000
FZPN03 KNHC 182154
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED DEC 18.
24 HOUR FORECAST VALID 1800 UTC THU DEC 19.
48 HOUR FORECAST VALID 1800 UTC FRI DEC 20.

.WARNINGS.

...STORM WARNING...
.WITHIN 15N94W TO 14N96W TO 15N96W TO 16N95W TO 16N94W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 40
TO 50 KT. SEAS 18 TO 25 FT. ELSEWHERE WITHIN 12N95W TO 12N97W 
TO 14N97W TO 16N95W TO 15N93W TO 12N95W N TO NE WINDS 30 TO 40 
KT. SEAS 15 TO 20 FT. REMAINDER OF AREA WITHIN 10N95W TO 
11N100W TO 16N96W TO 16N93W TO 13N92W TO 10N95W N TO NE WINDS 20
TO 30 KT. SEAS 8 TO 14 FT IN MIXED NE AND NW SWELL.
.18 HOUR FORECAST WITHIN 14N94W TO 12N96W TO 13N98W TO 16N95W 
TO 16N93W TO 14N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 30 TO 45 KT. SEAS 17 TO 23 FT. ELSEWHERE WITHIN 11N94W
TO 08N97W TO 09N103W TO 12N103W TO 15N93W TO 11N94W N TO NE 
WINDS 20 TO 30 KT. SEAS 14 TO 18 FT. REMAINDER OF AREA WITHIN 
09N91W TO 06N97W TO 11N105W TO 14N100W TO 15N93W TO 09N91W WINDS 
20 KT OR LESS. SEAS 8 TO 13 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 13N95W TO 14N97W TO 16N96W TO 16N94W 
TO 15N94W TO 13N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 30 TO 45 KT. SEAS 16 TO 20 FT. ELSEWHERE WITHIN 12N95W
TO 11N99W TO 16N96W TO 16N94W TO 13N94W TO 12N95W N TO NE WINDS 
20 TO 30 KT. SEAS 8 TO 13 FT. REMAINDER OF AREA WITHIN 03N93W 
TO 02N101W TO 12N109W TO 15N93W TO 08N88W TO 03N93W WINDS 20 KT 
OR LESS. SEAS 8 TO 13 FT IN N TO NE SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.WITHIN 23N109W TO 24N110W TO 28N113W TO 29N112W TO 27N111W TO
23N109W...INCLUDING GULF OF CALIFORNIA...NW WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 25N110W TO 24N111W TO 28N113W TO 
29N112W TO 27N111W TO 25N110W...INCLUDING GULF OF CALIFORNIA... 
NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.COLD FRONT FROM 30N121W TO 24N130W TO 22.5N140W. WITHIN 
13N129W TO 11N131W TO 10N140W TO 21N140W TO 22N130W TO 13N129W NE
TO E WINDS 20 TO 25 KT. SEAS 9 TO 12 FT IN NW SWELL. ELSEWHERE 
WITHIN 12N125W TO 08N140W TO 22N133W TO 30N140W TO 30N121W TO 
12N125W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN NW SWELL... 
HIGHEST NEAR 30N130W.
.24 HOUR FORECAST FRONT DISSIPATED. WEAK TROUGH FROM 25N115W TO
23N130W TO 20N140W. WITHIN 07N129W TO 07N140W TO 30N140W TO 
30N116W TO 25N115W TO 07N129W NE TO E WINDS 20 TO 25 KT. SEAS 9 
TO 11 FT IN NW SWELL. ELSEWHERE WITHIN 13N137W TO 10N137W TO 
09N140W TO 17N140W TO 17N136W TO 13N137W WINDS 20 KT OR LESS. 
SEAS 8 TO 12 FT IN NW SWELL...HIGHEST NEAR 30N120W.
.48 HOUR FORECAST TROUGH DISSIPATED. NEW COLD FRONT FROM 30N139W
TO 29N140W. WITHIN 29N132W TO 27N136W TO 28N140W TO 30N140W TO 
30N131W TO 29N132W SW WINDS 20 TO 25 KT...EXCEPT NW WINDS BEHIND
FRONT. SEAS 11 TO 15 FT IN NW SWELL. WITHIN 10N112W TO 10N128W 
TO 07N140W TO 28N140W TO 29N116W TO 10N112W NE TO E WINDS 20 TO 
25 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 09N136W TO 09N140W TO 
10N140W TO 13N133W TO 12N132W TO 09N136W WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN NW SWELL.

.06 HOUR FORECAST WITHIN 11N86W TO 10N88W TO 11N88W TO 11N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 08N89W TO 10N89W TO 11N87W TO 11N86W TO
10N86W TO 08N89W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 
TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2030 UTC WED DEC 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08.5N78.5W TO 05N95W TO LOW PRES NEAR 
08N112W TO 08N115W. ITCZ FROM 08N115W TO 08N123W TO 07N140W. 
SCATTERED MODERATE ISOLATED STRONG FROM 04N TO 10N E OF 86W AND 
ALSO FROM 08N TO 10N BETWEEN 127W AND 133W. SCATTERED MODERATE 
FROM 07N TO 09N BETWEEN 109W AND 116W AND ALSO FROM 06N TO 13N 
BETWEEN 116W AND 122W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.