000
FZNT02 KNHC 200940
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC MON SEP 20 2010

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MON SEP 20.
24 HOUR FORECAST VALID 0600 UTC TUE SEP 21.
48 HOUR FORECAST VALID 0600 UTC WED SEP 22.

.WARNINGS.

...TROPICAL STORM WARNING...
.HURRICANE IGOR NEAR 34.2N 64.4W 957 MB AT 0900 UTC SEP 20 
MOVING NNE OR 025 DEG AT 17 KT. MAXIMUM SUSTAINED WINDS N OF 
AREA 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS OVER FORECAST 
WATERS WITHIN 275 NM SE AND 260 NM SW QUADRANTS. SEAS 12 FT OR 
GREATER OVER FORECAST WATERS WITHIN 600 NM SE QUADRANT...800 NM
SW QUADRANT...AND 530 NM NW QUADRANT WITH SEAS TO 25 FT OVER 
FORECAST WATERS.
.24 HOUR FORECAST WARNING CONDITIONS SHIFTED N OF AREA.

.SYNOPSIS AND FORECAST.

.ATLC EXCEPT AS NOTED IN IGOR WARNING...OVER FORECAST WATERS N 
OF 27N BETWEEN 55W AND 77W WINDS 20 TO 33 KT. SEAS 12 TO 20 FT 
IN MIXED SWELL. FROM 24N TO 27N BETWEEN 55W AND 67W S TO SW 
WINDS 20 TO 30 KT. SEAS 10 TO 16 FT IN MIXED SWELL. ELSEWHERE N 
OF 19N W OF 55W...EXCEPT SW OF BAHAMA CHAIN...WINDS LESS THAN 20 
KT. SEAS 8 TO 14 FT IN MIXED SWELL. N OF 25N BETWEEN 46W AND 55W 
S TO SW WINDS TO 20 KT. SEAS 8 TO 14 FT IN MIXED SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 50W AND 62W SW WINDS 20 TO 25 
KT. SEAS 10 TO 16 FT IN MIXED SWELL. ELSEWHERE NW OF LINE FROM 
31N40W TO 19N68W...EXCEPT SW OF BAHAMA CHAIN...WINDS LESS THAN 
20 KT. SEAS 8 TO 15 FT IN MIXED SWELL...HIGHEST NEAR 31N59W.
.48 HOUR FORECAST NW OF LINE FROM 30N35W TO 20N55W TO 20N70W...
EXCEPT W OF 78W AND ALSO SW OF BAHAMA CHAIN...WINDS LESS THAN 20 
KT. SEAS 8 TO 15 FT IN MIXED SWELL...HIGHEST NEAR 31N60W.

.ATLC LOW PRES E OF AREA NEAR 16N32W 1007 MB. FROM 17N TO 22N E 
OF 39W NE WINDS 20 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 12N TO 25N 
E OF 50W WINDS LESS THAN 20 KT. SEAS 8 TO 9 FT PRIMARILY IN NE 
SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...E OF 
AREA NEAR 17N33W 1007 MB. FROM 18N TO 21N E OF 40W NE WINDS 20 
KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 14N TO 21N E OF 41W WINDS 
LESS THAN 20 KT. SEAS 8 FT PRIMARILY IN NE SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...E OF 
AREA NEAR 17N33W 1007 MB. FROM 15N TO 23N E OF 40W NE WINDS 20 
KT. SEAS 8 TO 10 FT.

.ATLC TROUGH ALONG 55W FROM 09N TO 16N. N OF 12N WITHIN 180 NM E 
OF TROUGH E WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST TROUGH ALONG 60W FROM 10N TO 17N. N OF 14N 
WITHIN 180 NM E OF TROUGH E WINDS 20 KT. SEAS TO 8 FT.
.48 HOUR FORECAST TROUGH W OF AREA IN CARIBBEAN AS DESCRIBED 
BELOW. FROM 14N TO 20N W OF 55W NE TO E WINDS 20 KT. SEAS 8 FT.

.CARIBBEAN 48 HOUR FORECAST TROUGH ALONG 66W. N OF 14N E OF 72W 
E WINDS 20 KT. SEAS TO 8 FT.

.GULF OF MEXICO FROM 24N TO 28N W OF 90W E WINDS 20 KT. SEAS 
LESS THAN 8 FT.
.12 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO 24 HOUR FORECAST FROM 23N TO 27N E OF 90W E 
WINDS 20 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 22N TO 28N E OF 92W E WINDS 20 KT. SEAS 
LESS THAN 8 FT.
 
.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

$$
.FORECASTER LEWITSKY. TROPICAL PREDICTION CENTER.