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High Seas Forecast
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000
FZPN03 KNHC 180912
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT MAY 18.
24 HOUR FORECAST VALID 0600 UTC SUN MAY 19.
48 HOUR FORECAST VALID 0600 UTC MON MAY 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST

.LOW PRES...REMNANTS OF ALVIN...NEAR 12N115.5W 1008 MB. WITHIN 210
NM NE QUADRANT OF LOW WINDS 20 TO 25 KT. SEAS 9 TO 11 FT.
ELSEWHERE WITHIN 300 NM OF LOW WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
PRIMARILY IN BROAD MIX OF SWELL. S OF 03S BETWEEN 105W AND 118W
WINDS 20 KT OR LESS. SEAS 8 FT IN SW SWELL.
.24 HOUR FORECAST LOW PRES...REMNANTS OF ALVIN...NEAR 12.5N117W
1008 MB. WITHIN 240 NM N SEMICIRCLE OF LOW WINDS 20 TO 25 KT.
SEAS 9 TO 11 FT. ELSEWHERE WITHIN 420 NM NW AND 150 NM SE
SEMICIRCLES OF LOW WINDS 20 KT OR LESS. SEAS TO 9 FT IN BROAD
MIX OF SWELL.
.48 HOUR FORECAST LOW PRES...REMNANTS OF ALVIN...NEAR 12N122W
1009 MB. WITHIN 330 NM N SEMICIRCLE OF LOW WINDS 20 TO 25 KT.
SEAS TO 11 FT.

.W OF A LINE FROM 18N140W TO 13N134W TO 08N140W 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.

.36 HOUR FORECAST N OF 29N BETWEEN 118W AND 124W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN NW SWELL.
.48 HOUR FORECAST N OF 27N BETWEEN 118W AND 125W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN NW SWELL.

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

CONVECTION VALID 0900 UTC SAT MAY 18...
.REMNANT LOW OF ALVIN...SCATTERED STRONG CONVECTION DEVELOPING
WITHIN 90 NM OVER THE SW SEMICIRCLE. SCATTERED MODERATE ISOLATED
STRONG WITHIN 180 NM OVER S QUADRANT OF LOW.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS FROM 07N78W TO 08N89W TO 07N98W TO 09N111W
THEN RESUMES FROM 10N118W TO 07N130W. ITCZ AXIS FROM 07N130W TO
05N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 120 NM OF LINES
FROM 06N95W TO 07N103W...FROM 09N111W TO 08N117W...AND FROM
11N118W TO 12N127W.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.

National Weather Service Weather Forecast Office