693 
FZPN03 KNHC 020918
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC TUE OCT 02 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 0600 UTC TUE OCT 02.
24 HOUR FORECAST VALID 0600 UTC WED OCT 03.
48 HOUR FORECAST VALID 0600 UTC THU OCT 04.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE SERGIO NEAR 10.7N 113.2W 986 MB AT 0900 UTC OCT 02 
MOVING W OR 265 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 75 KT 
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM E 
SEMICIRCLE...60 NM SW QUADRANT AND 90 NM NW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 180 NM N SEMICIRCLE...210 NM SE QUADRANT AND 
120 NM SW QUADRANT WITH SEAS TO TO 28 FT. ELSEWHERE WITHIN 210 
NM OF CENTER...EXCEPT 240 NM SE QUADARANT WINDS 20 TO 33 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA FROM 04N TO 18N BETWEEN 105W 
AND 116W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE SERGIO NEAR 11.7N 116.4W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM E SEMICIRCLE...80 NM SW QUADRANT AND 110 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM N SEMICIRCLE...240 
NM SE QUADRANT AND 150 NM SW QUADRANT WITH SEAS TO 32 FT. 
ELSEWHERE WITHIN 240 NM OF CENTER...EXCEPT 270 NM SE QUADARANT 
WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA FROM 05N 
TO 18N BETWEEN 106W AND 121W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE SERGIO NEAR 13.8N 119.0W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM E SEMICIRCLE...100 NM SW QUADRANT AND 120 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM N SEMICIRCLE...270 
NM SE QUADRANT AND 180 NM SW QUADRANT WITH SEAS TO 38 FT. 
ELSEWHERE WITHIN 270 NM OF CENTER...EXCEPT 300 NM SE QUADARANT 
WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA FROM 06N 
TO 21N BETWEEN 105W AND 125W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE SERGIO NEAR 15.6N 121.7W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SERGIO NEAR 16.5N 124.6W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
.120 HOUR FORECAST HURRICANE SERGIO NEAR 16.7N 127.5W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.

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.

.TROPICAL DEPRESSION ROSA NEAR 29.3N 114.9W 1003 MB AT 0900 UTC 
OCT 02 MOVING NNE OR 030 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 30 
KT GUSTS 40 KT. OVER FORECAST WATERS N OF 25N E OF 118W WINDS 20 
TO 30 KT. SEAS 8 TO 11 FT. IN THE GULF OF CALIFORNIA N OF 27N 
SOUTHERLY WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST POST-TROPICAL ROSA NEAR 31.8N 114.0W. MAXIMUM 
SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST WATERS WINDS 20 
KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST...DISSIPATED.

.WITHIN 30 NM OF A LINE FROM 16N95W TO 15N95W TO 14N95.5W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 10 FT. 
.06 HOUR FORECAST N OF 14N BETWEEN 94W AND 96W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST N OF 14N BETWEEN 94W AND 96W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST N OF 15N BETWEEN 94W AND 96W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0900 UTC TUE OCT 2...

HURRICANE SERGIO...NUMEROUS MODERATE TO STRONG WITHIN 90 NM OF 
CENTER. NUMEROUS MODERATE TO ISOLATED STRONG ELSEWHERE WITHIN 
150 NM OF CENTER. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM NORTHERN COLOMBIA...ACROSS PARTS 
OF PANAMA AND COSTA RICA TO 09N84W TO 10N90W TO 12N105W. ANOTHER 
SEGMENT OF THE MONSOON TROUGH REACHES FROM 15N120W TO BEYOND 
10N140W. SCATTERED MODERATE TO ISOLATED STRONG IS WITHIN 150 NM 
S OF THE TROUGH BETWEEN 80W AND 85W...AND FROM 07N TO 15N 
BETWEEN 93W AND 104W. SCATTERED MODERATE IS FROM 12N TO 15N 
BETWEEN 121W AND 128W...AND FROM 10N TO 12N BETWEEN 130W AND 
135W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.