000
FZPN03 KNHC 200901
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU APR 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC THU APR 20.
24 HOUR FORECAST VALID 0600 UTC FRI APR 21.
48 HOUR FORECAST VALID 0600 UTC SAT APR 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 07N TO 11N BETWEEN 120W AND 129W WINDS 20 KT OR LESS. SEAS 
8 FT IN MIXED SW AND NW SWELL.
.18 HOUR FORECAST CONDITIONS MERGE.

.N OF 23.5N E OF 119W...INCLUDING SEBASTIAN VIZCAINO BAY...NW TO 
N WINDS 20 TO 25 KT. SEAS TO 9 FT. FROM 20N TO 23.5N BETWEEN 
116W AND 120W WINDS 20 KT OR LESS. SEAS 8 FT IN NW TO N SWELL.
.18 HOUR FORECAST CONDITIONS MERGE.

.W OF LINE FROM 30N120W TO 17N130W TO 13N140W WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN NW SWELL...HIGHEST NEAR 30N134W.
.18 HOUR FORECAST E OF LINE FROM 30N121W TO 26N116W...INCLUDING 
SEBASTIAN VIZCAINO BAY...NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 11 
FT IN NW TO N SWELL. ELSEWHERE N OF LINE FROM 23N113W TO 07N123W 
TO 08N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SW AND 
NW SWELL.
.24 HOUR FORECAST N OF 27.5N E OF 122W...INCLUDING SEBASTIAN 
VIZCAINO BAY...NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN NW 
TO N SWELL. ELSEWHERE N OF LINE FROM 22N112W TO 07N121W TO 
07N140W AND E OF LINE FROM 07N140W TO 21N140W TO 30N133W WINDS 
20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SW AND NW SWELL.
.30 HOUR FORECAST N OF LINE FROM 22N112W TO 06N122W TO 07N140W 
AND E OF LINE FROM 07N140W TO 18N140W TO 30N127W...INCLUDING 
SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN 
MIXED SW AND NW SWELL.
.48 HOUR FORECAST N OF LINE FROM 18N111W TO 07N120W TO 04N132W 
TO 05N140W AND E OF LINE FROM 05N140W TO 16N140W TO 24N126W TO 
30N124W...INCLUDING SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED SW AND NW SWELL.

.GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 95.5W N WINDS 20 
TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 02S BETWEEN 108W AND 112W WINDS 20 KT OR LESS. SEAS 8 FT 
IN SW AND NW SWELL.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST COLD FRONT APPROACH 30N140W. N OF 29N W OF 
138W S WINDS 20 TO 25 KT. SEAS TO 9 FT.
.36 HOUR FORECAST COLD FRONT FROM 30N139W TO 29N140W. N OF LINE 
FROM 30N137W TO 28N140W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN 
NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 30N135W TO 27N140W. N OF LINE 
FROM 30N135W TO 25N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN 
NW SWELL.

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

CONVECTION VALID AT 0900 UTC THU APR 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 09N84W TO 06N90W TO 04N97W. ITCZ FROM 06N114W TO 
03N131W TO BEYOND 03N140W. SCATTERED MODERATE ISOLATED STRONG 
AREA BOUNDED BY 08N79W TO 02N83W TO 04N94W TO 09N84W TO 08N79W.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.