000
FZPN03 KNHC 201612
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE MAR 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE MAR 20.
24 HOUR FORECAST VALID 1200 UTC WED MAR 21.
48 HOUR FORECAST VALID 1200 UTC THU MAR 22.

.WARNINGS.

...GALE WARNING...
.COLD FRONT FROM 30N129W TO 20N140W. N OF 26N WITHIN 210 NM E OF 
FRONT S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. LOW PRES NW OF AREA 
NEAR 31N140W.
NW OF A LINE FROM 30N135W TO 26N140W SW WINDS 30 TO 35 KT. SEAS 
13 TO 19 FT. ELSEWHERE W OF LINE FROM 30N130W TO 22N140W SW 
WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. 
.09 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 30N130W TO 
22N137W. COLD FRONT FROM 30N133W TO 27N137W. N OF 25N WITHIN 120 
NM E OF COLD FRONT S WINDS 20 TO 25 KT. SEAS 12 TO 17 FT.
N OF 28N W OF COLD FRONT TO 138W W WINDS 20 TO 30 KT. SEAS 17 
TO 18 FT. ELSEWHERE W OF LINE FROM 30N124W TO 21N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.18 HOUR FORECAST FRONTAL TROUGH FROM 30N130W TO 22N136W. COLD 
FRONT FROM 30N131W TO 27N135W. W OF LINE FROM 30N125W TO 19N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N130W TO 28N133W. W OF 
LINE FROM 30N125W TO 17N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 
FT IN NW SWELL.
.36 HOUR FORECAST COLD FRONT 30N126W TO 20N136W. N OF 25N WITHIN 
60 NM E OF THE FRONT SW WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. 
ELSEWHERE W OF A LINE FROM 30N135W TO 27N140W NW TO N WINDS 20 
TO 25 KT. SEAS 12 TO 15 FT. REMAINDER OF THE AREA W OF LINE FROM 
30N124W TO 12N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW 
SWELL.
.48 HOUR FORECAST DISSIPATING COLD FRONT 30N121W TO 24N128W. W 
OF LINE FROM 30N122W TO 26N125W TO 20N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 13 FT IN NW SWELL. ELSEWHERE W OF A LINE FROM 19N127W 
TO 09N135W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.

...GALE WARNING...
.18 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94.5W 
AND 95.5W N WINDS 20 TO 30 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO 14.5N95W 
TO 13.5N96W
...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. 
SEAS 8 TO 11 FT.
.36 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 
95.5W N TO NE WINDS 30 TO 35 KT. SEAS 10 TO 11 FT. ELSEWHERE N 
OF 14.5N BETWEEN 94W AND 95.5W N WINDS 20 TO 30 KT. SEAS 8 TO 10 
FT. REMAINDER AREA N OF 12N BETWEEN 94W AND 98W WINDS 20 KT OR 
LESS. SEAS TO 9 FT. 
.48 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N95.5W 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. SEAS 
9 TO 13 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 
14N95.5W TO 12N97W...INCLUDING GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.FROM 19N TO 21N BETWEEN 105W AND 107W NW TO N WINDS 20 TO 25 
KT. SEAS TO 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.18 HOUR FORECAST GULF OF PAPAGAYO NE TO E WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST GULF OF PAPAGAYO NE TO E WINDS 20 TO 25 KT. 
SEAS TO 8 FT.
.48 HOUR FORECAST FROM 09N TO 12N E OF 91W...INCLUDING GULF OF 
PAPAGAYO... NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.

.36 HOUR FORECAST N OF 06N BETWEEN 79W AND 81W...INCLUDING GULF 
OF PANAMA...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST N OF 05.5N BETWEEN 79W AND 81W...INCLUDING GULF 
OF PANAMA...N WINDS 20 TO 25 KT. SEAS TO 8 FT

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

CONVECTION VALID AT 1545 UTC TUE MAR 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 09N84W TO 03N96W TO 04N108W. ITCZ FROM 
04N108W TO 06N120W TO 06N140W. SCATTERED MODERATE ISOLATED 
STRONG WITHIN 90 NM EITHER SIDE OF ITCZ AXIS W OF 115. 

$$
.FORECASTER NR. NATIONAL HURRICANE CENTER.