000 FZPN03 KNHC 270216 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC FRI OCT 27 2017 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0000 UTC FRI OCT 27. 24 HOUR FORECAST VALID 0000 UTC SAT OCT 28. 48 HOUR FORECAST VALID 0000 UTC SUN OCT 29. .WARNINGS. ...GALE WARNING... .WITHIN 45 NM OF LINE FROM 16N95W TO 14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN AREA BOUNDED BY 16N95W TO 05N90W TO 01N97W TO 10N114W TO 16N95W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN MIXED NE AND SW SWELL. .12 HOUR FORECAST CONDITIONS MERGE. .24 HOUR FORECAST LITTLE CHANGE. .36 HOUR FORECAST WITHIN 60 NM OF LINE FROM 16N95W TO 14N95W... INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS TO 8 FT. .42 HOUR FORECAST WITHIN 15 NM OF LINE FROM 16N95W TO 14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 13N96W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM 16N95W TO 13N95.5W N TO NE WINDS 20 TO 30 KT. SEAS TO 9 FT. .SYNOPSIS AND FORECAST. .LOW PRES 10.5N88.5W 1007 MB. WITHIN 150 NM S SEMICIRCLE OF LOW SW WINDS 20 TO 25 KT. SEAS TO 10 FT. POSSIBLE TROPICAL CYCLONE FORMATION. .12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 10N90W 1006 MB. WITHIN 150 NM NE SEMICIRCLE OF LOW E TO SE WINDS 20 TO 25 KT. SEAS TO 11 FT. WITHIN 75 NM OF LINE FROM 08N88W TO 07N91W TO 07N96W S TO SW WINDS 20 TO 25 KT. SEAS TO 11 FT. REMAINDER AREA BOUNDED BY A LINE FROM 12N113W TO 12N87W TO 08N86W TO 03.4S93W TO 03.4S104W TO 12N113W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT PRIMARILY IN MIXED SWELL. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 10.5N92.5W 1005 MB. WITHIN 180 NM NE SEMICIRCLE OF LOW E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 13 FT. WITHIN 75 NM OF LINE FROM 11N89W TO 05N98W S TO SW WINDS 20 TO 25 KT. SEAS 9 TO 13 FT. REMAINDER AREA BOUNDED BY A LINE FROM 08N112W TO 14N91W TO 12N86W TO 03.4S94W TO 03.4S109W TO 08N112W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT PRIMARILY IN MIXED SWELL. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 14N92W 1004 MB. WITHIN 150 NM OF CENTER WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 180 NM OF LINE FROM 13N90W TO 05N104W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED SWELL. .24 HOUR FORECAST W OF LINE FROM 30N138W TO 28N140W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NW SWELL. .48 HOUR FORECAST W OF LINE FROM 30N124W TO 13N140W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT PRIMARILY IN NW SWELL...HIGHEST SEAS AT 30N140W. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0215 UTC FRI OCT 27... .LOW PRES 10.5N88.5W...SCATTERED MODERATE ISOLATED STRONG WITHIN 270 NM S SEMICIRCLE OF THE LOW. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 10N85W TO 1007 MB LOW PRES 10.5N88.5W TO 08N101W TO 10N119W. ITCZ FROM 10N119W TO 11N131W TO 10N140W. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE WITHIN 210 NM OF LINE FROM 07N83W TO 09N90W TO 08N98W TO 15N106W...WITHIN 120 NM OF LINE FROM 08N105W TO 14N129W TO 06N140W. $$ .FORECASTER NELSON. NATIONAL HURRICANE CENTER.