000 FZPN03 KNHC 230838 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC MON AUG 23 2021 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 MON AUG 23. 24 HOUR FORECAST VALID 0600 UTC TUE AUG 24. 48 HOUR FORECAST VALID 0600 UTC WED AUG 25. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM MARTY NEAR 20.0N 111.0W 1000 MB AT 0900 UTC AUG 23 MOVING W OR 280 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM W SEMICIRCLE...40 NM NE QUADRANT AND 0 NM SE QUADRANT. ELSEWHERE WITHIN 20N109W TO 19N110W TO 19N112W TO 21N112W TO 22N110W TO 20N109W WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. .24 HOUR FORECAST TROPICAL STORM MARTY NEAR 20.4N 116.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM OF CENTER EXCEPT 30 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM OF CENTER...EXCEPT 0 NM SE QUADRANT WITH SEAS TO 14 FT. ELSEWHERE WITHIN 20N115W TO 19N117W TO 20N118W TO 23N117W TO 22N114W TO 20N115W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .48 HOUR FORECAST TROPICAL DEPRESSION MARTY NEAR 20.1N 120.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 21N119W TO 20N120W TO 20N121W TO 22N122W TO 22N120W TO 21N119W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. .60 HOUR FORECAST POST-TROPICAL REMNANT LOW MARTY NEAR 20.0N 122.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. .72 HOUR FORECAST POST-TROPICAL REMNANT LOW MARTY NEAR 19.8N 124.3W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL REMNANT LOW MARTY NEAR 19.0N 129.2W. 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 14N95W TO 15N96W TO 16N96W TO 16N95W TO 14N95W... INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .WITHIN 12N105W TO 11N107W TO 11N112W TO 13N110W TO 13N105W TO 12N105W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL. WITHIN 10N133W TO 10N134W TO 10N135W TO 11N133W TO 11N132W TO 10N133W SW WINDS 20 TO 25 KT. SEAS 8 FT. .24 HOUR FORECAST WITHIN 10N122W TO 10N124W TO 11N125W TO 12N125W TO 13N123W TO 10N122W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. WITHIN 11N110W TO 10N113W TO 10N116W TO 13N115W TO 12N110W TO 11N110W WINDS 20 KT OR LESS. SEAS 8 FT IN SW TO W SWELL. WITHIN 09N131W TO 09N133W TO 12N134W TO 13N131W TO 12N130W TO 09N131W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .48 HOUR FORECAST WITHIN 10N111W TO 10N125W TO 13N129W TO 12N120W TO 13N111W TO 10N111W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW SWELL. .12 HOUR FORECAST WITHIN 16N102W TO 16N104W TO 17N104W TO 18N103W TO 17N102W TO 16N102W E TO SE WINDS 20 TO 25 KT. SEAS 8 FT. .24 HOUR FORECAST LOW PRES NEAR 17N107.5W 1009 MB. WITHIN 18N102W TO 17N102W TO 18N106W TO 19N106W TO 19N105W TO 18N102W ...INCLUDING NEAR CABO CORRIENTES...E TO SE WINDS 20 TO 25 KT. SEAS 8 FT. .48 HOUR FORECAST LOW PRES NEAR 18N110W 1010 MB. CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0720 UTC MON AUG 23... .TROPICAL STORM MARTY...SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM E SEMICIRCLE AND WITHIN 180 NM W SEMICIRCLE. SIMILAR CONVECTION ELSEWHERE FROM 19N TO 25N BETWEEN 105W AND 110W. .TROPICAL WAVE ALONG 80W N OF 01N...SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 09N BETWEEN 80W AND 83W. .TROPICAL WAVE ALONG 89W N OF 02N...SCATTERED MODERATE ISOLATED STRONG WITHIN 90 NM OF COAST OF CENTRAL AMERICA AND MEXICO BETWEEN 86W AND 96W...AND ALSO FROM 08N TO 10N BETWEEN 89W AND 91W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 11N86W TO 10N90W TO 15N102W THEN RESUMES FROM 14N112W TO 13N125W TO 10N140W. SCATTERED MODERATE FROM 04N TO 09N BETWEEN 94W AND 99W...AND ALSO FROM 10N TO 14N BETWEEN 100W AND 128W. SCATTERED MODERATE ISOLATED STRONG FROM 08N TO 13N BETWEEN 130W AND 140W. SIMILAR CONVECTION WITHIN 240 NM SW OF COAST OF MEXICO BETWEEN 96W AND 106W. $$ .FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.