000
FZNT24 KNHC 211355
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT TUE APR 21 2009

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.

GMZ089-212130-
SYNOPSIS FOR THE GULF OF MEXICO
1030 AM CDT TUE APR 21 2009

.SYNOPSIS...A COLD FRONT OVER THE SE WATERS WILL MOVE S OF AREA 
BY SUNSET. HIGH PRES WILL SHIFT E ACROSS THE GULF THROUGH THU 
WITH SOUTHERLY RETURN FLOW OVER ENTIRE AREA FRI AND SAT.

$$
GMZ080-212130-
NW GULF N OF 25N W OF 90W
INCLUDING FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
1030 AM CDT TUE APR 21 2009

.THIS AFTERNOON AND TONIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING
SW TO W LATE TONIGHT. SEAS 1 TO 3 FT.
.WED AND WED NIGHT...W OF 95W S WINDS 10 TO 15 KT INCREASING TO 
15 TO 20 KT WED NIGHT. SEAS 3 TO 5 FT. E OF 95W S WINDS 10 KT OR 
LESS. SEAS 1 TO 2 FT.
.THU THROUGH SAT...SE WINDS 15 TO 20 KT. SEAS 3 TO 5 FT BUILDING 
6 TO 8 FT FRI AND 7 TO 9 FT SAT.

$$
GMZ082-212130-
SW GULF S OF 25N W OF 90W
1030 AM CDT TUE APR 21 2009

.THIS AFTERNOON...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.TONIGHT THROUGH WED NIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 2 
TO 4 FT.  
.THU THROUGH SAT...E TO SE WINDS 15 TO 20 KT. SEAS 3 TO 5 FT 
BUILDING 6 TO 8 FT SAT.

$$
GMZ084-212130-
MIDDLE GULF BETWEEN 85W AND 90W
1030 AM CDT TUE APR 21 2009

.THIS AFTERNOON AND TONIGHT...NW TO N WINDS 10 TO 15 KT. SEAS 2 
TO 4 FT.
.WED...N OF 25N W WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. S OF 25N NE 
TO E WINDS 10 TO 15 KT. SEAS 2 TO 5 FT. 
.THU THROUGH SAT...N OF 27N E TO SE WINDS 10 TO 15 KT. SEAS 1 TO 
3 FT BUILDING TO 4 TO 6 FT SAT. S OF 25N E TO SE WINDS 15 TO 20 
KT. SEAS 4 TO 6 FT BUILDING 6 TO 9 FT SAT. 

$$
GMZ086-212130-
E GULF BETWEEN 81W AND 85W
1030 AM CDT TUE APR 21 2009

.THIS AFTERNOON AND TONIGHT...NW TO N WINDS 10 TO 15 KT. SEAS 2 
TO 4 FT. 
.WED AND WED NIGHT...N OF 27N W TO NW WINDS 5 TO 10 KT. SEAS 1 
TO 2 FT. S OF 27N N TO NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. 
.THU THROUGH SAT...N OF 27N VARIABLE WINDS 5 TO 10 KT BECOMING E 
10 TO 15 KT FRI AND SE 15 TO 20 KT SAT. SEAS 2 TO 4 FT. S OF 27N
NE TO E WINDS 15 TO 20 KT INCREASING TO 20 TO 25 KT STRAITS OF 
FLORIDA LATE FRI. SEAS 4 TO 6 FT EXCEPT 6 TO 9 FT STRAITS OF 
FLORIDA SAT. 

$$
FORECASTER NELSON