000
FZPN03 KNHC 180332
HSFEP2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC MON MAY 18 2009

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SYNOPSIS VALID 0000 UTC MON MAY 18.
24 HOUR FORECAST VALID 0000 UTC TUE MAY 19.
48 HOUR FORECAST VALID 0000 UTC WED MAY 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.GULF OF TEHUANTEPEC N WINDS TO 20 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WITHIN 60 NM EITHER SIDE OF LINE FROM 16N94.5W 
TO 13N96W INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WITHIN 90 NM EITHER SIDE OF LINE FROM 16N94.5W 
TO 13N97W TO 12N99W INCLUDING THE GULF OF TEHUANTEPEC...NE WINDS 
20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST WITHIN 120 NM EITHER SIDE OF LINE FROM 
16N94.5W TO 13N97W INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 11N TO 14N 
BETWEEN 94W AND 104W NE TO E WINDS TO 20 KT. SEAS TO 9 FT IN NE 
SWELL.

.TROUGH 14N113W TO LOW PRES 11N116W 1007 MB TROUGH TO 08N118W. N 
OF 16N WITHIN 150 NM W OF TROUGH NE WINDS TO 20 KT. SEAS LESS 
THAN 8 FT. S OF 15N WITHIN 150 NM E OF TROUGH SW WINDS TO 20 KT. 
SEAS TO 8 FT.  
.24 HOUR FORECAST LOW PRES 11N116W 1007 MB. WITHIN 180 NM OF LOW 
WINDS TO 20 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST LOW PRES 13N115W 1007 MB. WITHIN 180 NM OF LOW 
WINDS TO 20 KT. SEAS TO 8 FT.    

.TROUGH 30N123W TO 21N123W. N OF 25N WITHIN 420 NM W OF TROUGH N 
TO NE WINDS TO 20 KT. SEAS TO 9 FT IN N SWELL.
.24 HOUR FORECAST TROUGH 30N126W TO 22N127W. N OF 26N WITHIN 420 
NM W OF TROUGH NE WINDS TO 20 KT. SEAS TO 8 FT.
.48 HOUR FORECAST TROUGH DIFFUSE. WITHIN 360 NM W OF LINE 
30N129W TO 24N140W NE WINDS 20 KT. SEAS TO 8 FT.

.FROM 10N TO 17N W OF 135W NE WINDS TO 20 KT. SEAS 8 FT.
.06 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. 

.12 HOUR FORECAST FROM 23N TO 27N E OF 115W NW WINDS TO 20 KT. 
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. 

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

.CONVECTION VALID 0300 UTC MON MAY 18...

INTERTROPICAL CONVERGENCE ZONE...AXIS 08N77W TO 08N97W TO LOW 
PRES 11N115W TO 07N126W TO 08N140W. SCATTERED MODERATE ISOLATED 
STRONG WITHIN 150 NM EITHER SIDE OF LINE 03N85W TO 08N86W... 
WITHIN 300 NM OF 10N101W...AND WITHIN 240 NM EITHER SIDE OF 
LINE 17N110W TO 05N121W.

$$
.FORECASTER NELSON. TROPICAL PREDICTION CENTER.