811 FZPN03 KNHC 041545 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC THU OCT 04 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC THU OCT 04. 24 HOUR FORECAST VALID 1200 UTC FRI OCT 05. 48 HOUR FORECAST VALID 1200 UTC SAT OCT 06. .WARNINGS. ...HURRICANE WARNING... .HURRICANE SERGIO NEAR 15.0N 119.3W 943 MB AT 1500 UTC OCT 04 MOVING NW OR 320 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM S SEMICIRCLE...120 NM NE QUADRANT AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM NE QUADRANT...330 NM SE QUADRANT... 270 NM SW QUADRANT...AND 300 NM NW QUADRANT WITH SEAS TO 44 FT. ELSEWHERE WITHIN 210 NM NE...330 NM SE...450 NM SW...AND 270 NM NW QUADRANTS WINDS 20 TO 33 KT. SEAS 10 TO 20 FT. REMAINDER OF AREA FROM 06.5N TO 25N BETWEEN 103W AND 129W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE SERGIO NEAR 16.0N 121.5W. MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM E SEMICIRCLE...110 NM SW QUADRANT AND 130 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM NE AND 360 NM SW SEMICIRCLES WITH SEAS TO 46 FT. ELSEWHERE WITHIN 300 NM N AND 240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 12 TO 20 FT. REMAINDER OF AREA N OF 07N BETWEEN 107W AND 140W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE SERGIO NEAR 15.7N 124.1W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM N SEMICIRCLE...120 NM SE QUADRANT AND 110 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 500 NM N AND 420 N S SEMICIRCLES WITH SEAS TO 42 FT. ELSEWHERE WITHIN 330 NM NW AND 270 NM SE SEMICIRCLES WINDS 20 TO 33 KT. SEAS 12 TO 20 FT. REMAINDER OF AREA N OF 05N W OF 110W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE SERGIO NEAR 15.6N 126.6W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE SERGIO NEAR 16.3N 128.2W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. .120 HOUR FORECAST HURRICANE SERGIO NEAR 17.9N 127.6W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 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. .N OF 13.5N BETWEEN 94.5W AND 95.5W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS TO 10 FT. .24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16.5N95W TO 13.5N95.5W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 10 FT. .48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL. .NW OF LINE FROM 30N127W TO 26N126W TO 21N140W TROUGH WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL. .24 HOUR FORECAST NW SWELL CONDITIONS TO MERGE WITH SWELL FROM HURRICANE SERGIO DESCRIBED ABOVE. .FROM 06N TO 09N BETWEEN 84W AND 89W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SW SWELL. .24 HOUR FORECAST FROM 07N TO 10.5N BETWEEN 85W AND 96W SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 04N TO 10N BETWEEN 96W AND 105W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SW SWELL. .48 HOUR FORECAST FROM 07.5N TO 11.5N BETWEEN 85W AND 96W S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 05N TO 11N BETWEEN 96W AND 105W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1500 UTC THU OCT 4... HURRICANE SERGIO...NUMEROUS STRONG WITHIN 45 NM N AND 90 NM S SEMICIRCLES. BANDS OF SCATTERED MODERATE TO STRONG ELSEWHERE WITHIN 120 NM NW AND 210 NM SE SEMICIRCLES. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM LOW PRES 1008 MB IN SW CARIBBEAN NEAR 15.5N81.5W TO 11.5N95W TO 14N109W...THEN RESUMES SW OF SERGIO FROM 12N124W TO 11.5N135W TO BEYOND 10N140W. SCATTERED MODERATE TO STRONG CONVECTION FROM 06.5N TO 13.5N BETWEEN 83W AND 97W...AND WITHIN 120 NM OF TROUGH BETWEEN 124W AND 132W. SCATTERED STRONG CONVECTION FROM 06.5N TO 12.5N BETWEEN 135W AND 142W. $$ .FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.