High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 202141
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED SEP 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED SEP 20.
24 HOUR FORECAST VALID 1800 UTC THU SEP 21.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.POST-TROPICAL REMNANT LOW NORMA NEAR 22N117W 1008 MB MOVING W 5
KT. WITHIN 90 NM NW QUADRANT N TO NE WINDS 20 TO 25 KT. SEAS 8
FT.
.24 HOUR FORECAST LOW PRES NEAR 23N117W. WITHIN 90 NM W
SEMICIRCLE NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 9 FT WITH NW
SWELL.
.48 HOUR FORECAST LOW TO DISSIPATE. FROM 18N TO 23N BETWEEN 115W
AND 118W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MERGING SE AND NW
SWELL.

.POST-TROPICAL REMNANT LOW OTIS NEAR 16.5N131W 1009 MB MOVING SW
10 KT. WITHIN 150 NM NW SEMICIRCLE N TO NE WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT. ELSEWHERE FROM 15N TO 21N BETWEEN 131W AND 138W
WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW TO DISSIPATE. FROM 15N TO 20N BETWEEN 132W
AND 136W WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.N OF LINE FROM 30N119W TO 26.5N133W TO 27N140W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN NW SWELL.
.24 HOUR FORECAST N OF 21N BETWEEN 117W AND 130W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN NW SWELL.
.48 HOUR FORECAST N OF 28N BETWEEN 117W AND 123W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN NW SWELL.

.FROM 02N TO 12N BETWEEN 100W AND 115W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN SE SWELL.
.24 HOUR FORECAST WITHIN 150 NM SE OF LINE FROM 14.5N100W TO
11N112W S TO SW WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE FROM
02N TO 10N BETWEEN 110W AND 122W WINDS 20 KT OR LESS. SEAS TO 8
FT IN SE SWELL.
.48 HOUR FORECAST LOW PRES NEAR 16.5N102W 1008 MB. WITHIN 90 NM
NE AND 120 NM SW SEMICIRCLES WINDS 20 TO 25 KT. SEAS TO 8 FT.
FROM 10N TO 13.5N BETWEEN 99W AND 111W SW TO W WINDS 20 TO 25
KT. SEAS TO 8 FT.

.06 HOUR FORECAST GULF OF CALIFORNIA N OF 30N SW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST GULF OF CALIFORNIA N OF 30N SW WINDS 20 TO 25
KT. SEAS LESS THAN 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 2115 UTC WED SEP 20...

.TROPICAL WAVE ALONG 98W...SCATTERED MODERATE TO STRONG
FROM 10N TO 18N BETWEEN 92W AND 104W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N74W TO 14.5N96W TO 10N122W TO BEYOND
13N140W. SCATTERED MODERATE TO STRONG WITHIN 180 NM EITHER SIDE
OF TROUGH FROM 78W TO 86W...AND WITHIN 150 NM S OF TROUGH
BETWEEN 105W AND 114W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



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