000
FZNT24 KNHC 210931
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS NATIONAL HURRICANE CENTER MIAMI FL
430 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. 

GMZ089-211530-
SYNOPSIS FOR THE GULF OF MEXICO 
430 AM CDT SUN AUG 21 2011

.SYNOPSIS...TROPICAL DEPRESSION HARVEY INLAND NEAR 16.0N 60.4W 
AT 0900 UTC MOVING WNW OR 290 AT 19 KT. HARVEY WILL WEAKEN 
FURTHER AND DISSIPATE TONIGHT. THE PATH OF HARVEY WILL ALLOW 
WINDS TO INCREASE IN THE SOUTHERN BAY OF CAMPECHE TODAY. A WEAK 
RIDGE ELSEWHERE THROUGH FORECAST PERIOD. TROPICAL STORM IRENE 
WAS CENTERED NEAR 16.4N 61.3W AT 0900 UTC AND WAS MOVING W OR 
280 DEG AT 18 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. 
IRENE IS FORECAST TO MOVE THROUGH CARIBBEAN TO THE STRAITS OF 
FLORIDA NEAR 24.5N 80.5W BY THU. WINDS AND SEAS WILL INCREASE E 
GULF THU.    

$$
GMZ080-211530-
NW GULF N OF 25N W OF 90W 
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY
430 AM CDT SUN AUG 21 2011

.TODAY THROUGH MON NIGHT...E TO SE WINDS 5 TO 10 KT. SEAS 2 FT.
.TUE AND WED...N TO NE WINDS 5 TO 10 KT...EXCEPT VARIABLE N 
OF 28N. SEAS 1 TO 2 FT.  
.THU...N TO NE WINDS 5 TO 10 KT. SEAS 1 TO 2 FT. 

$$
GMZ082-211530-
SW GULF S OF 25N W OF 90W  
430 AM CDT SUN AUG 21 2011

.TODAY AND TONIGHT...N OF 22N E TO SE WINDS 10 TO 15 KT. SEAS 2 
TO 4 FT. S OF 22N N TO NE WINDS 15 TO 20 KT...BECOMING E TO SE 
20 TO 25 KT E OF 93W. SEAS 4 TO 6 FT. SCATTERED TSTMS S OF 21N. 
.MON AND MON NIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
.TUE AND WED...E TO SE WINDS 5 TO 10 KT BECOMING NE 10 TO 15 KT 
DURING EVENINGS ALONG COAST OF YUCATAN. SEAS 2 TO 3 FT. 
.THU...N TO NE WINDS 5 TO 10 KT...EXCEPT 10 TO 15 KT E OF 92W. 
SEAS 2 TO 3 FT. 

$$
GMZ084-211530-
MIDDLE GULF BETWEEN 85W AND 90W 
430 AM CDT SUN AUG 21 2011

.TODAY AND TONIGHT...N OF 27N NE TO E WINDS 5 TO 10 KT. SEAS 2 
FT. S OF 25N E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. 
SCATTERED TSTMS NEAR YUCATAN CHANNEL.
.MON THROUGH WED...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. 
.THU...N OF 27N NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. S OF 
27N N TO NE WINDS 10 TO 15 KT...INCREASING 15 TO 20 KT LATE.
SEAS 3 TO 4 FT...BUILDING 4 TO 7 FT LATE. SCATTERED TSTMS 
DEVELOPING LATE.

$$
GMZ086-211530-
E GULF BETWEEN 81W AND 85W 
430 AM CDT SUN AUG 21 2011

.TODAY AND TONIGHT...N OF 28N VARIABLE SE WINDS 5 TO 10 KT. SEAS 
1 FT. S OF 28N E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. 
.MON THROUGH TUE...N TO NE WINDS 5 TO 10 KT. SEAS 1 TO 2 FT. 
SCATTERED SHOWERS S OF 25N.
.WED...N OF 26N NE TO E WINDS 10 KT. SEAS 1 TO 2 FT. S OF 26N NE 
TO E WINDS 10 TO 15 KT...INCREASING TO 15 TO 20 KT STRAITS OF 
FLORIDA. SEAS 2 TO 4 FT...BUILDING 3 TO 5 FT. SCATTERED TSTMS S 
OF 25N.
.THU...N OF 27N NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. S OF 27N N 
TO NE WINDS 20 TO 25 KT...INCREASING 20 TO 30 KT STRAITS OF 
FLORIDA. SEAS 4 TO 7 FT...BUILDING 7 TO 10 FT. SCATTERED TSTMS.

$$
FORECASTER CHRISTENSEN