000
FZPN03 KNHC 211547
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED MAR 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC WED MAR 21.
24 HOUR FORECAST VALID 1200 UTC THU MAR 22.
48 HOUR FORECAST VALID 1200 UTC FRI MAR 23.

.WARNINGS.

...GALE WARNING...
.GULF OF TEHUANTEPEC N OF 13.5N BETWEEN 94.5W AND 96W N WINDS 20 
TO 30 KT. SEAS TO 10 FT.
.12 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94.5W 
AND 95.5W N TO NE WINDS 25 TO 35 KT. SEAS TO 10 FT. 
.24 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 12N97W 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 25 TO 35 KT. SEAS 
8 TO 14 FT.
.30 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 13.5N96W 
TO 11N99W INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 
KT. SEAS 8 TO 13 FT. ELSEWHERE N OF 11N BETWEEN 94W AND 99W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT.
.36 HOUR FORECAST N OF 14N BETWEEN 94W AND 95.5W N TO NE WINDS 
25 TO 35 KT. SEAS 8 TO 11 FT. ELSEWHERE N OF 10.5N BETWEEN 94W 
AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST N OF 14N BETWEEN 94W AND 96W N TO NE WINDS 30 
TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE N OF 11N BETWEEN 93.5W AND 
98.5W NE WINDS 20 TO 25 KT. SEAS 8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N128W TO 21N140W. W OF LINE FROM 30N125W TO 
17N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.06 HOUR FORECAST COLD FRONT FROM 30N126W TO 18N138W. SURFACE 
TROUGH FROM 30N137W TO 28N140W. W OF THE TROUGH N WINDS 20 TO 25 
KT. SEAS 10 TO 14 FT. ELSEWHERE W OF A LINE FROM 30N125W AND 
15N140W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.  
.24 HOUR FORECAST COLD FRONT FROM 30N122W TO 22N130W. NW OF LINE 
FROM 30N131W TO 25N140W N TO NE WINDS 20 TO 25 KT. SEAS 10 TO 13 
FT. ELSEWHERE W OF A LINE FROM 30N121W TO 09N135W WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. W OF LINE FROM 30N121W 
TO 14N136W AND A LINE FROM 13N121W TO 02N140W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN NW SWELL.

.WITHIN 15 NM OF LINE FROM 11N85.5W TO 11N88W INCLUDING GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 09N TO 12N E OF 90W NE WINDS 20 TO 30 KT. 
SEAS 8 TO 10 FT. 
.48 HOUR FORECAST FROM 7.5N TO 12.5N E OF 91.5W INCLUDING GULF 
OF PAPAGAYO...NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. 

.12 HOUR FORECAST N OF 07N BETWEEN 78.5W AND 80W...INCLUDING 
GULF OF PANAMA...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST N OF 5.5N BETWEEN 78W AND 80.5W...INCLUDING 
GULF OF PANAMA...N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 1545 UTC WED MAR 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 07N77W TO 04N92W. ITCZ FROM 04N92W TO 
05N120W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 04N 
TO 09N BETWEEN 117W AND 129W. SCATTERED MODERATE FROM 0N TO 07N 
BETWEEN 84W AND 100W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.