000
FZNT24 KNHC 170242
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 PM CDT THU SEP 16 2010

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO

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. 

GMZ089-170330-
SYNOPSIS FOR THE GULF OF MEXICO
1030 PM CDT THU SEP 16 2010

.SYNOPSIS...HURRICANE KARL NEAR 19.7N 94.5W 968 MB AT 1000 PM 
CDT MOVING W OR 270 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 85 KT 
GUSTS 105 KT. KARL IS EXPECTED TO STRENGTHEN TO 100 KT GUSTS 120 
KT REACHING NEAR 19.7N 95.6W AROUND SUNRISE FRI...THEN MAKE 
LANDFALL NEAR 19.7N 96.8W AROUND SUNSET FRI. HIGH PRES WILL 
BUILD ACROSS THE GULF IN THE WAKE OF KARL.  

$$
GMZ080-170330-
NW GULF N OF 25N W OF 90W 
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
1030 PM CDT THU SEP 16 2010

.TONIGHT...NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.FRI THROUGH SAT NIGHT...NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 
FT BUILDING TO 5 TO 8 FT BY FRI NIGHT.
.SUN AND MON...E WINDS 15 KT. SEAS 4 TO 6 FT.
.TUE...E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.

$$
GMZ082-170330-
SW GULF S OF 25N W OF 90W
1030 PM CDT THU SEP 16 2010

...HURRICANE WARNING S OF 22N W OF 91W...

.TONIGHT THROUGH FRI NIGHT...HURRICANE AND TROPICAL STORM FORCE
WINDS WITHIN 90 NM N AND 70 NM S SEMICIRCLES OF CENTER OF KARL. 
HIGHEST WINDS 85 KT GUSTS TO 105 KT INCREASING TO 100 KT GUSTS 
120 KT EARLY FRI MORNING. SEAS 12 FT OR GREATER WITHIN 120 NM N 
AND 60 NM S SEMICIRCLES WITH HIGHEST SEAS 20 FT BUILDING TO 25 
FT PRIOR TO LANDFALL. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20
TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA NE TO E WINDS 15 TO 
20 KT. SEAS 5 TO 7 FT. NUMEROUS SQUALLS WITHIN 120 NM OF CENTER.
.SAT AND SAT NIGHT...W OF 94W WINDS 20 TO 30 KT DIMINISHING TO E 
10 TO 15 KT LATE. SEAS 10 TO 15 FT SUBSIDING TO 5 TO 8 FT LATE. 
E OF 94W NE TO E WINDS 15 TO 20 KT BECOMING E TO SE 10 TO 15 KT 
LATE. SEAS 5 TO 7 FT SUBSIDING TO 3 TO 5 FT LATE.
.SUN...E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.MON AND TUE...N OF 22N E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. S 
OF 22N NE TO E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.

$$
GMZ084-170330-
MIDDLE GULF BETWEEN 85W AND 90W 
1030 PM CDT THU SEP 16 2010

.TONIGHT...E TO SE WINDS 15 KT. SEAS 3 TO 5 FT IN E SWELL.
.FRI AND FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SAT THROUGH TUE...NE TO E WINDS 15 KT. SEAS 4 TO 6 FT.

$$
GMZ086-170330-
E GULF BETWEEN 81W AND 85W
1030 PM CDT THU SEP 16 2010

.TONIGHT...E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
.FRI AND FRI NIGHT...E WINDS 15 KT. SEAS 3 TO 5 FT. 
.SAT THROUGH TUE...NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.

$$
FORECASTER NELSON