000 FZPN03 KNHC 281022 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC FRI AUG 28 2020 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC FRI AUG 28. 24 HOUR FORECAST VALID 0600 UTC SAT AUG 29. 48 HOUR FORECAST VALID 0600 UTC SUN AUG 30. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM HERNAN NEAR 22.7N 107.3W 1004 MB AT 0900 UTC AUG 28 MOVING NW OR 320 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W SEMICIRCLE...30 NM NE QUADRANT AND 40 NM SE QUADRANT. SEAS 12 FT WITHIN 60 NM N SEMICIRCLE...120 NM SE QUADRANT AND 90 NM SW QUADRANT. ELSEWHERE WITHIN 21N107W TO 22N107W TO 22N108W TO 23N108W TO 22N106W TO 21N107W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 16N96W TO 14N103W TO 18N110W TO 21N106W TO 18N103W TO 16N96W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST POST-TROPICAL HERNAN NEAR 24.2N 110.6W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO 9 FT WITHIN 30 NM SW SEMICIRCLE. ELSEWHERE WITHIN 22N110W TO 23N111W TO 23N109W TO 22N110W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL. .36 HOUR FORECAST...DISSIPATED. ...TROPICAL STORM WARNING... .TROPICAL STORM ISELLE NEAR 17.9N 115.0W 997 MB AT 0900 UTC AUG 28 MOVING NE OR 045 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 90 NM E SEMICIRCLE...60 NM SW QUADRANT AND 30 NM NW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE WITHIN 14N113W TO 14N115W TO 18N116W TO 19N115W TO 17N110W TO 14N113W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 13N103W TO 11N113W TO 12N120W TO 20N116W TO 13N103W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM ISELLE NEAR 20.1N 114.1W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM N SEMICIRCLE AND 50 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN AREA OF TROPICAL STORM WINDS WITH SEAS TO 17 FT. ELSEWHERE WITHIN 19N113W TO 19N114W TO 19N115W TO 21N115W TO 21N114W TO 19N113W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 15N108W TO 14N117W TO 20N116W TO 22N113W TO 21N107W TO 15N108W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST TROPICAL DEPRESSION ISELLE NEAR 23.0N 114.8W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 12 FT WITHIN 30 NM NE SEMICIRCLE. ELSEWHERE WITHIN 21N113W TO 20N113W TO 22N115W TO 24N115W TO 23N113W TO 21N113W WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .60 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 23.9N 115.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. .72 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 24.2N 116.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 24.5N 117.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. .120 HOUR FORECAST...DISSIPATED. 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. .WITHIN 03.4S81W TO 03.4S89W TO 02S88W TO 01N86W TO 00N82W TO 03.4S81W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0930 UTC FRI AUG 28... .TROPICAL STORM HERNAN...NUMEROUS MODERATE TO STRONG WITHIN 300 NM SW SEMICIRCLE AND 90 NM NE SEMICIRCLE. SCATTERED MODERATE FROM 16N TO 25N BETWEEN 105W AND 110W. .TROPICAL STORM ISELLE...NUMEROUS MODERATE TO STRONG WITHIN 120 NM W SEMICIRCLE. .TROPICAL WAVE AXIS NEAR 93W...SCATTERED MODERATE FROM 12N TO 18N BETWEEN 91W AND 96W. .TROPICAL WAVE AXIS NEAR 105W...SCATTERED MODERATE FROM 10N TO 14N BETWEEN 100W AND 108W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH EXTENDS FROM 15N18W TO 10N132W TO BEYOND 12N140W. SCATTERED MODERATE WITHIN 90 NM ON EITHER SIDE OF BOUNDARY. $$ .FORECASTER ERA. NATIONAL HURRICANE CENTER.