618 
FZPN03 KNHC 181530
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED DEC 18 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED DEC 18.
24 HOUR FORECAST VALID 1200 UTC THU DEC 19.
48 HOUR FORECAST VALID 1200 UTC FRI DEC 20.

.WARNINGS.

...STORM WARNING...
.WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W TO 13.5N95.5W... 
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 40 TO 50 KT. SEAS 14 
TO 22 FT. ELSEWHERE WITHIN 60 NM EITHER SIDE OF A LINE FROM 
16N95W TO 13.5N95.5W TO 12.5N96W N TO NE WINDS 30 TO 40 KT. SEAS 
12 TO 18 FT. REMAINDER OF AREA WITHIN 90 NM EITHER SIDE OF A 
LINE FROM 16N95W TO 12.5N96W TO 11N98W N TO NE WINDS 20 TO 30 
KT. SEAS 8 TO 12 FT.
.12 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 13.5N96W... INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 40 TO 
50 KT. SEAS 14 TO 23 FT. ELSEWHERE WITHIN 75 NM EITHER SIDE OF A 
LINE FROM 16N95W TO 13.5N96W TO 11N98W N TO NE WINDS 30 TO 40 
KT. SEAS 14 TO 20 FT. REMAINDER OF AREA WITHIN 120 NM EITHER 
SIDE OF A LINE FROM 16N95W TO 13.5N96W TO 11N98W TO 10N101W N TO 
NE WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST WITHIN 75 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 13N96.5W TO 12N98W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 30 TO 45 KT. SEAS 14 TO 22 FT. ELSEWHERE WITHIN 120 NM 
EITHER SIDE OF A LINE FROM 16N95W TO 13N96.5W TO 12N98W TO 
10N101W N TO NE WINDS 25 TO 30 KT. SEAS 12 TO 20 FT PRIMARILY IN 
N TO NE SWELL. REMAINDER OF THE AREA FROM 08N TO 12N BETWEEN 96W 
AND 104W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 14 FT PRIMARILY IN 
N TO NE SWELL. ELSEWHERE FROM 06N TO 14N BETWEEN 91W AND 100W 
AND FROM 06N TO 13N BETWEEN 90W AND 105W WINDS 20 KT OR LESS. 
SEAS 8 TO 12 FT PRIMARILY IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 13.5N96W N TO NE WINDS 30 TO 40 KT. SEAS 11 TO 16 FT. 
ELSEWHERE WITHIN 75 NM EITHER SIDE OF A LINE FROM 16N95W TO 
13.5N96W TO 11N100W N TO NE WINDS 20 TO 30 KT. SEAS 10 TO 14 FT. 
REMAINDER OF AREA FROM 00N TO 14N BETWEEN 90W AND 100W AND FROM 
10N TO 15N W OF 100W TO A LINE FROM 15N110W TO 10N110W TO 
00N102W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT PRIMARILY IN N TO 
NE SWELL.

.SYNOPSIS AND FORECAST.

.GULF OF CALIFORNIA N OF 24N NW TO N WINDS 20 TO 25 KT. SEAS 8 
FT.
.12 HOUR FORECAST GULF OF CALIFORNIA WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WEAKENING COLD FRONT FROM 30N122W TO 25N130W TO 23N140W. NW OF 
FRONT WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN NW SWELL. 
.24 HOUR FORECAST FRONT DISSIPATED. CONDITIONS MERGED.

.FROM 09N TO 22N W OF 130W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 
11 FT. ELSEWHERE N OF 09N W OF 125W WINDS 20 KT OR LESS. SEAS 8 
TO 9 FT IN NW SWELL.
.24 HOUR FORECAST FROM 10N TO 20N W OF 128W NE TO E WINDS 20 TO 
25 KT. SEAS 8 TO 11 FT. ELSEWHERE W OF A LINE FROM 30N115W TO 
20N118W TO 10N122W TO 06N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 
FT IN NW SWELL...HIGHEST N OF 28N BETWEEN 120W AND 125W.
.48 HOUR FORECAST ELSEWHERE W OF A LINE FROM 30N115W TO 20N112W 
TO 15N110W TO 10N110W TO 05N140W WINDS 20 KT OR LESS. SEAS 8 TO 
11 FT IN NW SWELL.

.12 HOUR FORECAST FROM 10N TO 11N E OF 87W...INCLUDING GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 11N86W 
TO 09.5N89W NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST 45 NM EITHER SIDE OF A LINE FROM 11N86W TO 
08N90W NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

.48 HOUR FORECAST COLD FRONT W OF AREA NEAR 30N142W. NW OF A 
LINE FROM 30N135W TO 29N140W S TO SW WINDS 20 TO 25 KT. SEAS 11 
TO 12 FT IN NW SWELL.

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

CONVECTION VALID AT 1500 UTC WED DEC 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM A 1007 MB LOW PRESSURE NEAR 
10N77W TO 06N95W TO 08N113W. THE ITCZ CONTINUES FROM 08N113W TO 
08N130W TO 06N140W. SCATTERED MODERATE ISOLATED STRONG IS NOTED 
N OF 04N E OF 83W TO THE COAST OF COLOMBIA...AND FROM 07N TO 10N 
BETWEEN 118W AND 124W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.