000
FZNT24 KNHC 301534
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT THU SEP 30 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. 

GMZ089-302130-
SYNOPSIS FOR THE GULF OF MEXICO
1030 AM CDT THU SEP 30 2010

.SYNOPSIS...HIGH PRES BUILD ACROSS NW GULF AND MOVE E THROUGH 
SAT THEN STATIONARY THROUGH MON.  GENTLE TO MODERATE N BREEZE 
PREVAIL THROUGH SAT THEN INCREASE TO FRESH BREEZE SUN.  BREEZE 
BECOME STRONG NE MON AS LOW PRES OVER NW CARIBBEAN TIGHTENS PRES 
GRADIENT OVER E GULF ZONE.

$$
GMZ080-302130-
NW GULF N OF 25N W OF 90W 
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
1030 AM CDT THU SEP 30 2010

.THIS AFTERNOON AND TONIGHT...N WINDS 10 TO 15 KT. SEAS 2 TO 4 
FT.
.FRI AND FRI NIGHT...N TO NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
.SAT AND SUN...N TO NE WINDS 15 KT INCREASE TO 20 KT SUN. SEAS 4 
TO 6 FT BUILD TO 8 FT E OF 95W SUN.
.MON...NE WINDS 15 TO 20 KT. SEAS 5 TO 8 FT E OF 93W AND 4 TO 6 
FT W OF 93W.

$$
GMZ082-302130-
SW GULF S OF 25N W OF 90W
1030 AM CDT THU SEP 30 2010

.THIS AFTERNOON AND TONIGHT...N WINDS 10 TO 15 KT. SEAS 2 TO 4 
FT.
.FRI AND FRI NIGHT...N WINDS 15 KT. SEAS 3 TO 5 FT.
.SAT AND SUN...N TO NE WINDS 15 KT INCREASE TO 20 KT SUN. SEAS 4 
TO 6 FT BUILD TO 8 FT E OF 95W.
.MON...N TO NE WINDS 15 TO 20 KT BECOME N 20 TO 25 KT FAR SW 
PORTION LATE. SEAS 6 TO 8 FT.

$$
GMZ084-302130-
MIDDLE GULF BETWEEN 85W AND 90W 
1030 AM CDT THU SEP 30 2010

.THIS AFTERNOON AND TONIGHT...NW TO N WINDS 15 KT. SEAS 3 TO 5 
FT.
.FRI AND FRI NIGHT...N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
.SAT...N OF 25N N TO NE WINDS 10 TO 15 KT INCREASE TO 20 KT 
LATE. SEAS 4 TO 6 FT BUILD TO 8 FT LATE. S OF 25N N WINDS 10 TO 
15 KT. SEAS 3 TO 5 FT. 
.SUN...N OF 25N NE WINDS 20 KT. SEAS 6 TO 8 FT. S OF OF 25N N TO 
NE WINDS 10 TO 15 KT INCREASE TO 20 KT LATE. SEAS 4 TO 6 FT 
BUILD TO 7 FT LATE.
.MON...NE WINDS 20 TO 25 KT. SEAS 7 TO 10 FT.

$$
GMZ086-302130-
E GULF BETWEEN 81W AND 85W
1030 AM CDT THU SEP 30 2010

.THIS AFTERNOON AND TONIGHT...NW TO N WINDS 15 KT DIMINISH TO 10 
KT TONIGHT. SEAS 3 TO 5 FT SUBSIDE TO 2 FT. 
.FRI AND FRI NIGHT...N WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
.SAT...N WINDS 10 TO 15 KT BECOME NE 20 KT N OF 27N LATE. SEAS 2 
TO 4 FT BUILD TO 6 FT LATE.
.SUN...N OF 25N N TO NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT BUILD 
TO 7 FT LATE. S OF 25N N TO NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
.MON...NE WINDS 20 KT INCREASE TO 25 KT LATE. SEAS 5 TO 7 FT 
BUILD TO 10 FT LATE.

$$
FORECASTER WALLY BARNES