000
FZNT24 KNHC 181456
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO NWS NATIONAL 
HURRICANE CENTER MIAMI FL
1030 AM CDT THU AUG 18 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. 

GMZ089-182130-
SYNOPSIS FOR THE GULF OF MEXICO
1030 AM CDT THU AUG 18 2011

.SYNOPSIS...A WEAK RIDGE WILL PREVAIL OVER THE NORTHERN WATERS 
THROUGH MON. A WEAKENING LOW PRES SYSTEM...POSSIBLY A TROPICAL 
CYCLONE...WILL PASS INLAND S OF THE BAY OF CAMPECHE EARLY NEXT 
WEEK.

$$
GMZ080-182130-
NW GULF N OF 25N W OF 90W 
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY
1030 AM CDT THU AUG 18 2011

.THIS AFTERNOON THROUGH FRI NIGHT...VARIABLE WINDS 5 TO 10 KT.
SEAS 1 TO 2 FT. ISOLATED TSTMS CENTRAL PART.
.SAT...E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
.SUN...E TO SE WINDS 10 KT. SEAS 2 FT.
.MON...E WINDS 5 TO 10 KT. SEAS 1 TO 2 FT. 

$$
GMZ082-182130-
SW GULF S OF 25N W OF 90W  
1030 AM CDT THU AUG 18 2011

.THIS AFTERNOON THROUGH FRI NIGHT...VARIABLE WINDS 5 TO 10 KT 
EXCEPT NE 15 KT NEAR YUCATAN PENINSULA DURING THE EVENINGS. SEAS 
1 TO 2 FT.
.SAT AND SUN...E OF 95W NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. W 
OF 95W E TO SE WINDS 10 KT. SEAS 1 TO 2 FT. SCATTERED SHOWERS 
AND TSTMS S OF 22N.
.MON...E WINDS 10 KT. SEAS 2 TO 3 FT. 

$$
GMZ084-182130-
MIDDLE GULF BETWEEN 85W AND 90W 
1030 AM CDT THU AUG 18 2011

.THIS AFTERNOON...N TO NE WINDS 5 TO 10 KT. SEAS 1 TO 2 FT. 
ISOLATED SHOWERS AND TSTMS S OF 24N. ISOLATED TSTMS.
.TONIGHT...E TO SE WINDS 10 KT. SEAS 1 TO 2 FT.
.FRI THROUGH SAT...N OF 25N VARIABLE WINDS 5 TO 10 KT. SEAS 1 
FT. S OF 25N NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SCATTERED SHOWERS AND TSTMS FAR S PORTION SAT.
.SUN...N OF 25N E WINDS 5 TO 10 KT. SEAS 1 TO 2 FT. SCATTERED 
SHOWERS S OF 23N.
.MON...VARIABLE WINDS 5 TO 10 KT. SEAS 1 TO 2 FT. 

$$
GMZ086-182130-
E GULF BETWEEN 81W AND 85W 
1030 AM CDT THU AUG 18 2011

.THIS AFTERNOON THROUGH FRI NIGHT...N OF 27N VARIABLE WINDS 5 TO
10 KT. SEAS 1 FT. S OF 27N E TO SE WINDS 5 TO 10 KT. SEAS 1 TO 2 
FT.
.SAT...E TO SE WINDS 5 TO 10 KT. SEAS 1 TO 3 FT.
.SUN AND MON...N OF 26N VARIABLE WINDS 5 TO 10 KT. SEAS 1 TO 2 
FT. S OF 26N E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. 

$$
FORECASTER NELSON