000
FZPN03 KNHC 192116
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED DEC 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED DEC 19.
24 HOUR FORECAST VALID 1800 UTC THU DEC 20.
48 HOUR FORECAST VALID 1800 UTC FRI DEC 21.

.WARNINGS.

...GALE WARNING...
.30 HOUR FORECAST WITHIN 15 NM EITHER SIDE OF LINE FROM 16N95W 
TO 15N95W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. 
SEAS LESS THAN 8 FT. ELSEWHERE N OF 14N BETWEEN 94.5W AND 95.5W 
N WINDS 20 TO 30 KT. SEAS BUILDING TO 8 FT.
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14N95.5W TO 13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE 
WINDS 30 TO 45 KT. SEAS 12 TO 18 FT. ELSEWHERE WITHIN 90 NM 
EITHER SIDE OF LINE FROM 16N95W TO 14N95W TO 11N98.5W N TO NE 
WINDS 20 TO 30 KT. SEAS 10 TO 15 FT. REMAINDER OF AREA BOUNDED 
BY 16N95W TO 13N92W TO 09N97W TO 13N102W TO 16N95W WINDS 20 KT 
OR LESS. SEAS 8 TO 12 FT IN MIXED NE AND NW SWELL.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA WITHIN 60 NM OF THE COAST OF BAJA CALIFORNIA 
FROM 24N TO 28N NW TON WINDS 20 TO 25 KT. TO 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.COLD FRONT APPROACH 30N140W. NW OF LINE FROM 30N130W TO 21N140W 
WINDS 20 KT OR LESS. SEAS 12 TO 15 FT IN NW SWELL. ELSEWHERE FOR 
OPEN WATERS W OF 100W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN NW 
SWELL...HIGHEST NEAR 13N116W.
.24 HOUR FORECAST COLD FRONT FROM 30N135W TO 26N140W. OPEN 
WATERS W OF 93W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN NW 
SWELL...HIGHEST NEAR 30N121W.
.36 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 30N131W TO 
27N136W. FROM 10N TO 14N W OF 135W NE WINDS 20 TO 25 KT.
SEAS 11 TO 12 FT. ELSEWHERE W OF LINE FROM 30N116W TO 16N106W TO 
04N91W TO 03.4S93W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW 
SWELL. 
.48 HOUR FORECAST FRONT DISSIPATED. FROM 10N TO 14N W OF 136W NE 
WINDS 20 TO 25 KT. SEAS 11 TO 12 FT. ELSEWHERE W OF LINE FROM 
30N116W TO 12N103W TO 03N92W TO 03.4S91W WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN NW SWELL. 

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

CONVECTION VALID AT 2045 UTC WED DEC 19...

.SCATTERED MODERATE FROM 12.5N TO 14.5N BETWEEN 116W AND 122W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 06N74W TO 05N79W TO 06N88W TO 05N97W. ITCZ 
CONTINUES FROM 05N97W TO 05N117W TO BEYOND 08N140W. SCATTERED 
MODERATE ISOLATED STRONG FROM 06N TO 10N W OF 130W. SCATTERED 
MODERATE FROM 04N TO 07N BETWEEN 86W AND 91W.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.