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High Seas Forecast (Tropical NE Pacific)



000
FZPN03 KNHC 181523
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT JAN 18 2020

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT JAN 18.
24 HOUR FORECAST VALID 1200 UTC SUN JAN 19.
48 HOUR FORECAST VALID 1200 UTC MON JAN 20.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W...INCLUDING GULF OF 
TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 9 TO 12 FT. ELSEWHERE 
WITHIN 45 NM OF LINE FROM 16N95W TO 15N95W TO 13N96.5W N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA FROM 06N 
TO 11N BETWEEN 96W AND 110W WINDS 20 KT OR LESS. SEAS 8 FT IN 
MIXED NE AND SW SWELL.
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 
14.5N95W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. 
SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO 
14.5N95W TO 12N96.5W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 
.36 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N95W... 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. SEAS 
10 TO 15 FT. ELSEWHERE WITHIN 60 OF LINE FROM 16N95W TO 14N95W 
TO 12N96W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER 
OF AREA FROM 10N TO 13N BETWEEN 94.5W AND 98.5W WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN MIXED NE AND SW SWELL.
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 15N95W TO 
13N96W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 
KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN 75 OF LINE FROM 16N95W TO 
13N96W TO 10.5N98.5W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.WITHIN 30 NM OF LINE FROM 11N86W TO 09.5NN88.5W...INCLUDING 
GULF OF PAPAGAYO...NE WINDS 30 TO 35 KT. SEAS 9 TO 12 FT. 
ELSEWHERE WITHIN 75 NM OF LINE FROM 11N86W TO 09N91W NE TO E 
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST WITHIN 75 NM OF LINE FROM 11N86W TO 09N91W... 
INCLUDING GULF OF PAPAGAYO...NE TO E WINDS 20 TO 30 KT WITH 
FREQUENT GUSTS TO GALE FORCE. SEAS 8 TO 11 FT.
.48 HOUR FORECAST WITHIN 60 NM OF LINE FROM 11N86W TO 09N89W... 
INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 30 KT WITH FREQUENT 
GUSTS TO GALE FORCE. SEAS 8 TO 10 FT.

.SYNOPSIS AND FORECAST.

.N OF 04N BETWEEN 79W AND 81W...INCLUDING THE GULF OF PANAMA...
N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST N OF 05N BETWEEN 79W AND 81W...INCLUDING THE 
GULF OF PANAMA...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA S OF 29N NW WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT. FROM 21N TO 23N BETWEEN 107W AND 111W N WINDS 20 TO 
25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE. 
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.LOW PRES W OF AREA NEAR 26N142W 1012 MB WITH COLD FRONT TO NEAR 
16N145W. FROM 18N TO 26N W OF 135W SE WINDS 20 TO 25 KT. SEAS 8 
TO 10 FT.
.24 HOUR FORECAST LOW PRES N OF AREA WITH COLD FRONT FROM 
30N137W TO 26N138W TO 22N140W. W OF FRONT N WINDS 20 TO 25 KT. 
SEAS 9 T O 13 FT IN NW SWELL. N OF 20N E OF FRONT TO 131W SE TO 
S WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST LOW PRES NEAR 27N130W 1011 MB WITH COLD FRONT 
TO 21N132W. FROM 25N TO 28N BETWEEN 127W AND 130W S TO SW WINDS 
20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE N OF 20N W OF 130W WINDS 
20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL...EXCEPT 12 TO 15 FT 
IN NW SWELL W OF A LINE FROM 30N135W TO 25N140W. 

.FROM 08N TO 15N W OF 130W AND FROM 08N TO 20N BETWEEN 120W AND 
130W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE W OF 
A LINE FROM 26N140W TO 20N120W TO 10N110W TO 00N135W WINDS 20 KT 
OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST W OF A LINE FROM 14N140W TO 18N130W TO 16N120W 
TO 08N108W TO 04N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN 
MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 11N TO 15N W OF 134W NE WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT. ELSEWHERE W OF A LINE FROM 20N132W TO 
16N135W TO 08N127W TO 10N140W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN MIXED NE AND NW SWELL. FROM 08N TO 11N BETWEEN 116W AND 
124W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE AND NW SWELL.

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

CONVECTION VALID AT 1500 UTC SAT JAN 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS FROM NEAR 05N77W TO 04N80W TO 06N87W TO 
05N97W. THE ITCZ CONTINUES FROM 05N97W TO 06N120W TO BEYOND 
08N140W. SCATTERED MODERATE CONVECTION IS FROM 06N TO 09N W OF 
129W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.