000
FZNT02 KNHC 171613
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN SEP 17 2006
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

PAN PAN 

ATLANTIC FROM 7N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO

SYNOPSIS VALID 1200 UTC SUN SEP 17
24 HOUR FORECAST VALID 1200 UTC MON SEP 18
48 HOUR FORECAST VALID 1200 UTC TUE SEP 19

.WARNINGS...
...HURRICANE WARNING...
.HURRICANE HELENE NEAR 20.5N 49.0W 970 MB AT 1500 UTC SEP 17
MOVING NW OR 305 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 90 KT
GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 125 NM NW AND SE
QUADRANTS...150 NM NE QUADRANT AND 90 NM SW QUADRANT. SEAS 12
FT OR GREATER WITHIN 200 NM S SEMICIRCLE...275 NM NE QUADRANT
AND 250 NM NW QUADRANT WITH SEAS TO 37 FT.
.24 HOUR FORECAST HURRICANE HELENE NEAR 22.5N 51.5W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM E SEMICIRCLE...100 NM SW QUADRANT AND 125 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 330 NM N SEMICIRCLE AND
210 NM S SEMICIRCLE WITH SEAS TO 40 FT.
.48 HOUR FORECAST HURRICANE HELENE NEAR 23.5N 54.5W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 175 NM E SEMICIRCLE...100 NM SW QUADRANT AND 150 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 420 NM N AND NE QUADRANTS
...330 NM SE AND NW QUADRANTS AND 210 NM SW QUADRANTS WITH SEAS
TO 38 FT.
.72 HOUR FORECAST HURRICANE HELENE NEAR 24.5N 57.0W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE HELENE NEAR 27.0N 59.0W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.
.120 HOUR FORECAST HURRICANE HELENE NEAR 30.0N 59.5W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.

.SYNOPSIS AND FORECAST.
.ATLC...EXCEPT AS NOTED IN WARNINGS...WITHIN 540 NM NE QUADRANT
...420 NM SW AND NW QUADRANT AND 360 NM SE QUADRANTS WINDS 20 TO 
33 KT SEAS 8 TO 12 FT.
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...WITHIN 540 NM 
NE QUADRANT...480 NM NW QUADRANT AND 360 NM S SEMICIRCLE WINDS
20 TO 33 KT SEAS 8 TO 12 FT.
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...WITHIN 540 
NE QUADRANTS...420 NM NW QUADRANT AND 240 NM S SEMICIRCLE WINDS
20 TO 33 KT SEAS 8 TO 12 FT.

.ATLC N OF 29N BETWEEN 51W AND 54W SW WINDS 20 KT SEAS TO 9 FT.
.12 HOUR FORECAST WINDS LESS THAN 20 KT SEAS TO 8 FT IN NW 
SWELL.
.24 HOUR FORECAST CONDITIONS AS DESCRIBED ABOVE UNDER EXCEPT AS 
NOTED IN WARNINGS PARAGRAPH.

.CARIBBEAN FROM 11N TO 15N BETWEEN 75W AND 80W E WINDS 20 KT SEAS
TO 9 FT. ELSEWHERE S OF 18N W OF 70W NE TO E WINDS TO 20 KT SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST FROM 12N TO 18N BETWEEN 70W AND 81W E WINDS TO
20 KT SEAS TO 8 FT.
.48 HOUR FORECAST FROM 12N TO 15N BETWEEN 71W AND 80W E WINDS TO 
20 KT SEAS TO 8 FT.

.GULF OF MEXICO W OF 94W SE TO S WINDS TO 20 KT SEAS LESS THAN
8 FT.
.24 HOUR FORECAST COLD FRONT OVER E TEXAS. N OF 25N W OF 93W
S TO SW WINDS TO 20 KT SEAS LESS THAN 8 FT. S OF 25N W OF 94W
SE TO S WINDS TO 20 KT SEAS LESS THAN 8 FT. SCATTERED TO NUMEROUS
TSTMS ALONG TEXAS COAST.
.48 HOUR FORECAST COLD FRONT 30N88W 25N98W. NW OF FRONT NE WINDS
WINDS TO 20 KT SEAS LESS THAN. WINDS AND SEAS HIGHER IN SCATTERED
TSTMS ALONG AND NEAR FRONT.

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

$$
FORECASTER AGUIRRE
TROPICAL ANALYSIS AND FORECAST BRANCH
TROPICAL PREDICTION CENTER