000
FZPN03 KNHC 210330
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
ISSUED BY NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED MAR 21.
24 HOUR FORECAST VALID 0000 UTC THU MAR 22.
48 HOUR FORECAST VALID 0000 UTC FRI MAR 23.

.WARNINGS.

...GALE WARNING...
.09 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 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. 
.36 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W 
INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. SEAS 
10 TO 14 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 
15N95W TO 12N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 94.5W AND 
96W N TO NE WINDS 30 TO 35 KT. SEAS 9 TO 11 FT.  ELSEWHERE 
WITHIN 45 NM OF LINE FROM 16N95W TO 14N95.5W N TO NE WINDS 20 TO 
30 KT. SEAS 8 TO 10 FT. FROM 10N TO 14N BETWEEN 95W AND 99W 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE SWELL.

.SYNOPSIS AND FORECAST.

.STATIONARY FRONT FROM 30N128W TO 20N140W. COLD FRONT FROM 
30N132W TO 24N140W. N OF 29N W OF COLD FRONT TO 137W W WINDS 20 
TO 25 KT. SEAS 12 TO 18 FT. ELSEWHERE W OF LINE FROM 30N125W TO 
20N140W WINDS 20 KT OR LESS. SEAS 8 TO 17 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N127W TO 20N136W. N OF 29N W 
OF 136W N WINDS 20 TO 25 KT. SEAS 10 TO 14 FT. ELSEWHERE W OF A 
LINE FROM 30N124W TO 13N140W WINDS 20 KT OR LESS. SEAS 8 TO 11 
FT IN NW SWELL.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N119W TO 
23N124W. W OF LINE FROM 30N125W TO 20N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 11 FT IN NW SWELL. FROM 06N TO 13N W OF 127W WINDS 20 
KT OR LESS. SEAS TO 9 FT IN NW SWELL.

.12 HOUR FORECAST GULF OF PAPAGAYO NE TO E WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 45 NM OF LINE FROM 11N85.5W TO 10N88W 
INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 11N85.5W TO 09N90W 
INCLUDING GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.24 HOUR FORECAST N OF 06.5N BETWEEN 78.5W 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 LESS THAN 8 FT.

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

CONVECTION VALID AT 0300 UTC WED MAR 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N84W TO 04N93W. ITCZ FROM 04N93W TO 
04N113W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 
60 NM S AND 90 NM N OF ITCZ AXIS BETWEEN 120W AND 136W. 

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.