High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 212156
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT OCT 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT OCT 21.
24 HOUR FORECAST VALID 1800 UTC SUN OCT 22.
48 HOUR FORECAST VALID 1800 UTC MON OCT 23.

.WARNINGS.

...GALE WARNING...
.30 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND
95.5W N WINDS 20 TO 25 KT. SEAS BUILDING TO 8 FT.
.42 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W
TO 14N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS
30 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE
OF A LINE FROM 16N95W TO 13N95.5W N TO NE WINDS 20 TO 30 KT. SEAS
8 TO 11 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.WITHIN AREA BOUNDED BY 21N112W TO 10N127W TO 09N140W TO 30N140W
TO 30N116W TO 21N112W...INCLUDING SEBASTIAN VIZCAINO BAY...
WINDS 20 KT OR LESS. SEAS 8 TO 16 FT IN NW SWELL...HIGHEST NEAR
30N120W.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 06N114W TO 03.4S111W
TO 00N140W TO 30N140W TO 30N116W TO 18N107W TO 06N114W...
INCLUDING SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO
12 FT IN NW SWELL...HIGHEST NEAR 24N118W.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 06N101W TO 03.4S110W
TO 03.4S120W TO 00N140W TO 30N140W TO 30N117W TO 06N101W WINDS
20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.

.WITHIN AREA BOUNDED BY 03.4S116W TO 03.4S120W TO 02S120W TO
02S118W TO 03.4S116W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN S TO
SW SWELL.
.24 HOUR FORECAST CONDITIONS MERGE.

.WITHIN AREA BOUNDED BY 04N81W TO 03N83W TO 04N85W TO 05N85W TO
06N83W TO 05N81W TO 04N81W...INCLUDING NEAR THE AZUERO
PENINSULA...WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SW AND NW
SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.18 HOUR FORECAST GULF OF CALIFORNIA N OF 24N W OF 110W NW TO N
WINDS 20 TO 25 KT. SEAS BUILDING TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST GULF OF CALIFORNIA N OF 30N W OF 113.5W NW TO N
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 2100 UTC SAT OCT 21...

.NUMEROUS MODERATE SCATTERED STRONG N OF 05N E OF 80W...INCLUDING
THE GULF OF PANAMA.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 09N78W TO 10N89W TO 08N98W TO
10N112W TO 09N120W. ITCZ AXIS EXTENDS FROM 09N120W TO 10N130W TO
09N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 75 NM EITHER
SIDE OF AXIS BETWEEN 95W AND 106W...WITHIN 120 NM S OF A LINE
FROM 11N110W TO 10N116W TO 08N121W...AND FROM 08N TO 10N W OF
128W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.



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