000 FZPN03 KNHC 181516 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC WED OCT 18 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 1200 UTC WED OCT 18. 24 HOUR FORECAST VALID 1200 UTC THU OCT 19. 48 HOUR FORECAST VALID 1200 UTC FRI OCT 20. .WARNINGS. ...HURRICANE WARNING... .TROPICAL STORM NORMA NEAR 14.8N 107.9W 991 MB AT 1500 UTC OCT 18 MOVING NNW OR 340 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NW AND SE QUADRANTS...120 NM NE QUADRANT AND 60 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM N SEMICIRCLE...90 NM SE QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO 22 FT. ELSEWHERE WITHIN 16N101W TO 17N108W TO 15N110W TO 10N109W TO 08N107W TO 11N103W TO 16N101W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 17N100W TO 19N108W TO 10N112W TO 05N116W TO 03N110W TO 06N103W TO 17N100W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .12 HOUR FORECAST HURRICANE NORMA NEAR 15.8N 108.1W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE QUADRANT...110 NM SE AND NW QUADRANTS...AND 60 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM OF CENTER... EXCEPT 150 NM NE QUADRANT WITH SEAS TO 24 FT. ELSEWHERE WITHIN 17N104W TO 19N107W TO 18N110W TO 14N111W TO 11N108W TO 12N104W TO 17N104W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 16N102W TO 20N110W TO 16N115W TO 05N114W TO 04N110W TO 07N103W TO 16N102W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE NORMA NEAR 16.9N 108.3W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NW AND SE QUADRANTS...150 NM NE QUADRANT AND 70 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM OF CENTER WITH SEAS TO 27 FT. ELSEWHERE WITHIN 18N103W TO 20N106W TO 20N111W TO 16N111W TO 10N106W TO 11N104W TO 18N103W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 18N102W TO 21N107W TO 19N115W TO 07N123W TO 00N114W TO 00N104W TO 18N102W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE NORMA NEAR 18.7N 109.0W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE QUADRANT...120 NM SE QUADRANT...80 NM SW QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM OF CENTER WITH SEAS TO 34 FT. ELSEWHERE WITHIN 21N105W TO 24N109W TO 20N112W TO 17N111W TO 16N109W TO 18N105W TO 21N105W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .72 HOUR FORECAST HURRICANE NORMA NEAR 20.8N 109.9W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE NORMA NEAR 21.9N 109.9W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. .120 HOUR FORECAST TROPICAL STORM NORMA NEAR 22.5N 109.5W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. ...GALE WARNING... .WITHIN 15N94W TO 16N94W TO 16N95W TO 15N96W TO 14N96W TO 14N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N99W TO 14N99W TO 13N97W TO 13N95W TO 16N94W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA WITHIN 13N94W TO 16N94W TO 13N97W TO 15N99W TO 11N100W TO 11N97W TO 13N94W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL. .03 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE. .24 HOUR FORECAST WITHIN 16N94.5W TO 16.5N95W TO 16N95.5W TO 14N95.5W TO 14N94.5W TO 15N94.5W TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST LITTLE CHANGE. .SYNOPSIS AND FORECAST. .WITHIN 30N120W TO 30N140W TO 09N140W TO 17N129W TO 30N120W WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN NW SWELL...HIGHEST NEAR 30N140W. .24 HOUR FORECAST WITHIN 30N120W TO 30N140W TO 04N140W TO 07N134W TO 20N121W TO 30N120W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN NW SWELL...HIGHEST NW HALF. .48 HOUR FORECAST EXCEPT AS NOTED WITH NORMA...WITHIN 18N103W TO 30N116W TO 30N140W TO 02N140W TO 00N112W TO 04N104W TO 18N103W... INCLUDING SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL. .WITHIN 03S109W TO 02S112W TO 01S115W TO 03.4S120W TO 03.4S108W TO 03S109W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST WITHIN 01S107W TO 00N111W TO 00N120W TO 03.4S120W TO 03.4S105W TO 01S107W WINDS 20 KT OR LESS. SEAS 8 FT IN MERGING SW AND NW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1450 UTC WED OCT 18... .TROPICAL STORM NORMA...NUMEROUS MODERATE SCATTERED STRONG WITHIN 420 NM NE QUADRANT...600 NM SE QUADRANT...AND 180 NM W SEMICIRCLE. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 10N75W TO 08N90W TO 10N100W THEN RESUMES SW OF NORMA NEAR 10N117W TO LOW PRES NEAR 10N123W TO 06N140W. SCATTERED MODERATE ISOLATED STRONG FROM 06N TO 11N BETWEEN 89W AND 100W. $$ .FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.