000
FZPN03 KNHC 112121
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI AUG 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FRI AUG 11.
24 HOUR FORECAST VALID 1800 UTC SAT AUG 12.
48 HOUR FORECAST VALID 1800 UTC SUN AUG 13.

.WARNINGS.

...GALE WARNING...
.LOW PRES NEAR 18.5N108W 1006 MB. BETWEEN 120 NM AND 240 NM NE
QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE S OF 22N
WITHIN 90 NM OF MEXICO W OF 103W E TO SE WINDS 20 TO 25 KT. SEAS
8 TO 10 FT.
.12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
19N110W 1006 MB. WITHIN 90 NM NE SEMICIRCLE WINDS 20 TO 30 KT. 
SEAS 8 TO 11 FT. ELSEWHERE WITHIN 300 NM E QUADRANT WINDS 20 TO 
30 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
19.5N112.5W 1005 MB. WITHIN 90 NM OF CENTER WINDS 20 TO 30 KT. 
SEAS 8 TO 11 FT. ELSEWHERE FROM 20.5N TO 23N BETWEEN 106W AND 
109W SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
20.5N115.5W 1006 MB. WITHIN 75 NM OF CENTER WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.

.SYNOPSIS AND FORECAST.

.06 HOUR FORECAST WITHIN AREA BOUNDED BY 03.4S83W TO 03.4S120W
TO 03S120W TO 02S103W TO 01S97W TO 03S85W TO 03.4S83W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN MIXED SE AND SW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 03S81W TO 03.4S120W TO 
04N107W TO 06N97W TO 05N81W TO 03S81W...EXCEPT LEE OF GALAPAGOS
ISLANDS...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SE AND SW
SWELL...HIGHEST ALONG 03.4S E OF 100W.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 03S81W TO 01S89W TO 
03.4S120W TO 11N105W TO 12N94W TO 07N79W TO 03S81W...EXCEPT LEE
OF GALAPAGOS ISLANDS...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN 
MIXED SW AND NW SWELL.

.42 HOUR FORECAST WITHIN AREA BOUNDED BY 12.5N117W TO 12.5N111W
TO 10N111W TO 10N117W TO 12.5N117W WINDS 20 KT OR LESS. SEAS 8 
FT IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 13N116W TO 13N112W TO
10N112W TO 10N116W TO 13N116W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN MIXED SE AND SW SWELL.

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

CONVECTION VALID AT 2100 UTC FRI AUG 11...

.LOW PRES NEAR 18.5N108W...SCATTERED MODERATE ISOLATED STRONG
WITHIN 360 NM SE QUADRANT AND WITHIN 240 NM W SEMICIRCLE.

.TROPICAL WAVE N OF 06N ALONG 97W...WIDELY SCATTERED MODERATE
WITHIN AREA BOUNDED BY 15N97W TO 05N92W TO 05N102W TO 12N102W TO
15N97W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM LOW PRES NEAR 10.5N76W TO 08N80W
TO LOW PRES NEAR 11N94W THEN RESUMES FROM 15N107W TO 11N120W TO 
10N135W. ITCZ AXIS EXTENDS FROM 10N135W TO 10N140W. SCATTERED 
MODERATE ISOLATED STRONG N OF 03N E OF 83W...WITHIN 75 NM EITHER 
SIDE OF AXIS BETWEEN 85W AND 93W...AND WITHIN 150 NM EITHER SIDE 
OF AXIS BETWEEN 107W AND 130W. SCATTERED MODERATE WITHIN 120 NM S
OF AXIS BETWEEN 130W AND 138W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.