000
FZNT02 KNHC 192108
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL                     
2230 UTC SAT SEP 19 2015

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO.

SYNOPSIS VALID 1800 UTC SAT SEP 19.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 20.
48 HOUR FORECAST VALID 1800 UTC MON SEP 21.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM IDA NEAR 15.6N 40.8W 1006 MB AT 2100 UTC SEP 19 
MOVING WNW OR 300 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 20 NM NW AND SE 
QUADRANTS...30 NM NE QUADRANT AND 0 NM SW QUADRANT.  SEAS 12 FT 
OR GREATER WITHIN 60 NM NW AND SE QUADRANTS...90 NM NE QUADRANT 
AND 0 NM SW QUADRANT WITH SEAS TO 15 FT. ELSEWHERE WITHIN 210 NM 
NE SEMICIRCLE AND 90 NM SW SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT. REMAINDER OF AREA FROM 13N TO 20N E OF 44W WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM IDA NEAR 17.6N 44.5W. MAXIMUM 
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 
WITHIN 40 NM OF CENTER EXCEPT 0 NM SW QUADRANT. SEAS 12 FT OR 
GREATER WITHIN 180 NM NE SEMICIRCLE AND 120 NM SW SEMICIRCLE 
WITH SEAS TO 22 FT. ELSEWHERE WITHIN 300 NM NE SEMICIRCLE AND 
120 NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
REMAINDER OF AREA BOUNDED BY 22N53W TO 22N35W TO 13N44W TO 
22N53W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IDA NEAR 19.9N 47.2W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 50 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM NE SEMICIRCLE 
AND 120 NM SW SEMICIRCLE WITH SEAS TO 26 FT. ELSEWHERE WITHIN 
210 NM NE SEMICIRCLE AND 120 NM SW SEMICIRCLE WINDS 20 TO 33 KT. 
SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 15N TO 25N BETWEEN 43W 
AND 52W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM IDA NEAR 20.5N 48.0W. MAXIMUM 
SUSTAINED WINDS 55 KT GUSTS 65 KT.                        
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM IDA NEAR 20.0N 48.0W. MAXIMUM 
SUSTAINED WINDS 55 KT GUSTS 65 KT.
.120 HOUR FORECAST TROPICAL STORM IDA NEAR 20.5N 47.5W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 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. 

.ATLC LOW PRES...REMNANTS OF TROPICAL DEPRESSION NINE...NEAR 
18.8N 49.9W 1007. WITHIN 180 NM NE QUADRANT WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.12 HOUR FORECAST LOW PRES...REMNANTS OF TROPICAL DEPRESSION 
NINE...DISSIPATED. CONDITIONS MERGE.

.ATLC WITHIN 300 NM E OF A LINE FROM 20N42W TO 26N49W E TO SE 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN AREA 
BOUNDED BY 31N55W TO 31N35W TO 26N40W TO 20N35W TO 20N44W TO 
28N55W TO 31N55W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
NE AND SE SWELL.
.24 HOUR FORECAST FROM 24N TO 28N BETWEEN 45W AND 49W SE WINDS 
20 TO 25 KT. SEAS 9 TO 11 FT IN MIXED NE AND SE SWELL. ELSEWHERE 
FROM 22N TO 30N E OF 51W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN 
MIXED NE AND SE SWELL.
.48 HOUR FORECAST N OF 25N BETWEEN 43W AND 51W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED NE AND SE SWELL.

.ATLC LOW PRES NEAR 30.5N78W. TROUGH FROM LOW TO 27N77W TO 
24N80W. FROM 28N TO 30N BETWEEN 75W AND 77W S TO SW WINDS 20 TO 
25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES WELL N OF AREA. TROUGH FROM 31N74W  
TO 27N76W TO 23N79W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.