000
FZPN03 KNHC 180928
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC WED OCT 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED OCT 18.
24 HOUR FORECAST VALID 0600 UTC THU OCT 19.
48 HOUR FORECAST VALID 0600 UTC FRI OCT 20.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W TO 15N95W TO 
14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 
TO 40 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE 
OF A LINE FROM 16N95W TO 15N95W TO 12N97W N TO NE WINDS 20 TO 30 
KT. SEAS 8 TO 13 FT. REMAINDER OF AREA FROM 08N TO 13N BETWEEN 
93.5W AND 101W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE 
AND SW SWELL.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 15N95W TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 30 TO 35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 60 NM 
EITHER SIDE OF A LINE FROM 16N95W TO 15N95W TO 13N96.5W N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA FROM 09N 
TO 13N BETWEEN BETWEEN 95W AND 99W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN MIXED NE AND SW SWELL.
.36 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 45 NM EITHER SIDE 
OF A LINE FROM 16N95W TO 14.5N95W TO 12.5N96.5W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN MIXED NE AND SW SWELL. REMAINDER OF THE 
AREA FROM 11N TO 13N BETWEEN 95W AND 98W WINDS 20 KT OR LESS. 
SEAS 8 FT IN MIXED NE AND SW SWELL.
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 
20 TO 30 KT. SEAS 8 TO 10 FT.

.SYNOPSIS AND FORECAST.

.TROUGH ALONG 140W FROM 13N TO 21N. FROM 15N TO 21N W OF 136W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.06 HOUR FORECAST TROUGH W OF AREA. OVER FORECAST WATERS WINDS 
20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 10N TO 13.5N BETWEEN 115W AND 124W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT PRIMARILY IN SW SWELL. S OF 04N W OF 130W WINDS 
20 KT OR LESS. SEAS 8 FT IN MIXED NE AND SE SWELL.
.24 HOUR FORECAST S OF 07N W OF 130W WINDS 20 KT OR LESS. SEAS 
8 FT IN MIXED NE AND SE SWELL.
.48 HOUR FORECAST S OF 04N W OF 130W WINDS 20 KT OR LESS. SEAS 8 
FT IN MIXED SE AND S SWELL.

.42 HOUR FORECAST NW OF A LINE FROM 30N136W TO 28N140W WINDS 20 
KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.
.48 HOUR FORECAST NW OF A LINE FROM 30N135W TO 28N140W WINDS 20 
KT OR LESS. SEAS 12 TO 16 FT IN NW SWELL. ELSEWHERE NW OF A LINE 
FROM 30N130W TO 25N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN 
NW SWELL.

.48 HOUR FORECAST S 0F 01.5S BETWEEN 90W AND 105W WINDS 20 KT OR 
LESS. SEAS 8 FT IN S SWELL. S OF 02S BETWEEN 115W AND 120W WINDS 
20 KT OR LESS. SEAS 8 FT IN S SWELL.

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

CONVECTION VALID AT 0900 UTC WED OCT 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS ACROSS PARTS OF PANAMA AND COSTA 
RICA NEAR 10N86W TO 08N100W TO 09N110W. THE INTERTROPICAL 
CONVERGENCE ZONE AXIS CONTINUES FROM 09N110W TO 10N120W TO 
07N135W TO BEYOND 09N140W. SCATTERED MODERATE TO STRONG IS NOTED 
ALONG THE COAST OF COLOMBIA N OF 03N...AND IN THE GULF OF PANAMA 
N OF 07N. SCATTERED MODERATE ISOLATED STRONG IS FROM 08N TO 11N 
BETWEEN 94W AND 100W...AND FROM 08N TO 11N BETWEEN 110W AND 130W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.