000
FZPN03 KNHC 212036
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED MAR 21.
24 HOUR FORECAST VALID 1800 UTC THU MAR 22.
48 HOUR FORECAST VALID 1800 UTC FRI MAR 23.

.WARNINGS.

...GALE WARNING...
.GULF OF TEHUANTEPEC N OF 13N BETWEEN 94.5W AND 97W NE WINDS 20 
TO 25 KT. SEAS TO 9 FT.
.09 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 
95.5W N TO NE WINDS 30 TO 35 KT. SEAS TO 11 FT. ELSEWHERE N OF 
14.5N BETWEEN 94W AND 95.5W N WINDS 20 TO 30 KT. SEAS 8 TO 10 
FT. 
.18 HOUR FORECAST GULF OF TEHUANTEPEC N OF 13.5N BETWEEN 94.5W 
AND 95.5W N TO NE WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE 
N OF 12.5N BETWEEN 94W AND 97W N TO NE WINDS 20 TO 25 KT. SEAS 8 
TO 11 FT. 
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 12N96.5W 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 
8 TO 12 FT. ELSEWHERE N OF 11N BETWEEN 94W AND 98W WINDS 20 KT 
OR LESS. SEAS 8 TO 11 FT.
.33 HOUR FORECAST N OF 13.5N BETWEEN 94W AND 96.5W N TO NE WINDS 
25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE N OF 10.5N BETWEEN 94W 
AND 99W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST N OF 13N BETWEEN 94.5W AND 96.5W N TO NE WINDS 
20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE N OF 11N BETWEEN 94W AND 
99W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N127W TO 20N138W. LOW PRES NEAR 29N138W 1010 
MB WITH ASSOCIATED TROUGH EXTENDING FROM 30N136W TO 27N140W. W 
OF THE LOW AND TROUGH N WINDS 20 TO 25 KT. SEAS 12 TO 13 FT. 
ELSEWHERE W OF LINE FROM 30N125W TO 15N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N120W TO 21N129W. NW OF LINE 
FROM 30N128W TO 21N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN 
NW SWELL. ELSEWHERE W OF LINE FROM 15N128W TO 07N140W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 30N116W TO 28N114W. W OF LINE 
FROM 30N120W TO 21N140W AND FROM 07N TO 11N WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NW SWELL.

.09 HOUR FORECAST FROM 10N TO 11.5N E OF 88W...INCLUDING GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 08N TO 11N E OF 90W NE WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT. 
.48 HOUR FORECAST FROM 7N TO 11.5N E OF 92W...INCLUDING GULF OF 
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 
07N TO 11.5N E OF 94W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT.  

.09 HOUR FORECAST N OF 06N BETWEEN 78.5W AND 80.5W...INCLUDING 
GULF OF PANAMA...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 
.30 HOUR FORECAST N OF 5.5N BETWEEN 78.5W AND 81W N WINDS 20 TO 
25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

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

CONVECTION VALID AT 2030 UTC WED MAR 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 07N77W TO 04N91W. ITCZ FROM 04N91W TO 
05N120W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 04N 
TO 08N BETWEEN 116W AND 126W. SCATTERED MODERATE FROM 02N TO 08N 
BETWEEN 84W AND 99W.

$$
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.