070 
FZPN03 KNHC 040900
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU OCT 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU OCT 04.
24 HOUR FORECAST VALID 0600 UTC FRI OCT 05.
48 HOUR FORECAST VALID 0600 UTC SAT OCT 06.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE SERGIO NEAR 14.4N 118.8W 943 MB AT 0900 UTC OCT 04 
MOVING NW OR 320 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 120 KT 
GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM S 
SEMICIRCLE...120 NM NE QUADRANT AND 100 NM NW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 360 NM NE...330 NM SE...270 NM SW AND 300 
NM NW QUADRANTS WITH SEAS TO 44 FT. ELSEWHERE WITHIN 270 NM N 
AND 360 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 18 FT. 
REMAINDER OF AREA FROM 06N TO 23N BETWEEN 106W AND 127W WINDS 20 
KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE SERGIO NEAR 15.8N 121.0W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM E SEMICIRCLE...110 NM SW QUADRANT AND 130 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM NE AND 360 NM SW 
SEMICIRCLES WITH SEAS TO 45 FT. ELSEWHERE WITHIN 360 NM N AND 
300 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 10 TO 20 FT. 
REMAINDER OF AREA N OF 08N BETWEEN 105W AND 136W WINDS 20 KT OR 
LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE SERGIO NEAR 15.8N 123.5W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM N SEMICIRCLE...120 NM SE QUADRANT AND 110 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 500 NM N AND 420 N S 
SEMICIRCLES WITH SEAS TO 42 FT. ELSEWHERE WITHIN 360 NM OF 
CENTER WINDS 20 TO 33 KT. SEAS 12 TO 20 FT. REMAINDER OF AREA N 
OF 06N W OF 110W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED 
SWELL.
.72 HOUR FORECAST HURRICANE SERGIO NEAR 15.5N 126.2W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SERGIO NEAR 16.0N 128.5W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.120 HOUR FORECAST HURRICANE SERGIO NEAR 17.5N 128.5W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 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.

.N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING GULF OF 
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST N OF 14N BETWEEN 94.5W AND 95.5W...INCLUDING 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING 
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 9 FT. 

.TROUGH FROM 30N126W TO 27N131W. W OF TROUGH WINDS 20 KT OR 
LESS. SEAS TO 10 FT IN NW SWELL.
.24 HOUR FORECAST TROUGH DISSIPATED. CONDITIONS MERGED WITH 
SWELL FROM HURRICANE SERGIO.

.FROM 05N TO 08.5N BETWEEN 83W AND 94W WINDS 20 KT OR LESS. SEAS 
TO 8 FT IN SW SWELL.
.24 HOUR FORECAST FROM 06N TO 09N BETWEEN 85W AND 100W SW WINDS 
20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 06N TO 11N BETWEEN 85W AND 104W S TO SW 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

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

CONVECTION VALID AT 0900 UTC THU OCT 4...

HURRICANE SERGIO...NUMEROUS MODERATE TO STRONG WITHIN 120 NM OF 
CENTER. BANDS OF SCATTERED MODERATE TO STRONG CONVECTION WITHIN 
150 NM N AND 270 NM S OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 12N89W TO 12N103W TO 14N114W...RESUMES W OF 
SERGIO FROM 12N125W TO 11N134W TO 10N140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 30 NM N AND 90 NM S OF TROUGH W OF 126W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.