000 FZPN03 KNHC 101504 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC WED OCT 10 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. 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 10. 24 HOUR FORECAST VALID 1200 UTC THU OCT 11. 48 HOUR FORECAST VALID 1200 UTC FRI OCT 12. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM SERGIO NEAR 18.4N 123.5W 992 MB AT 1500 UTC OCT 10 MOVING NE OR 055 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM OF CENTER EXCEPT 120 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM N SEMICIRCLE AND 300 NM S SEMICIRCLE WITH SEAS TO 29 FT. ELSEWHERE WITHIN 390 NM OF CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA N OF 06N W OF 112W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM SERGIO NEAR 22.0N 119.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM W SEMICIRCLE...120 NM NE AND 140 NM SE QUADRANTS. WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 270 NM N AND 360 NM S SEMICIRCLES WITH SEAS TO 23 FT. NUMEROUS TSTMS IN BANDS WITHIN 180 NM OF CENTER. ELSEWHERE WITHIN AREA BOUNDED BY 30N140W TO 30N116W TO 14N95W TO 03.4S110W TO 07N140W TO 30N140W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED SWELL. .48 HOUR FORECAST TROPICAL STORM SERGIO NEAR 27.0N 113.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE AND SW QUADRANTS...70 NM NW AND 140 NM SE QUADRANTS. WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 150 NM OF LINE FROM 21N110W TO 28N117W WITH SEAS TO 20 FT. GULF OF CALIFORNIA FROM 25N TO 29N SE TO S WINDS 25 TO 35 KT. SEAS TO 8 FT. NUMEROUS TSTMS IN BANDS WITHIN 180 NM OF CENTER. ELSEWHERE WITHIN BOUNDED BY 30N122W TO 30N116W TO 23N110W TO 23N107W TO 14N94W TO 03.4S108W TO 09N137W TO 30N122W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED SWELL. .72 HOUR FORECAST POST TROPICAL SERGIO NEAR 31.5N 104.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 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 120 NM OF LINE FROM 14.5N93W TO 04N11W WINDS 20 KT OR LESS. SEAS TO 9 FT PRIMARILY IN SW SWELL. S OF 01N BETWEEN 110W AND 124W WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL. .24 HOUR FORECAST CONDITIONS MERGE. .48 HOUR FORECAST WITHIN 90 NM OF 06.5N81W SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .TROPICAL STORM SERGIO...TROPICAL STORM SERGIO CENTERED NEAR 17.5N 124.9W AT 10/0900 UTC OR 890 NM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MOVING ENE AT 10 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 991 MB. MAXIMUM SUSTAINED WIND SPEED IS 60 KT WITH GUSTS TO 75 KT. NUMEROUS MODERATE AND ISOLATED STRONG CONVECTION IS NOTED WITHIN 180 NM IN THE NORTH SEMICIRCLE, AND SCATTERED MODERATE CONVECTION WITHIN 120 NM IN THE SOUTH SEMICIRCLE. LARGE SWELLS ASSOCIATED WITH SERGIO WILL CONTINUE TO MIX WITH LONG PERIOD NW SWELL, AND INCREASINGLY A COMPONENT OF SW SWELL, CREATING CONFUSED SEAS ACROSS A LARGE PORTION OF THE DISCUSSION WATERS. THE SWELL WILL CONTINUE TO IMPACT THE COAST OF MEXICO THE NEXT SEVERAL DAYS AS SERGIO MAKES ITS WAY TO CENTRAL BAJA CALIFORNIA SUR BY FRI. SEE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCPEP1/WTPZ31 KNHC FOR MORE DETAILS. .TROPICAL WAVE N OF 05N ALONG 80W...SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM OF WAVE AXIS. CONVECTION VALID AT 1500 UTC WED OCT 10... .TROPICAL STORM SERGIO...NUMEROUS STRONG IN BANDS WITHI 180 NM NE AND 120 NM SW SEMICIRCLES OF CENTER. .TROPICAL WAVE N OF 05N ALONG 80W...SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM OF WAVE AXIS. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH AXIS FROM 16N97W TO 12N113W...AND FROM 14N128W TO 10N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM OF LINE FROM 12N92W TO 15N96W TO 11N103W AND WITHIN 30 NM OF LINE FROM 10N124W TO 09N140W. $$ .FORECASTER NELSON. NATIONAL HURRICANE CENTER.