000
FZPN03 KNHC 190925
HSFEP2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC THU APR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

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 19.
24 HOUR FORECAST VALID 0600 UTC FRI APR 20.
48 HOUR FORECAST VALID 0600 UTC SAT APR 21.

.WARNINGS.

...GALE WARNING...
.18 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 
95.5W N WINDS 25 TO 35 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W 
INCLUDING GULF OF TEHUANTEPEC...N WINDS 25 TO 40 KT. SEAS 8 TO 
13 FT.
.36 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14.5N95.5W 
TO 12N97W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
30 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 75 NM OF LINE FROM 
16N95W TO 11N97W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED 
NE AND SW SWELL.
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N96W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 
8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.FROM 12N TO 21N W OF 130W WINDS 20 KT OR LESS. SEAS TO 8 FT IN 
NW SWELL. 
.24 HOUR FORECAST TROUGH FROM 05N130W TO 10N125W. FROM 07N TO 
10N BETWEEN 133W AND 139W...AND FROM 12N TO 15N BETWEEN 121W AND 
128W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE W OF 
LINE FROM 22N140W TO 17N115W TO 12N115W TO 06N132W WINDS 20 KT 
OR LESS. SEAS 8 TO 9 FT IN NW SWELL. 
.48 HOUR FORECAST FROM 10N TO 14N BETWEEN 123W AND 128W NE WINDS 
20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE W OF LINE FROM 24N140W 
TO 12N116W TO 06N134W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW 
SWELL.

.S OF LINE FROM 03.4S90W TO 10N97W TO 11N115W TO 00N120W WINDS 
20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST S OF 00S BETWEEN 102W AND 115W WINDS 20 KT OR 
LESS. SEAS 8 FT IN MIXED SW AND NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10N89W...INCLUDING GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N86W TO 
10N89W...INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS 
TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.24 HOUR FORECAST N OF 25N E OF 116W...INCLUDING SEBASTIAN 
VIZCAINO BAY...NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0900 UTC THU APR 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 06N77W TO 07N96W. ITCZ FROM 07N96W TO 
07N120W TO 05N130W TO 06N140W. SCATTERED MODERATE ISOLATED 
STRONG FROM 07N TO 12N BETWEEN 109W AND 115W. SCATTERED MODERATE 
TO STRONG WITHIN 75 NM OF ITCZ AXIS BETWEEN 122W AND 132W. 

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.