000
FZPN03 KNHC 180943
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC SAT SEP 18 2010

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT SEP 18.
24 HOUR FORECAST VALID 0600 UTC SUN SEP 19.
48 HOUR FORECAST VALID 0600 UTC MON SEP 20.

.WARNINGS.

.NONE.
 
.SYNOPSIS AND FORECAST.
 
.FROM N OF 26N WITHIN 150 NM OF W COAST OF BAJA CALIFORNIA NW TO 
N WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST N OF 26N E OF 119W TO W COAST OF BAJA 
CALIFORNIA NW TO N WINDS 20 KT. SEAS 8 FT. 
.48 HOUR FORECAST N OF 25N E OF 122W TO W COAST OF BAJA 
CALIFORNIA NW TO N WINDS 20 KT. SEAS TO 8 FT.

.LOW NEAR 15N113W 1008 MB DRIFTING S. WITHIN 180 NM SE 
SEMICIRCLE SW WINDS 20 KT. SEAS TO 9 FT IN MIXED SW SWELL.  
ELSEWHERE FROM 08N TO 16N BETWEEN 96W AND 116W SW TO W WINDS 20 
TO 25 KT. SEAS 9 TO 11 FT IN MIXED SW SWELL. ELSEWHERE S OF 20N 
BETWEEN 96W AND 117W WINDS LESS THAN 20 KT. SEAS 8 TO 11 FT IN 
SW SWELL...HIGHEST BETWEEN 95W AND 110W. S OF 15N E OF 96W WINDS 
LESS THAN 20 KT. SEAS TO 8 FT IN SW SWELL.
.24 HOUR FORECAST LOW DISSIPATED. NEW LOW NEAR 15N109W 1005 MB. 
WITHIN 330 NM S SEMICIRCLE WINDS 2O TO 25 KT. SEAS 8 TO 12 FT. 
ELSEWHERE FROM 07N TO 18N BETWEEN 90W AND 118W WINDS LESS THAN 
20 KT. SEAS TO 10 FT IN SW SWELL.
.48 HOUR FORECAST LOW NEAR 15.5N109W 1005 MB. WITHIN 240 NM NE 
QUADRANT AND S SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. 
ELSEWHERE FROM 07N TO 16N BETWEEN 100W AND 114W WINDS 20 TO 25 
KT. SEAS 8 TO 11 FT IN SW SWELL. ELSEWHERE FROM 07N TO 19N 
BETWEEN 90W AND 114W WINDS LESS THAN 20 KT. SEAS 8 TO 9 FT IN SW 
SWELL.

.LOW NEAR 12N125W 1009 MB DRIFTING NE. WITHIN 270 NM SE 
SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN MIXED SW SWELL.
.24 HOUR FORECAST LOW NEAR 13N123W 1007 MB. WITHIN 240 NM SE 
SEMICIRCLE WINDS 20 KT. SEAS TO 10 FT. ELSEWHERE FROM 07N TO 17N 
BETWEEN 118W AND 126W WINDS LESS THAN 20 KT. SEAS TO 9 FT IN SW 
SWELL.  
.48 HOUR FORECAST LOW NEAR 14N120W 1007 MB. WITHIN 150 NM SW AND 
SE QUADRANTS WINDS 20 KT. SEAS TO 9 FT. ELSEWHERE FROM 08N TO 
14N BETWEEN 114W AND 127W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN 
SW SWELL. 

.COLD FRONT 32N136W TO 28N143W APPROACHING FAR NW CORNER OF 
AREA. N OF 28N WITHIN 150 NM SE OF FRONT SW WINDS 20 KT. SEAS 
LESS THAN 8 FT.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 31N130W TO 26N140W. 
NW OF FRONT WINDS LESS THAN 20 KT. SEAS TO 8 FT.
.48 HOUR FORECAST DISSIPATED. N OF 28N W OF 137W WINDS LESS THAN 
20 KT. SEAS TO 8 FT IN NW SWELL.

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

CONVECTION VALID AS OF 0900 UTC SAT SEP 18...

INTERTROPICAL CONVERGENCE ZONE...ANTICYCLONIC S TO SW WINDS WERE 
FLOWING INTO THE S SIDE OF AN ELONGATED MONSOONAL TROUGH THAT 
DOMINATED S PORTIONS OF THE AREA...WITH AN EASTERN SEGMENT 
EXTENDING FROM THE SW CARIBBEAN ACROSS NICARAGUA AND HONDURAS TO 
OFFSHORE OF THE MEXICAN COAST NEAR 15N96W. A LARGER AND MORE 
CONVECTIVELY ACTIVE SEGMENT OF THIS TROUGH EXTENDED FROM NEAR 
17N103W TO 12N120W TO 12N125W TO 09N140W AND BEYOND. SCATTERED 
TO LOCALLY NUMEROUS CONVECTION WAS OCCURRING S OF THIS TROUGH 
AXIS...N OF 05N BETWEEN 84W AND 93W...AND WITHIN 270 NM OF THE 
MEXICAN COAST BETWEEN 93W AND 106W. SCATTERED MODERATE 
CONVECTION WAS ALSO NOTED WITHIN 90 NM EITHER SIDE OF THE TROUGH 
BETWEEN 120W AND 127W...AND W OF 137W.


$$
.FORECASTER STRIPLING. TROPICAL PREDICTION CENTER.