000
FZPN03 KNHC 201504
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1630 UTC MON FEB 20 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON FEB 20.
24 HOUR FORECAST VALID 1200 UTC TUE FEB 21.
48 HOUR FORECAST VALID 1200 UTC WED FEB 22.

.WARNINGS.

...GALE WARNING...
.36 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING 
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT.
.42 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING 
THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 8 TO 11 FT. 
ELSEWHERE N OF 14N BETWEEN 94W AND 96W N TO NE WINDS 20 TO 30 
KT. SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 15N95W TO 13.5N95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N 
TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 45 NM 
EITHER SIDE OF LINE FROM 16N95W TO 15N95W TO 13N95.5W WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.

.SYNOPSIS AND FORECAST. 

.COLD FRONT FROM 30N132W TO 24N140W. N OF 28N WITHIN 90 NM SE OF 
FRONT SW WINDS 20 TO 25 KT. SEAS 11 TO 14 FT IN NW SWELL. N OF 
26N W OF FRONT W TO NW WINDS 20 TO 30 KT. SEAS 12 TO 19 FT IN NW 
SWELL...HIGHEST NW PART. ELSEWHERE NW OF LINE FROM 30N123W TO 
25N131W TO 24N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW 
SWELL.  
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 30N126W TO 26N130W 
THEN DISSIPATING STATIONARY TO 21N140W. N OF LINE FROM 29N115W 
TO 25N118W TO 20N131W TO 13N140W WINDS 20 KT OR LESS. SEAS 8 TO 
14 FT IN NW SWELL...HIGHEST NEAR 30N133W.
.36 HOUR FORECAST N OF LINE FROM 24N115W TO 08N119W TO 07N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL...MIXED WITH NE 
SWELL S OF 20N. 
.48 HOUR FORECAST FROM 21N TO 24N W OF 137W NE WINDS 20 TO 25 
KT. SEAS 9 TO 10 FT. ELSEWHERE AREA BOUNDED BY 24N115W TO 
08N126W TO 05N140W TO 25N140W TO 27N135W TO 30N135W TO 30N116W 
TO 24N115W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW 
SWELL...MIXED WITH NE SWELL S OF 20N. 

.WITHIN AREA BOUNDED BY 30N119W TO 30N116W TO 23N110W TO 21N106W 
TO 17N104W TO 09N112W TO 07N125W TO 13N137W TO 30N116W WINDS 20 
KT OR LESS. SEAS 8 TO 12 FT PRIMARILY IN NW SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 20N131W TO 22N109W TO 
15N100W TO 03N110W TO 07N125W TO 07N135W TO 10N140W TO 13N140W 
TO 20N131W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT PRIMARILY IN NW 
SWELL.
.36 HOUR FORECAST CONDITIONS MERGED WITH PARAGRAPH ABOVE.

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

CONVECTION VALID AT 1500 UTC MON FEB 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
ITCZ FROM 09N121W TO 05N130W TO 04N137W TO BEYOND 02N140W. NO 
SIGNIFICANT CONVECTION. 

$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.