High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 200920
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC WED AUG 20.
24 HOUR FORECAST VALID 0600 UTC THU AUG 21.
48 HOUR FORECAST VALID 0600 UTC FRI AUG 22.

...TROPICAL STORM WARNING...
.TROPICAL STORM KARINA NEAR 15.9N 135.9W 1000 MB AT 0900 UTC AUG
20 MOVING W OR 270 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 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 NE...40 NM SE...80 NM SW AND 120 NM NW
QUADRANTS WITH SEAS TO 16 FT. ELSEWHERE WITHIN 180 NM OF CENTER
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM KARINA NEAR 15.5N 136.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM OF CENTER EXCEPT 40 NM NE QUADRANT. SEAS 12
FT OR GREATER WITHIN 90 NM OF CENTER EXCEPT 30 NM NE QUADRANT
WITH SEAS TO 17 FT. ELSEWHERE WITHIN 210 NM OF CENTER WINDS 20
TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM KARINA NEAR 15.3N 135.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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 120 NM OF CENTER WITH
SEAS TO 20 FT. ELSEWHERE WITHIN 240 NM OF CENTER WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL STORM KARINA NEAR 17.0N 132.5W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM KARINA NEAR 20.5N 129.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW KARINA NEAR 25.5N
129.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM LOWELL NEAR 18.7N 121.0W 996 MB AT 0900 UTC AUG
20 MOVING NW OR 305 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE...180
NM SE...150 NM SW AND 110 NM NW QUADRANTS. SEAS 12 FT OR GREATER
WITHIN 240 NM NE...300 NM SE...180 NM SW AND 210 NM NW QUADRANTS
WITH SEAS TO 20 FT. ELSEWHERE WITHIN 300 NM N AND 360 NM S
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF
AREA FROM 10N TO 24N BETWEEN 111W AND 127W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN A BROAD MIX OF SWELL.
.24 HOUR FORECAST TROPICAL STORM LOWELL NEAR 19.8N 121.9W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. LITTLE CHANGE IN
RADIUS OF TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER
WITHIN 300 NM N AND 390 NM S SEMICIRCLES WITH SEAS TO 24 FT.
ELSEWHERE WITHIN 420 NM N AND 480 NM S SEMICIRCLES 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 21.6N 123.6W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 120 NM NE AND SW QUADRANTS...90 NM NW QUADRANT AND
180 NM SE QUADRANT. SEAS 12 FT OR GREATER 300 NM OF CENTER...
EXCEPT 420 NM SE QUADRANT WITH SEAS TO 24 FT. ELSEWHERE WITHIN
420 NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER
OF AREA FROM 08N TO 28N BETWEEN 110W AND 130W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN A BROAD MIX OF SWELL.
.72 HOUR FORECAST TROPICAL STORM LOWELL NEAR 24.0N 126.3W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 26.0N
129.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW LOWELL NEAR 27.0N
131.5W. 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.

.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
10N94W 1008 MB. FROM 12N TO 14N BETWEEN 90W AND 93W E TO SE
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
11N99W 1006 MB. FROM 11N TO 14N BETWEEN 94W AND 101W E TO SE
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

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

CONVECTION VALID 0900 UTC WED AUG 20...

.TROPICAL STORM KARINA...SCATTERED MODERATE TO STRONG WITHIN 120
NM OF CENTER EXCEPT NW QUADRANT.

.TROPICAL STORM LOWELL...SCATTERED MODERATE ISOLATED STRONG
WITHIN 180 NM S SEMICIRCLE.

.TROPICAL WAVE ALONG 95W...SCATTERED MODERATE TO STRONG N OF
14.5N BETWEEN 93W AND 96W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N79W TO 10N87W TO LOW PRES NEAR 08N93W
1008 MB TO 09N110W. SCATTERED MODERATE WITHIN 180 NM EITHER SIDE
OF AXIS BETWEEN 85W AND 110W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.



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