000
FZNT24 KNHC 210919
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
430 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.

GMZ089-211530-
SYNOPSIS FOR THE GULF OF MEXICO
430 AM CDT TUE APR 21 2009

.SYNOPSIS...A COLD FRONT FROM TAMPA BAY TO YUCATAN PENINSULA 
MOVES SE OF THE AREA TODAY FOLLOWED BY HIGH PRES SHIFTING 
EASTWARD ACROSS GULF THROUGH FRI. SOUTHERLY RETURN FLOW 
INCREASES ALL GULF WATERS FRI.

$$
GMZ080-211530-
NW GULF N OF 25N W OF 90W
INCLUDING FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
430 AM CDT TUE APR 21 2009

.TODAY 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 TO SW 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.

$$
GMZ082-211530-
SW GULF S OF 25N W OF 90W
430 AM CDT TUE APR 21 2009

.TODAY...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 5 TO 7 FT FRI NIGHT.

$$
GMZ084-211530-
MIDDLE GULF BETWEEN 85W AND 90W
430 AM CDT TUE APR 21 2009

.TODAY THROUGH WED NIGHT...N OF 25N NW TO N WINDS 10 KT OR LESS. 
SEAS 1 TO 3 FT. S OF 25N N TO NE WINDS 10 TO 15 KT. SEAS 2 TO 4 
FT.
.THU THROUGH SAT...N OF 27N E TO SE WINDS 10 TO 15 KT. SEAS 1 TO 
3 FT BUILDING TO 3 TO 5 FT FRI. S OF 25N E TO SE WINDS 15 TO 20 
KT. SEAS 5 TO 8 FT. 

$$
GMZ086-211530-
E GULF BETWEEN 81W AND 85W
430 AM CDT TUE APR 21 2009

.TODAY 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 
NE TO E 10 TO 15 KT FRI. SEAS 2 TO 3 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 FRI 
NIGHT. 

$$
FORECASTER COHEN