000
FZNT24 KNHC 121520
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT TUE APR 12 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. 

GMZ089-122130-
SYNOPSIS FOR THE GULF OF MEXICO 
1030 AM CDT TUE APR 12 2011

.SYNOPSIS...COLD FRONT FROM 30N87W TO 19N96W REACH FROM STRAITS 
OF FLORIDA TO NE YUCATAN EARLY TONIGHT AND E OF GULF LATER 
TONIGHT.  HIGH PRES BUILD OVER GULF STATES AND DRIFT E WITH E-SE 
FLOW OVER ALL WATERS THU THEN SHIFTING S THU W OF 90W AHEAD OF 
SECOND COLD FRONT REACHING SE TEXAS COAST FRI.  SECOND FRONT 
EXTEND FROM FT MYERS TO YUCATAN PENINSULA LATE SAT.

$$
GMZ080-122130-
NW GULF N OF 25N W OF 90W
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
1030 AM CDT TUE APR 12 2011

.THIS AFTERNOON...N TO NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. 
.TONIGHT THROUGH THU...E TO SE WINDS 10 KT. SEAS 2 TO 3 FT.
.FRI...SE TO S WINDS 15 KT BECOMING N AT 15 KT BEHIND FRONT. 
SEAS 3 TO 5 FT.
.SAT...NE TO E WINDS 15 KT. SEAS 4 TO 5 FT.

$$
GMZ082-122130-
SW GULF S OF 25N W OF 90W 
1030 AM CDT TUE APR 12 2011

.THIS AFTERNOON AND TONIGHT...W OF FRONT N TO NE WINDS 15 TO 20 
KT. SEAS 4 TO 6 FT. E OF FRONT SE WINDS 10 KT. SEAS 2 TO 3 FT.  
SCATTERED SHOWERS ALONG FRONT. 
.WED THROUGH FRI...E TO SE WINDS 10 TO 15 KT INCREASING TO 20 KT 
FRI. SEAS 3 TO 5 FT.
.SAT...NW OF FRONT NE TO E WINDS 15 KT. SEAS 3 TO 4 FT. SE OF 
FRONT SE WINDS 10 KT. SEAS 2 TO 3 FT.

$$
GMZ084-122130-
MIDDLE GULF BETWEEN 85W AND 90W   
1030 AM CDT TUE APR 12 2011

.THIS AFTERNOON...NW OF FRONT N TO NE WINDS 15 TO 20 KT. SEAS 4 
TO 6 FT. N OF 25N E OF FRONT W WINDS 15 KT. SEAS 2 TO 4 FT. 
S OF 25N SW TO W WINDS 10 KT. SEAS 2 TO 3 FT. SCATTERED SHOWERS 
ALONG FRONT.
.TONIGHT THROUGH WED NIGHT...NE TO E WINDS 10 TO 15 KT. SEAS 2 
TO 4 FT. 
.THU AND FRI...E TO SE WINDS 10 TO 15 KT SHIFTING SW FRI N OF 
25N. SEAS 3 TO 5 FT.
.SAT...N OF 25N S TO SW WINDS 15 KT SHIFTING N BEHIND FRONT. 
SEAS 4 TO 6 FT. S OF 25N SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 4 
FT.

$$
GMZ086-122130-
E GULF BETWEEN 81W AND 85W
1030 AM CDT TUE APR 12 2011

.THIS AFTERNOON AND TONIGHT...N OF 25N SW WINDS 10 TO 15 KT  
SHIFTING N BEHIND FRONT. SEAS 2 TO 3 FT. S OF 25N SE WINDS 10 
KT. SEAS 2 TO 3 FT. SCATTERED SHOWERS ALONG FRONT. 
.WED AND WED NIGHT...NE WINDS 10 KT. SEAS 1 FT.
.THU...E TO SE WINDS 10 KT. SEAS 1 FT.
.FRI AND SAT...SE TO S WINDS 5 TO 10 KT BECOMING SW 10 TO 15 KT 
AHEAD OF FRONT THEN SHIFTING NW BEHIND FRONT. SEAS 1 TO 3 FT. 

$$
FORECASTER WALLY BARNES