485 
FZPN03 KNHC 030330
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC WED OCT 3 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED OCT 03.
24 HOUR FORECAST VALID 0000 UTC THU OCT 04.
48 HOUR FORECAST VALID 0000 UTC FRI OCT 05.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE SERGIO NEAR 11.8N 115.8W 965 MB AT 0300 UTC OCT 03 
MOVING WNW OR 300 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 100 KT 
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE...130 
NM SE...60 NM SW AND 90 NM NW QUADRANTS. SEAS 12 FT OR GREATER 
WITHIN 300 NM E AND 180 NM W SEMICIRCLES WITH SEAS TO 38 FT. 
ELSEWHERE WITHIN 270 NM NE...330 NM SE...240 NM SW...AND 210 NM 
NW QUADRANTS WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF 
AREA FROM 05N TO 19N BETWEEN 107W AND 122W WINDS 20 KT OR LESS. 
SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE SERGIO NEAR 13.6N 118.5W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM W SEMICIRCLE...120 NM NE QUADRANT AND 140 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM NE AND 180 NM SW 
SEMICIRCLES WITH SEAS TO 45 FT. ELSEWHERE WITHIN 180 NM NW AND 
360 NM SE SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. 
REMAINDER OF AREA FROM 05N TO 20N BETWEEN 107W AND 125W WINDS 20 
KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE SERGIO NEAR 15.5N 121.1W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM NW AND SE QUADRANTS...140 NM NE QUADRANT AND 90 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM NE AND 240 N SW 
SEMICIRCLES WITH SEAS TO 45 FT. ELSEWHERE WITHIN 240 NM NE...360 
NM SE...180 NM SW...AND 240 NM NW QUADRANTS WINDS 20 TO 33 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA FROM 07N TO 27N BETWEEN 106W 
AND 130W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE SERGIO NEAR 16.4N 123.6W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SERGIO NEAR 16.5N 126.6W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
.120 HOUR FORECAST HURRICANE SERGIO NEAR 16.8N 129.5W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 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.

.WITHIN 30 NM OF LINE FROM 16N95W TO 14N95W...INCLUDING GULF 
OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST N OF 14N BETWEEN 94.5W AND 95.5W...INCLUDING 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS TO 9 FT. 

.COLD FRONT FROM 30N123W TO 22N130W. N OF 29N W OF 132W WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 30N122W TO 
24N126W. TROUGH FROM 30N127W TO 25N131W. W OF TROUGH WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST N OF 18N W OF 130W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN MIXED SWELL.

.48 HOUR FORECAST FROM 04N TO 08N BETWEEN 85W AND 96W SW WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT.

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

CONVECTION VALID AT 0300 UTC WED OCT 3...

HURRICANE SERGIO...NUMEROUS MODERATE TO STRONG WITHIN 120 NM OF 
CENTER. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE WITHIN 180 
NM OF CENTER.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 07N78W TO LOW PRES NEAR 10N87W TO 10N93W TO 
14N100W TO 13N107W...RESUMES FROM 14N121W TO 15N126W TO 09N140W. 
SCATTERED MODERATE ISOLATED STRONG FROM 07N TO 11N BETWEEN 84W 
AND 104W. SCATTERED MODERATE WITHIN 60 NM OF TROUGH BETWEEN 124W 
AND 140W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.