000
FZPN03 KNHC 310238
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU AUG 31 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC THU AUG 31.
24 HOUR FORECAST VALID 0000 UTC FRI SEP 01.
48 HOUR FORECAST VALID 0000 UTC SAT SEP 02.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM LIDIA NEAR 20.7N 109.2W 1001 MB AT 0300 UTC AUG 
31 MOVING NNW OR 345 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E 
SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 0 
NM W SEMICIRCLE...100 NM NE QUADRANT AND 120 NM SE QUADRANT WITH 
SEAS TO 15 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 300 NM E 
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 
AREA BOUNDED BY 11N120W TO 18N103W TO 11N105W TO 11N120W SW 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. 
.24 HOUR FORECAST TROPICAL STORM LIDIA NEAR 22.8N 110.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 150 NM E SEMICIRCLE...40 NM SW QUADRANT AND 70 NM 
NW QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN 
180 NM E SEMICIRCLE AND 120 NM W SEMICIRCLE WITH SEAS TO 21 FT. 
ELSEWHERE OVER FORECAST WATERS WITHIN 210 NM E SEMICIRCLE AND 
150 NM W SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
ELSEWHERE WITHIN AREA BOUNDED BY 19.5N110W TO 18.5N105W TO 
13N107W TO 13N114W TO 19.5N110W...AND WITHIN 60 NM OF LINE FROM 
13N110W TO 12N113W TO 11N124W WINDS 20 KT OR LESS. SEAS TO 9 FT 
IN SW SWELL.
.48 HOUR FORECAST TROPICAL STORM LIDIA INLAND NEAR 25.5N 111.7W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 100 NM E SEMICIRCLE...30 NM SW QUADRANT AND 50 NM 
NW QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN 
150 NM N SEMICIRCLE AND 180 NM S SEMICIRCLE WITH SEAS TO 19 FT.
ELSEWHERE OVER FORECAST WATERS FROM 19N TO 26N E OF 115W WINDS 
20 TO 33 KT. SEAS 8 TO 12 FT. 
.72 HOUR FORECAST TROPICAL DEPRESSION LIDIA INLAND NEAR 28.0N 
114.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW LIDIA NEAR 29.0N 
117.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW LIDIA NEAR 29.5N 
119.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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.

.06 HOUR FORECAST N OF 29N BETWEEN 124W AND 127W WINDS 20 KT OR 
LESS. SEAS 8 FT IN N SWELL.
.18 HOUR FORECAST N OF 30N BETWEEN 124W AND 126W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN N SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.12 HOUR FORECAST FROM 10N TO 13N BETWEEN 120W AND 125W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN MIXED SE AND SW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST S OF 03N BETWEEN 120W AND 127W WINDS 20 KT OR 
LESS. SEAS TO 8 FT PRIMARILY IN SW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 04N108W TO 03.4S104W TO 
03.4S120W TO 00N120W TO 00N132W TO 08N124W TO 04N108W WINDS 20 
KT OR LESS. SEAS 8 FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 16N115W TO 07N112W TO 
05N112W TO 03.4S109W TO 00N120W TO 00N134W TO 12N134W TO 13N124W 
TO 16N115W WINDS 20 KT OR LESS. SEAS 8 FT PRIMARILY IN SW SWELL.

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

CONVECTION VALID AT 0215 UTC THU AUG 31...

.TROPICAL STORM LIDIA...NUMEROUS STRONG WITHIN 90 NM SE QUADRANT.
SCATTERED MODERATE TO STRONG FROM 16N TO 21N BETWEEN 105W AND 
108W. SCATTERED MODERATE ISOLATED STRONG WITHIN 45 NM EITHER 
SIDE OF LINE FROM 14N115W TO 15N109W...AND ALSO WITHIN 30 NM 
EITHER SIDE OF LINE FROM 13N105W TO 16N103W. 

.LOW PRES NEAR 12N125W 1010 MB...SCATTERED MODERATE WITHIN 30 NM 
OF LOW.

.LOW PRES NEAR 12N134W 1010 MB...SCATTERED MODERATE WITHIN 30 OF 
LOW.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM FROM 10N86W TO 11N96W TO 
18N106W. IT RESUMES AT 17N112W TO 12N122W TO LOW PRES NEAR 
11N132W 1010 MB TO 10N140W. SCATTERED MODERATE ISOLATED STRONG 
WITHIN 30 NM OF AXIS E OF 87W. SCATTERED MODERATE WITHIN 120 NM 
S OF AXIS BETWEEN 100W AND 104W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.