000
FZPN03 KNHC 182124
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT MAY 18 2013

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SAT MAY 18.
24 HOUR FORECAST VALID 1800 UTC SUN MAY 19.
48 HOUR FORECAST VALID 1800 UTC MON MAY 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST

.LOW PRES...REMNANTS OF ALVIN...NEAR 12N117W 1007 MB MOVING W AT
10 KT. WITHIN 210 NM NE SEMICIRCLE...EXCEPT 150 NM SE QUADRANT
OF LOW WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 330
NM OF LOW...EXCEPT 390 NM SE QUADRANT WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN A BROAD MIX OF SWELL. S OF 06N BETWEEN 100W AND
125W WINDS 20 KT OR LESS. SEAS TO 9 FT IN SW SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
12N121W 1007 MB. WITHIN 240 NM N AND NE QUADRANTS OF LOW WINDS
20 TO 30 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 420 NM N
SEMICIRCLE AND 120 NM S SEMICIRCLE OF LOW WINDS 20 KT OR LESS.
SEAS TO 9 FT IN A BROAD MIX OF SWELL. S OF 06N BETWEEN 108W AND
126W WINDS 20 KT OR LESS. SEAS TO 9 FT IN SW SWELL.
.48 HOUR FORECAST LOW PRES...REMNANTS OF ALVIN...NEAR 11.5N125W
1009 MB. WITHIN 180 NM N QUADRANT OF LOW WINDS 20 TO 25 KT. SEAS
8 TO 10 FT. ELSEWHERE WITHIN 330 NM N SEMICIRCLE OF LOW WINDS 20
KT OR LESS. SEAS TO 9 FT IN A BROAD MIX OF SWELL. S OF 05N
BETWEEN 95W AND 125W WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL.

.W OF A LINE FROM 18N140W TO 12N127W TO 06N140W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN MIXED NE AND SW SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST N OF 29N BETWEEN 118W AND 123W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN MIXED SW AND NW SWELL.
.48 HOUR FORECAST N OF 28N BETWEEN 119W AND 127W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN PRIMARILY NW SWELL.

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

CONVECTION VALID 2100 UTC SAT MAY 18...
.LOW PRES...REMNANTS OF ALVIN...NEAR 12N117W 1007 MB...NUMEROUS
MODERATE TO STRONG WITHIN 240 NM E QUADRANT. SCATTERED MODERATE
ISOLATED STRONG ELSEWHERE FROM 12N TO 16N BETWEEN 111W AND 117W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS FROM 08N78W TO 09N86W TO LOW PRES NEAR
06N101W 1011 MB TO LOW PRES...REMNANTS OF ALVIN...NEAR 12N118W
1007 MB TO 09N125W. ITCZ AXIS FROM 09N125W TO 05N140W. SCATTERED
MODERATE FROM 05N TO 07N BETWEEN 80W AND 85W...WITHIN 180 NM S
OF MONSOON TROUGH BETWEEN 92W AND 103W...WITHIN 120 NM EITHER
SIDE OF MONSOON TROUGH BETWEEN 120W AND 124W...AND FROM 06N TO
08N BETWEEN 129W AND 134W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.