599 FZPN03 KNHC 272107 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC THU SEP 27 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 1800 UTC THU SEP 27. 24 HOUR FORECAST VALID 1800 UTC FRI SEP 28. 48 HOUR FORECAST VALID 1800 UTC SAT SEP 29. .WARNINGS. ...HURRICANE WARNING... .HURRICANE ROSA NEAR 16.9N 115.9W 953 MB AT 2100 UTC SEP 27 MOVING W OR 265 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE QUADRANT...70 NM SE QUADRANT...60 NM SW QUADRANT...AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM N SEMICIRCLE...180 NM SE QUADRANT AND 150 NM SW QUADRANT WITH SEAS TO 37 FT. ELSEWHERE WITHIN 150 NM OF CENTER EXCEPT 210 NM NW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. FROM 10N TO 14N BETWEEN 111W AND 117W S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. REMAINDER OF AREA FROM 10N TO 23N BETWEEN 109W AND 121W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE ROSA NEAR 17.5N 118.1W. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM W SEMICIRCLE...100 NM NE QUADRANT AND 110 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM N SEMICIRCLE AND 210 NM S SEMICIRCLE WITH SEAS TO 42 FT. ELSEWHERE WITHIN 180 NM NE AND SW QUADRANT...300 NM SE QUADRANT AND 210 NM NW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 10N TO 24N BETWEEN 109W AND 127W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE ROSA NEAR 19.8N 119.0W. MAXIMUM SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM E SEMICIRCLE AND 90 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 300 NM N SEMICIRCLE AND 240 NM S SEMICIRCLE WITH SEAS TO 45 FT. ELSEWHERE WITHIN 210 NM N SEMICIRCLE...300 NM SE QUADRANT AND 180 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. WITHIN 120 NM SE OF A LINE FROM 13N122W TO 09N132W S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA BOUNDED BY 26N125W TO 26N113W TO 15N105W TO 04N126W TO 08N135W TO 26N125W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE ROSA NEAR 23.5N 119.0W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST TROPICAL STORM ROSA NEAR 26.5N 117.0W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. .120 HOUR FORECAST TROPICAL STORM ROSA OVER GULF OF CALIFORNIA NEAR 31.0N 114.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 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. .LOW PRES NEAR 11N97W 1008 MB. WITHIN 180 NM N SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. POSSIBLE TROPICAL CYCLONE FORMATION. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 11N99W 1007 MB. WITHIN 180 NM N QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 10N TO 15N BETWEEN 95W AND 101W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 12.5N102W 1006 MB. WITHIN 150 NM NE SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. ELSEWHERE FROM 10N TO 16N BETWEEN 98W AND 105W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .GULF OF TEHUANTEPEC WITHIN 15 NM EITHER SIDE OF A LINE FROM 16N95W TO 14.5N95.5W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 2030 UTC THU SEP 27... .HURRICANE ROSA...NUMEROUS MODERATE TO STRONG WITHIN 180 NM OF CENTER EXCEPT 150 NM NW QUADRANT. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE BETWEEN 180 NM AND 360 NM SE SEMICIRCLE. .LOW PRES NEAR 11N97W...SCATTERED MODERATE ISOLATED STRONG FROM 10N TO 15N BETWEEN 90W AND 101W. WIDELY SCATTERED MODERATE ISOLATED STRONG WITHIN 300 NM SE QUADRANT. .SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM W OF A LINE FROM 07N101W TO 15N106W TO 23N104W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH AXIS EXTENDS FROM 10N74W TO LOW PRES 11N97W TO 10N105W THEN RESUMES FROM 13N118W TO 09N133W. ITCZ AXIS EXTENDS FROM 09N133W TO 10N140W. SCATTERED MODERATE ISOLATED STRONG FROM 04N TO 08N BETWEEN 79W AND 87W...FROM 04N TO 10N BETWEEN 101W AND 105W...AND FROM 10N TO 12N BETWEEN 128W AND 131W. $$ .FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.