High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 202058
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED AUG 20 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED AUG 20.
24 HOUR FORECAST VALID 1800 UTC THU AUG 21.
48 HOUR FORECAST VALID 1800 UTC FRI AUG 22.

...TROPICAL STORM WARNING...
.TROPICAL STORM KARINA NEAR 15.7N 136.7W 994 MB AT 2100 UTC AUG
20 MOVING IS STATIONARY. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65
KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM W SEMICIRCLE...50 NM
NE QUADRANT AND 40 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN
100 NM OF CENTER EXCEPT 90 NM SW QUADRANT WITH SEAS TO 19 FT.
ELSEWHERE WITHIN 180 NM N AND 240 NM S SEMICIRCLES WINDS 20 TO
33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 11N TO 19N W OF
130W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN A BROAD MIX OF SWELL.
.24 HOUR FORECAST TROPICAL STORM KARINA NEAR 15.2N 136.4W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. LITTLE CHANGE IN
RADIUS OF TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER
WITHIN 150 NM OF CENTER WITH SEAS TO 21 FT. ELSEWHERE WITHIN 180
NM N AND 240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12
FT. REMAINDER OF AREA FROM 11N TO 20N W OF 130W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN A BROAD MIX OF SWELL.
.48 HOUR FORECAST TROPICAL STORM KARINA NEAR 15.5N 135.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM W SEMICIRCLE...50 NM NE QUADRANT AND 60 NM SE
QUADRANT. SEAS 12 FT OR GREATER WITHIN 105 NM E SEMICIRCLE WITH
SEAS TO 14 FT. ELSEWHERE WITHIN 180 NM OF CENTER...EXCEPT 300 NM
SE QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF
AREA FROM 09N TO 24N W OF 130W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN A BROAD MIX OF SWELL.
.72 HOUR FORECAST TROPICAL STORM KARINA NEAR 17.5N 132.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM KARINA NEAR 21.0N 128.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW KARINA NEAR 27.0N
130.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM LOWELL NEAR 19.4N 121.5W 988 MB AT 2100 UTC AUG
20 MOVING NW OR 315 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...180 NM SE QUADRANT...150 NM SW QUADRANT...AND 110 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM W SEMICIRCLE...
270 NM NE QUADRANT AND 360 NM SE QUADRANT WITH SEAS TO 21 FT.
ELSEWHERE WITHIN 300 NM NW AND 420 NM SE SEMICIRCLES WINDS 20
TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 11N TO 25N
BETWEEN 111W AND 130W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN A
BROAD MIX OF SWELL.
.24 HOUR FORECAST TROPICAL STORM LOWELL NEAR 20.6N 122.6W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 120 NM W SEMICIRCLE...150 NM NE QUADRANT AND 180 NM
SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM NE AND 300 NM
SE QUADRANTS...AND 240 NM W SEMICIRCLE WITH SEAS TO 22 FT.
ELSEWHERE 330 NM OF CENTER...EXCEPT 420 NM SE QUADRANT WINDS
20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 10N TO 26N
BETWEEN 111W AND 130W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN A
BROAD MIX OF SWELL.
.48 HOUR FORECAST TROPICAL STORM LOWELL NEAR 22.8N 124.9W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 150 NM E SEMICIRCLE AND 120 NM W SEMICIRCLE. SEAS
12 FT OR GREATER WITHIN 300 NM E SEMICIRCLE...180 NM SW AND 240
NM NW QUADRANTS WITH SEAS TO 23 FT. ELSEWHERE WITHIN 240 NM OF
CENTER...EXCEPT 300 NM NW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO
12 FT. REMAINDER OF AREA N OF 07N BETWEEN 112W AND 130W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN A BROAD MIX OF SWELL.
.72 HOUR FORECAST TROPICAL STORM LOWELL NEAR 24.9N 127.8W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 26.5N
130.5W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 27.5N
133.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 09.5N94W 1008 MB. FROM 11N TO 13N BETWEEN 87W AND
94W E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
10N98W 1007 MB. FROM 11N TO 15N BETWEEN 91W AND 99W E TO SE
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. FROM 04N TO 07N BETWEEN 95W
AND 100W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SW AND NW SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
11N102W 1006 MB. WITHIN 360 NM N SEMICIRCLE AND SE QUADRANT
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. FROM 04N TO 08N BETWEEN 102W
AND 112W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND NW
SWELL.

.S OF A LINE FROM 02S120W TO 03.4S105W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED SE AND SW SWELL.
.24 HOUR FORECAST S OF A LINE FROM 00N120W TO 03.4S95W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN S TO SW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.36 HOUR FORECAST N OF 28N BETWEEN 131W AND 137W WINDS 20 KT OR
LESS. SEAS 8 FT IN A BROAD MIX OF SWELL.
.48 HOUR FORECAST N OF 24N W OF 130W NE WINDS 20 TO 25 KT. SEAS
8 TO 9 FT IN A BROAD MIX OF SWELL.

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

CONVECTION VALID 2100 UTC WED AUG 20...

.TROPICAL STORM KARINA...SCATTERED MODERATE TO STRONG WITHIN
90 NM OF CENTER...AND WITHIN 150 NM SE OF A LINE FROM 15N137W TO
12N140W.

.TROPICAL STORM LOWELL...NUMEROUS MODERATE SCATTERED STRONG
WITHIN 150 NM N AND 240 NM S SEMICIRCLES.

.TROPICAL WAVE FROM LOW PRES NEAR 09.5N94W 1008 MB TO 16N95W...
SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM SE SEMICIRCLE
...N OF 09N E OF TROPICAL WAVE TO CENTRAL AMERICA...AND FROM 04N
TO 14N W OF TROPICAL WAVE TO 100W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 07N77W TO LOW PRES NEAR
09.5N94W TO 06N103W TO 10N114W. NO ITCZ AXIS E OF 140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM S OF AXIS E OF
81W AND BETWEEN 82W AND 86W...WITHIN 180 NM S OF AXIS BETWEEN
95W AND 103W...AND FROM 04N TO 09N BETWEEN 104W AND 107W.
SCATTERED MODERATE FROM 12N TO 15N BETWEEN 111W AND 114W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.


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