000 FZPN03 KNHC 250920 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC TUE SEP 25 2012 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. PAN PAN E PACIFIC FROM THE EQUATOR TO 30N E OF 140W. SYNOPSIS VALID 0600 UTC TUE SEP 25. 24 HOUR FORECAST VALID 0600 UTC WED SEP 26. 48 HOUR FORECAST VALID 0600 UTC THU SEP 27. .WARNINGS. ...HURRICANE WARNING... .HURRICANE MIRIAM NEAR 18.7N 114.3W 968 MB AT 0900 UTC SEP 25 MOVING NW OR 310 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM OF CENTER. SEAS 12 FT OR GREATER WITHIN 210 NM NW AND SE QUADRANTS...240 NM NE QUADRANT AND 180 NM SW QUADRANT WITH SEAS TO 33 FT. .24 HOUR FORECAST HURRICANE MIRIAM NEAR 20.1N 115.0W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. LITTLE CHANGE IN RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. .48 HOUR FORECAST HURRICANE MIRIAM NEAR 22.1N 115.3W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E SEMICIRCLE AND 90 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 210 NM E AND 180 NM W SEMICIRCLES WITH SEAS TO 24 FT. .72 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 24.0N 115.3W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST TROPICAL STORM MIRIAM NEAR 25.7N 114.9W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. .120 HOUR FORECAST POST-TROPICAL REMNANT LOW MIRIAM NEAR 27.2N 114.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .SYNOPSIS AND FORECAST. .EXCEPT AS NOTED IN MIRIAM WARNINGS...WITHIN 270 NM NE...240 NM SE AND NW AND 210 NM SW QUADRANTS WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 11N TO 25N BETWEEN 107W AND 121W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST EXCEPT AS NOTED IN MIRIAM WARNINGS...WITHIN 270 NM NE...240 NM SE AND NW AND 210 NM SW QUADRANTS WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 12N TO 25N BETWEEN 108 AND 122W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST EXCEPT AS NOTED IN MIRIAM WARNINGS...WITHIN 270 NM E AND 240 NM W SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 13N TO 26N BETWEEN 108 AND 122W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .FROM 15N TO 19N W OF 128W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE W OF LINE 30N120W TO 15N128W TO 08N140W WINDS 20 KT OR LESS. SEAS TO 9 FT IN PRIMARILY NW SWELL. .24 HOUR FORECAST FROM 14N TO 17N W OF 135W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE N OF 20N E OF 132W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NW AND SW SWELL. ELSEWHERE FROM 07N TO 20N W OF 122W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN PRIMARILY NW SWELL. .48 HOUR FORECAST FROM 08N TO 12N BETWEEN 105W AND 115W SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 06N TO 13N BETWEEN 102W AND 122W...AND S OF 20N W OF 122W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED NW AND SW SWELL. NW OF LINE 30N122W TO 22N137W WINDS 20 KT OR LESS. SEAS TO 9 FT IN PRIMARILY NW SWELL. .WITHIN 30 NM OF LINE 16N95W TO 14N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 KT OF LESS. SEAS TO 8 FT. .12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0845 UTC WED SEP 25... .HURRICANE MIRIAM NEAR 18.7N 114.3W. NUMEROUS STRONG FROM 17N TO 20N BETWEEN 112W AND 116W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH EXTENDS FROM 09N85W TO 11N97W TO 12N106W...THEN RESUMES FROM 13N118W TO 11N128W THEN ITCZ TO BEYOND 09N140W. SCATTERED MODERATE ISOLATED STRONG IS WITHIN 150 NM S OF TROUGH BETWEEN 82W AND 87W. ISOLATED MODERATE TO STRONG IS BETWEEN THE MONSOON TROUGH AND THE COAST OF MEXICO FROM 95W TO 102W. NUMEROUS MODERATE ISOLATED STRONG FROM 08N TO 10N W OF 137W. $$ .FORECASTER GR. NATIONAL HURRICANE CENTER.