000
FZPN03 KNHC 200949
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC MON SEP 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON SEP 20.
24 HOUR FORECAST VALID 0600 UTC TUE SEP 21.
48 HOUR FORECAST VALID 0600 UTC WED SEP 22.

.WARNINGS.

.NONE.
 
.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 19N107W 1003 MB MOVING NW 8 KT. WITHIN 90 NM NW 
SEMICIRCLE WINDS 20 TO 25 KT. SEAS TO 8 FT. WITHIN 150 NM SE 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. FROM 09N TO 16N 
BETWEEN 101W AND 116W SW TO W WINDS 20 TO 25 KT. SEAS 9 TO 12 FT 
IN SW SWELL. ELSEWHERE FROM 08N TO 20N BETWEEN 97W AND 117W 
WINDS LESS THAN 20 KT. SEAS TO 9 FT IN SW SWELL.
.24 HOUR FORECAST LOW NEAR 21N109W 1002 MB...POSSIBLE TROPICAL 
CYCLONE. WITHIN 120 NM E SEMICIRCLE WINDS 20 TO 25 KT. SEAS TO 9 
FT. 
.48 HOUR FORECAST LOW PRES 22N111.5W 1006 MB. WITHIN 90 NM NW 
SEMICIRCLE WINDS TO 20 KT. SEAS TO 8 FT.  

.LOW PRES NEAR 13N124W 1008 MB MOVING NE 5 KT. WITHIN 90 NM NW 
SEMICIRCLE WINDS TO 20 KT. SEAS TO 8 FT. WITHIN 120 NM SE 
SEMICIRCLE WINDS 20 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 08N TO 
13N BETWEEN 116W AND 129W SW TO W WINDS 20 TO 25 KT. SEAS 8 T0 
10 FT IN PRIMARILY SW SWELL.
.24 HOUR LOW PRES 13.5N122W 1006 MB. WITHIN 90 NM NW SEMICIRCLE 
WINDS TO 20 KT. SEAS 8 TO 9 FT. WITHIN 150 NM SE SEMICIRCLE 
WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE FROM 09N TO 14N 
BETWEEN 117W AND 126W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT 
IN SW SWELL. ELSEWHERE FROM 09N TO 15N BETWEEN 102W AND 117W SW 
TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN SW SWELL. 
.48 HOUR FORECAST LOW PRES 14N119W 1006 MB. WITHIN 60 NM NW 
QUADRANT WINDS TO 20 KT. SEAS 8 FT. WITHIN 180 NM S SEMICIRCLE 
WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE FROM 09N TO 14N 
BETWEEN 112W AND 120W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT 
IN SW SWELL. ELSEWHERE FROM 09N TO 13N BETWEEN 100W AND 112W SW 
TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. FROM 06N TO 10N BETWEEN 
90W AND 100W SW TO W WINDS 20 KT. SEAS TO 8 FT. 

.N OF 22N BETWEEN 113W AND 121W NW TO N WINDS 20 TO 25 KT. SEAS 
TO 9 FT. ELSEWHERE N OF 20N BETWEEN 114W AND 120W WIND LESS THAN 
20 KT. SEAS TO 8 FT IN MIXED NW AND SW SWELL.
.24 HOUR FORECAST N OF 27N E OF 122W TO W COAST OF BAJA 
CALIFORNIA NW TO N WINDS 20 KT. SEAS 8 FT. ELSEWHERE N OF 22N 
BETWEEN 114W AND 120W WINDS LESS THAN 20 KT. SEAS TO 8 FT IN 
MIXED NW AND SW SWELL. 
.48 HOUR FORECAST N OF 29N BETWEEN 118W AND 121W NW TO N WINDS TO
20 KT. SEAS TO 8 FT.

.DISSIPATING COLD FRONT FROM 30N125.5W TO 26N132W TO 25N140W. NW 
OF FRONT WINDS LESS THAN 20 KT. SEAS TO 8 FT IN NW SWELL.
.24 HOUR FORECAST FRONT DISSIPATED. WINDS LESS THAN 20 KT. SEAS 
LESS THAN 8 FT.

.48 HOUR FORECAST GULF OF CALIFORNIA N OF 28N SE TO S WINDS 20 
KT.  SEAS LESS THAN 8 FT.

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

CONVECTION VALID AS OF 0930 UTC MON SEP 20...

.SCATTERED MODERATE TO ISOLATED STRONG N OF 14N TO THE COAST OF 
MAINLAND MEXICO BETWEEN 100W AND 105W. 

.LOW PRES 19N107W...SCATTERED MODERATE TO STRONG WITHIN 180 NM W 
SEMICIRCLE. 

.LOW PRES 13N124W...SCATTERED MODERATE TO STRONG WITHIN 150 NM 
SW QUADRANT. SCATTERED MODERATE WITHIN 60 NM NE QUADRANT.

INTERTROPICAL CONVERGENCE ZONE...MONSOONAL S TO SW FLOW 
DOMINATES THE DEEP TROPICS ACROSS THE AREA...WITH A MONSOON 
TROUGH EXTENDING FROM 16N103W TO 13N112W TO LOW PRES 13N124W 
1009 MB TO 11N130W TO 10N140W. SCATTERED MODERATE CONVECTION 
WITHIN WAS NOTED WITHIN 270 NM S OF AXIS E OF 110W. SCATTERED TO 
LOCALLY NUMEROUS ISOLATED STRONG CONVECTION WAS NOTED WITHIN 180 
NM S OF AXIS W OF 110W. 

$$
.FORECASTER STRIPLING. TROPICAL PREDICTION CENTER.