High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 191459
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC THU OCT 19.
24 HOUR FORECAST VALID 1200 UTC FRI OCT 20.
48 HOUR FORECAST VALID 1200 UTC SAT OCT 21.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W TO
15N95W...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
LINE FROM 16N95W TO 15N95W TO 13N96W N TO NE WINDS 20 TO 30 KT.
SEAS 8 TO 10 FT. REMAINDER OF AREA FROM 11.5N TO 13.5N BETWEEN
94W AND 97.5W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE
AND SW SWELL.
.06 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF LINE FROM 16N95W
TO 15N95W TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO
NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. WITHIN 45 NM EITHER SIDE
OF LINE FROM 14N95.5W TO 11.5N97.5W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN MIXED NE AND SW SWELL.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W
TO 14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.S OF 04N W OF 135W WINDS 20 KT OR LESS. SEAS 8 FT IN SE TO S
SWELL. S OF 02S AND W OF 115W WINDS 20 KT OR LESS. SEAS 8 FT IN
S SWELL.
.24 HOUR FORECAST S OF 01S W OF 111W...AND S OF 00N BETWEEN 82W
AND 102W WINDS 20 KT OR LESS. SEAS 8 FT IN S SWELL.
.48 HOUR FORECAST FROM 03N TO 06N BETWEEN 80W AND 85W WINDS 20
KT OR LESS. SEAS 8 FT IN SW SWELL.

.12 HOUR FORECAST COLD FRONT FROM 30N140W TO 25N140W. NW OF LINE
FROM 30N137W TO 29N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN
NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 30N124W TO 23N140W.
N OF LINE FROM 30N129W TO 26N140W WINDS 20 KT OR LESS. SEAS 12
TO 16 FT IN NW SWELL. ELSEWHERE NW OF LINE FROM 30N126W TO
22N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL. N OF
29N E OF 117W NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FRONT DISSIPATED. WITHIN 30 NM OF COAST OF
BAJA BETWEEN 25N AND 26.5N NW WINDS 20 TO 25 KT. SEAS TO 8 FT. N
OF 28N E OF 122W NW TO N WINDS 20 TO 25 KT. SEAS 12 TO 16 FT.
ELSEWHERE N OF LINE FROM 27N116W TO 21N130W TO 22N135W WINDS 20
KT OR LESS. SEAS 12 TO 15 FT IN NW SWELL. REMAINDER OF THE AREA
N OF LINE FROM 23N113W TO 11N135W TO 11N140W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN NW SWELL.

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

CONVECTION VALID AT 1430 UTC THU OCT 19...

.TROPICAL WAVE N OF 03N ALONG 86W...SCATTERED MODERATE ISOLATED
STRONG FROM 05N TO 10N BETWEEN 82W AND 88W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 08N103W TO 09N110W TO 10N120W.
ITCZ CONTINUES FROM 10N120W TO 11N127W TO BEYOND 09N140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM EITHER SIDE OF
LINE FROM 10.5N123W TO 12.5N129W TO 12.5N133W. SCATTERED
MODERATE FROM 06N TO 10N BETWEEN 94W AND 107W AND FROM 07N TO
10N BETWEEN 122W AND 124W.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.



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