000 FZPN03 KNHC 210306 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC WED SEP 21 2011 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 WED SEP 21. 24 HOUR FORECAST VALID 0000 UTC THU SEP 22. 48 HOUR FORECAST VALID 0000 UTC FRI SEP 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST .LOW PRES NEAR 13N96W 1007 MB. WITHIN 120 NM N SEMICIRCLE NE TO E WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE N OF 15N BETWEEN 94W AND 97W INCLUDING GULF OF TEHUANTEPEC N WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 04N TO 10N BETWEEN 92W AND 110W S TO SW WINDS 20 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 14N97W 1005 MB. WITHIN 180 NM OF CENTER WINDS 25 TO 30 KT WITH HIGHER GUSTS. SEAS TO 10 TO 12 FT. ELSEWHERE N OF 15N BETWEEN 94W AND 97W INCLUDING GULF OF TEHUANTEPEC N TO NE WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 07N TO 10N BETWEEN 94W AND 113W WINDS LESS THAN 20 KT. SEAS TO 9 FT. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 15N99W 1000 MB. WITHIN 240 NM OF CENTER WINDS 25 TO 30 KT WITH HIGHER GUSTS. SEAS 10 TO 15 FT. ELSEWHERE N OF 14N BETWEEN 94W AND 96W INCLUDING GULF OF TEHUANTEPEC N TO NE WINDS 20 KT. SEAS TO 8 FT. FROM 08N TO 10N BETWEEN 100W AND 116W WINDS LESS THAN 20 KT. SEAS TO 8 FT. .24 HOUR FORECAST N OF 26N W OF 135W WINDS LESS THAN 20 KT. SEAS 8 TO 11 FT IN NW SWELL. .48 HOUR FORECAST W OF LINE 30N121W 12N140W WINDS LESS THAN 20 KT. SEAS 8 TO 10 FT IN NW SWELL. .REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0215 UTC WED SEP 21... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH AXIS EXTENDS FROM 09N80W TO 1007 MB LOW NEAR 13N96W TO 10N105W TO 14N114W TO 1007 MB LOW NEAR 12N121W TO 11N130W TO 1008 MB LOW NEAR 10N136W TO 10N140W. ISOLATED MODERATE CONVECTION IS FROM 05N TO 09N BETWEEN 81W AND 86W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS FROM 08N TO 18N BETWEEN 90W AND 103W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS FROM 08N TO 13N BETWEEN 112W AND 115W. $$ .FORECASTER FORMOSA. NATIONAL HURRICANE CENTER.