000
FZPN03 KNHC 190938
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC SUN SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SUN SEP 19.
24 HOUR FORECAST VALID 0600 UTC MON SEP 20.
48 HOUR FORECAST VALID 0600 UTC TUE SEP 21.

.WARNINGS.

.NONE.
 
.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 16N104W 1007 MB DRIFTING NW. WITHIN 210 NM SE 
SEMICIRCLE WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. WITHIN 90 NM NE 
QUADRANT WINDS 20 KT. SEAS 8 TO 9 FT IN SW SWELL.
.24 HOUR FORECAST LOW NEAR 17.5N105W 1002 MB MOVING NW. WITHIN 
240 NM SE SEMICIRCLE WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. WITHIN 
90 NM NW QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE 
FROM 09N TO 15N BETWEEN 101W AND 107W WINDS 20 TO 25 KT. SEAS 9 
TO 12 FT.
.48 HOUR FORECAST LOW NEAR 19N108W 1002 MB...POSSIBLE TROPICAL 
CYCLONE. WITHIN 270 NM SE AND 120 NM NW SEMICIRCLES WINDS 20 TO 
30 KT. SEAS 9 TO 12 FT. 

.LOW PRES NEAR 13N125W 1009 MB MOVING NE 5 KT. WITHIN 180 NM SE 
SEMICIRCLE WINDS 20 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST LOW NEAR 14N126W 1008 MB. WITHIN 120 NM OF 
CENTER WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.48 HOUR FORECAST LOW NEAR 12.5N129W 1009 MB. WITHIN 180 NM SE 
SEMICIRCLE WINDS 20 TO 25 KT. SEAS TO 9 FT. 

.TROUGH FROM 16N98W TO LOW PRES 16N104W 1007 MB TO 12N113W TO 
13N121W TO LOW PRES 13N125W 1009 MB TO 10N132W. S OF TROUGH TO 
08N W OF 120W S TO SW WINDS 20 KT. SEAS TO 8 FT. S OF TROUGH TO 
09N E OF 120W SW TO W WINDS 20 TO 25 KT. SEAS 9 TO 12 FT IN 
MIXED SW SWELL. 
.24 HOUR FORECAST TROUGH FROM 15N107W TO 13N115W TO 15N122W TO 
LOW PRES 14N126W 1008 MB TO 12N130W. EXCEPT AS NOTED ABOVE S OF 
TROUGH TO 09N SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. 
ELSEWHERE FROM 09N TO 19N BETWEEN 100W AND 115W WINDS LESS THAN 
20 KT. SEAS TO 8 FT IN MIXED N AND SW SWELL.
.48 HOUR FORECAST TROUGH FROM 16N109W TO 13N121W TO LOW PRES 
12.5N129W 1009 MB. S OF TROUGH TO 08N SW TO W WINDS 20 TO 25 KT. 
SEAS 8 TO 13 FT. ELSEWHERE NW OF TROUGH TO LINE FROM 21N108W TO 
16N116W TO 12N125W WINDS LESS THAN 20 KT. SEAS 8 TO 10 FT 
PRIMARILY IN SW SWELL.

.COLD FRONT FROM 30N131W TO 26N140W MOVING E 15 KT. N OF 29N  
WITHIN 180 NM E OF FRONT SW WINDS TO 20 KT. SEAS TO 8 FT. N OF 
29N W OF FRONT WINDS LESS THAN 20 KT. SEAS TO 8 FT IN NW SWELL
.24 HOUR FORECAST DISSIPATING FRONTAL TROUGH FROM 30N127W TO
26N140W. NW OF TROUGH WINDS LESS THAN 20 KT. SEAS TO 8 FT IN NW 
SWELL.
.48 HOUR FORECAST TROUGH DISSIPATED. WINDS LESS THAN 20 KT. SEAS 
LESS THAN 8 FT.

.N OF 23N E OF 120W TO W COAST OF BAJA CALIFORNIA NW TO N WINDS 
20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST N OF 24N E OF 122W TO W COAST OF BAJA 
CALIFORNIA NW TO N WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST N OF 28N E OF 121W TO W COAST OF BAJA 
CALIFORNIA NW WINDS 20 KT. SEAS TO 8 FT.

.48 HOUR FORECAST GULF OF CALIFORNIA N OF 27N SE 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 0915 UTC SUN SEP 19...

NUMEROUS MODERATE TO STRONG FROM 17N TO 22N E OF 109W.

.SCATTERED MODERATE ISOLATED STRONG FROM 06N TO 07N BETWEEN 91W
AND 96W.

INTERTROPICAL CONVERGENCE ZONE...MONSOONAL S TO SW FLOW 
DOMINATES THE DEEP TROPICS ACROSS THE AREA...WITH A MONSOONAL 
TROUGH EXTENDING FROM A DEVELOPING LOW NEAR 16N104W 1007 MB TO 
12N113W TO 13N121W TO LOW PRES 13N125W 1009 MB TO 10N132W TO 
10N140W. SCATTERED TO NUMEROUS MODERATE TO STRONG CONVECTION WAS 
OCCURRING WITHIN 90 NM EITHER SIDE OF AXIS FROM 105W TO 112W. 
ELSEWHERE SCATTERED MODERATE CONVECTION WAS OCCURRING WITHIN 120 
NM S OF AXIS. 

$$
.FORECASTER STRIPLING. TROPICAL PREDICTION CENTER.