000
FZNT24 KNHC 211457
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT SUN AUG 21 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. 

GMZ089-212130-
SYNOPSIS FOR THE GULF OF MEXICO 
1030 AM CDT SUN AUG 21 2011

.SYNOPSIS...A SURFACE RIDGE WILL MEANDER OVER THE NORTHERN 
WATERS THROUGH THE PERIOD. A TROUGH EXTENDING N FROM THE 
REMNANTS OF HARVEY TO 23N93W WILL DRIFT W AND GRADUALLY 
DISSIPATE THROUGH TUE. TROPICAL STORM IRENE CURRENTLY OVER THE 
NE CARIBBEAN IS EXPECTED TO MOVE NW INCREASING WINDS AND SEAS IN 
THE FLORIDA STRAITS WED...WITH TROPICAL STORM AND HURRICANE 
CONDITIONS SPREADING NW OVER THE WATERS S OF 26N E OF 83W ON THU.

$$
GMZ080-212130-
NW GULF N OF 25N W OF 90W 
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY
1030 AM CDT SUN AUG 21 2011

.THIS AFTERNOON THROUGH MON...N OF 28N VARIABLE WINDS 5 TO 
10 KT. SEAS 1 TO 2 FT. S OF 28N E TO SE WINDS 5 TO 10 KT. SEAS 2 
TO 3 FT IN SE SWELL.
.MON NIGHT THROUGH THU...VARIABLE WINDS 5 TO 10 KT THROUGHOUT. 
SEAS 1 TO 2 FT.
  
$$
GMZ082-212130-
SW GULF S OF 25N W OF 90W  
1030 AM CDT SUN AUG 21 2011

.THIS AFTERNOON THROUGH MON...N OF 23N E TO SE WINDS 10 TO 15 
KT. SEAS 2 TO 4 FT. S OF 23N W OF 93W N TO NE WINDS 10 TO 15 KT. 
SEAS 2 TO 4 FT. S OF 23N E OF 93W E TO SE 15 TO 20 KT. SEAS 4 TO 
6 FT. SCATTERED SHOWERS ISOLATED TSTMS. 
.MON NIGHT...N TO NE WINDS 10 KT. SEAS 2 TO 4 FT IN E SWELL.
.TUE...VARIABLE WINDS 5 TO 10 KT. SEAS 2 FT.
.WED AND THU...NE TO E WINDS 10 KT. SEAS 1 TO 2 FT.

$$
GMZ084-212130-
MIDDLE GULF BETWEEN 85W AND 90W 
1030 AM CDT SUN AUG 21 2011

.THIS AFTERNOON AND TONIGHT...N OF 27N VARIABLE WINDS 5 TO 10 
KT. SEAS 1 TO 2 FT. S OF 27N E TO SE WINDS 10 TO 15 KT. SEAS 2 
TO 4 FT. ISOLATED TSTMS.
.MON AND MON NIGHT...N OF 27N VARIABLE NE WINDS 5 TO 10 KT. SEAS 
1 TO 2 FT. S OF 27N NE TO E WINDS 10 KT. SEAS 2 TO 3 FT. 
.TUE...N OF 28N VARIABLE NE WINDS 5 TO 10 KT. SEAS 1 TO 2 FT. S 
OF 28N NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
.WED...NE TO E WINDS 5 TO 10 KT. SEAS 2 FT OR LESS.
.THU...N TO NE WINDS 10 TO 15 KT INCREASING TO 15 TO 20 KT LATE. 
SEAS 2 TO 3 FT BUILDING 4 TO 7 FT LATE. 

$$
GMZ086-212130-
E GULF BETWEEN 81W AND 85W 
1030 AM CDT SUN AUG 21 2011

...TROPICAL STORM AND HURRICANE CONDITIONS EXPECTED S OF 26N E 
OF 83W THU...

.THIS AFTERNOON AND TONIGHT...N OF 28N VARIABLE WINDS 5 TO 10 
KT. SEAS 1 FT. S OF 28N E WINDS 10 KT. SEAS 1 TO 3 FT. 
.MON THROUGH TUE...N OF 28N VARIABLE WINDS 5 TO 10 KT. SEAS 1 
FT. S OF 28N NE TO E WINDS 10 KT. SEAS 2 TO 3 FT. 
.WED...NE TO E WINDS 10 KT INCREASING TO 15 TO 20 KT WED NIGHT.
SEAS 1 TO 2 FT BUILDING 3 TO 5 FT EXCEPT 5 TO 8 FT FLORIDA 
STRAITS. SCATTERED TSTMS STRAITS OF FLORIDA.
.THU...NE WINDS 20 TO 25 KT INCREASING TO TROPICAL STORM AND 
HURRICANE FORCE OVER WATERS S OF 26N E OF 83W. SEAS 5 TO 8 FT 
EXCEPT BUILDING 9 TO 16 FT IN FLORIDA STRAITS. NUMEROUS TSTMS SE 
PART.

$$
FORECASTER NELSON