000
FZNT24 KNHC 131521
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT WED APR 13 2011

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. 

GMZ089-132130-
SYNOPSIS FOR THE GULF OF MEXICO 
1030 AM CDT WED APR 13 2011

.SYNOPSIS...COLD FRONT MOVE INTO STRAITS OF FLORIDA TODAY AND 
DISSIPATE TONIGHT.  W PORTION OF FRONT PERSIST OVER E BAY OF 
CAMPECHE THROUGH EARLY THU.  HIGH PRES BUILD IN WAKE OF FRONT 
WITH SE RETURN FLOW OVER NW GULF TODAY SPREADING E ACROSS ENTIRE 
AREA BY THU.  SECOND COLD FRONT MOVE OFFSHORE TEXAS LATE FRI... 
EXTEND FROM FLORIDA BIG BEND TO BAY OF CAMPECHE SAT...AND 
DISSIPATE OVER SE WATERS SUN.

$$
GMZ080-132130-
NW GULF N OF 25N W OF 90W
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
1030 AM CDT WED APR 13 2011

.THIS AFTERNOON THROUGH THU NIGHT...SE WINDS 15 KT. SEAS 4 TO 5 
FT.
.FRI...S TO SW WINDS 15 TO 20 KT SHIFTING NE BEHIND FRONT. 
SEAS 3 TO 6 FT.
.SAT AND SUN...NE TO E WINDS 15 KT BECOMING SE 15 TO 20 KT LATE 
SUN. SEAS 3 TO 5 FT.

$$
GMZ082-132130-
SW GULF S OF 25N W OF 90W 
1030 AM CDT WED APR 13 2011

.THIS AFTERNOON THROUGH THU NIGHT...E TO SE WINDS 10 TO 15 KT 
INCREASING TO 20 KT THU. SEAS 3 TO 5 FT.
.FRI THROUGH SUN...NW OF FRONT NE WINDS 15 KT. SEAS 3 TO 5 FT. 
SE OF FRONT SE WINDS 10 KT. SEAS 2 TO 3 FT.

$$
GMZ084-132130-
MIDDLE GULF BETWEEN 85W AND 90W   
1030 AM CDT WED APR 13 2011

.THIS AFTERNOON AND TONIGHT...N OF 25N NE TO E WINDS 10 KT 
SHIFTING SE TONIGHT. SEAS 2 TO 3 FT. S OF 25N E TO SE 10 KT OR 
LESS. SEAS 1 TO 2 FT.   
.THU THROUGH FRI...SE WINDS 10 TO 15 KT BECOMING S TO SE 20 KT 
FRI. SEAS 3 TO 4 FT BUILD TO 6 FT FRI.
.SAT...N OF 25N S TO SW WINDS 15 KT SHIFTING NW BEHIND FRONT. 
SEAS 3 TO 5 FT. S OF 25N SE TO S WINDS 10 KT. SEAS 2 TO 3 FT.
.SUN...N OF 25N NE WINDS 10 KT SHIFTING SE LATE. SEAS 3 FT.
S OF 25N E TO SE WINDS 5 TO 10 KT. SEAS 2 FT.

$$
GMZ086-132130-
E GULF BETWEEN 81W AND 85W
1030 AM CDT WED APR 13 2011

.THIS AFTERNOON AND TONIGHT...NE WINDS 5 TO 10 KT. SEAS 1 FT.
.THU AND THU NIGHT...NE TO E WINDS 5 TO 10 KT. SEAS 1 TO 2 FT.
.FRI AND SAT...SE TO S WINDS 10 KT BECOMING SW 10 TO 15 KT AHEAD 
OF FRONT THEN SHIFTING NW SAT BEHIND FRONT. SEAS 2 TO 4 FT. 
.SUN...NE WINDS 5 TO 10 KT. SEAS 1 FT.

$$
FORECASTER WALLY BARNES