINDS 
20 KT OR LESS. SEAS TO 9 FT IN MIXED SW SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
17N100W 1002 MB. WITHIN 300 NM SE OF LINE FROM 17N100W TO 
13N112W TO 10N120W SW WINDS 20 TO 25 KT. SEAS 8 TO 14 FT IN 
MIXED SW SWELL. ELSEWHERE FROM 08N TO 16N BETWEEN 93W AND 110W 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SW SWELL.
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID 0200 UTC FRI SEP 13...

.LOW PRES NEAR 15N100W...SCATTERED MODERATE TO STRONG WITHIN 150 
NM NW SEMICIRCLE OF LOW. SCATTERED STRONG ELSEWHERE FROM 12.5N 
TO 15.5N BETWEEN 94.5W TO 98.5W. SCATTERED MODERATE ISOLATED 
STRONG FROM 09N TO 13N BETWEEN 99W AND 110W. 
 
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...                
THE MONSOON TROUGH IS RATHER ILL DEFINED ACROSS E PORTIONS OF 
THE AREA...AND EXTENDS FROM THE EXTREME SW CARIB NEAR 11N80W AND 
MEANDERS NW ACROSS CENTRAL AMERICA TO LOW PRES ACROSS THE BAY OF 
CAMPECHE...WHERE IT HAS BEGUN TO FRACTURE. THE TROUGH THEN 
RESUMES THROUGH THE CHIVELA PASS AND THE GULF OF TEHUANTEPEC TO 
LOW PRES NEAR 15N100W TO 17N108W TO LOW PRES 11.5N122W TO  
08N128W TO 10N133W TO 09N137W...WHERE IT TRANSITIONS TO 
ITCZ...CONTINUING ON TO BEYOND 09N140W. SCATTERED MODERATE TO   
STRONG CONVECTION NOTED WITHIN 180 NM S OF TROUGH BETWEEN 105W 
AND 110W. SCATTERED STRONG CONVECTION NOTED WITHIN 60 NM OF 
MEXICAN COAST FROM MANZANILLO AREA TO E COAST OF GULF OF 
CALIFORNIA NEAR 25N108.5W. 
 
$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.