514 
FZPN03 KNHC 061540
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC THU SEP 06 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC THU SEP 06.
24 HOUR FORECAST VALID 1200 UTC FRI SEP 07.
48 HOUR FORECAST VALID 1200 UTC SAT SEP 08.

.WARNINGS.

...HURRICANE WARNING...

.HURRICANE OLIVIA NEAR 18.4N 127.2W 959 MB AT 1500 UTC SEP 06 
MOVING WNW OR 285 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 105 KT 
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM W 
SEMICIRCLE...100 NM NE QUADRANT AND 90 NM SE QUADRANT. SEAS 12 
FT OR GREATER WITHIN 150 NM S SEMICIRCLE...210 NM NE QUADRANT 
AND 180 NM NW QUADRANT WITH SEAS TO 40 FT. ELSEWHERE WITHIN 210 
NM OF CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF 
AREA WITHIN 420 NM N SEMICIRCLE AND 480 NM S SEMICIRCLE WINDS 20 
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE OLIVIA NEAR 19.8N 131.8W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER WITH SEAS 
TO 38 FT. ELSEWHERE WITHIN 210 NM OF CENTER WINDS 20 TO 33 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 420 NM E SEMICIRCLE 
AND 390 NM W SEMICIRCLE WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN 
MIXED SWELL. 
.48 HOUR FORECAST HURRICANE OLIVIA NEAR 21.2N 137.0W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NW AND SE QUADRANTS...90 NM NE QUADRANT AND 70 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM N SEMICIRCLE 
AND 150 NM S SEMICIRCLE WITH SEAS TO 32 FT. ELSEWHERE WITHIN 240 
NM N SEMICIRCLE AND 180 NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 
10 TO 12 FT. REMAINDER OF AREA WITHIN 420 NM N SEMICIRCLE AND 
360 NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 11 FT IN MIXED 
SWELL. 
.72 HOUR FORECAST HURRICANE OLIVIA NEAR 21.5N 142.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE OLIVIA NEAR 21.5N 146.5W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST TROPICAL STORM OLIVIA NEAR 21.5N 150.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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

.24 HOUR FORECAST LOW PRES NEAR 13N112W 1008 MB. FROM 07N TO 10N 
BETWEEN 107W AND 112W SW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES NEAR 14N115W 1006 MB. FROM 08N TO 14N 
BETWEEN 107W AND 115W SW WINDS 20 TO 25 KT. SEAS TO 9 FT.

.S OF LINE FROM 03.4S104W TO 00S110W TO 00S120W WINDS 20 KT OR 
LESS. SEAS 8 FT IN SW SWELL.
.24 HOUR FORECAST S OF 02S BETWEEN 85W AND 120W WINDS 20 KT OR 
LESS. SEAS 8 FT IN S TO SW SWELL. 
.48 HOUR FORECAST FROM 03N TO 06N BETWEEN 94W AND 100W AND FROM 
00N TO 05N BETWEEN 81W AND 86W WINDS 20 KT OR LESS. SEAS TO 8 FT 
IN S SWELL.

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

CONVECTION VALID AT 1500 UTC THU SEP 6...

.HURRICANE OLIVIA...NUMEROUS MODERATE TO STRONG WITHIN 120 NM E 
SEMICIRCLE AND 90 NM W SEMICIRCLE. 

.TROPICAL WAVE FROM 04N91W TO 21N92W...NUMEROUS MODERATE TO 
STRONG FROM 12N TO 16N BETWEEN 93W AND 97W. 

.LOW PRES NEAR 14N108W...SCATTERED MODERATE ISOLATED STRONG FROM 
12N TO 20N BETWEEN 103W AND 113W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 08N85W TO LOW PRES NEAR 14N108W 
1008 MB TO 10N115W...RESUMES FROM 14N126W TO BEYOND 13N140W. 
SCATTERED MODERATE FROM 03N TO 08N BETWEEN 78W AND 90W...AND 
FROM 08N TO 12N BETWEEN 126W AND 140W. 
  
$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.