000
FZNT24 KNHC 211526
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT WED APR 21 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. 

GMZ089-212130-
SYNOPSIS FOR THE GULF OF MEXICO
1030 AM CDT WED APR 21 2010

.SYNOPSIS...WEAK TROUGH OVER THE NE GULF FROM THE FLORIDA 
PANHANDLE TO 28N86W WILL DISSIPATE THIS AFTERNOON AS HIGH PRES 
EXTENDS A RIDGE INTO THE GULF FROM THE ATLC. SOUTHERLY RETURN 
FLOW INCREASES IN THE W GULF THU THROUGH FRI AHEAD OF A COLD 
FRONT THAT WILL MOVE OFF THE TEXAS COAST LATE FRI NIGHT. THE 
FRONT WILL EXTEND FROM S CENTRAL LOUISIANA TO THE BAY OF 
CAMPECHE SAT EVENING...THEN STALL OUT AND WEAKEN INTO A TROUGH 
SUN.

$$
GMZ080-212130-
NW GULF N OF 25N W OF 90W   
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
1030 AM CDT WED APR 21 2010

.THIS AFTERNOON...E TO SE WINDS 5 TO 10 KT. SEAS 1 TO 2 FT.
.TONIGHT...SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
.THU...SE WINDS 10 TO 15 KT INCREASING TO 15 TO 20 KT LATE. SEAS 
2 TO 4 FT.
.THU NIGHT...SE WINDS 15 TO 20 KT...EXCEPT FAR WEST PART TO 25 
KT. SEAS BUILDING TO 4 TO 7 FT.
.FRI...SE TO S WINDS 15 TO 20 KT SHIFTING TO NW BEHIND FRONT 
LATE. SEAS 5 TO 7 FT BUILDING TO 7 TO 10 FT LATE. SCATTERED 
SHOWERS AND ISOLATED TSTMS ALONG AND AHEAD OF FRONT.
.SAT...E OF FRONT S TO SW WINDS 20 TO 25 KT DIMINISHING TO 15 TO 
20 KT LATE. SEAS 6 TO 9 FT SUBSIDING TO 5 TO 7 FT LATE. W OF 
FRONT NW TO N WINDS 15 TO 20 KT BECOMING VARIABLE 5 TO 10 KT 
LATE. SEAS 4 TO 7 FT. SCATTERED SHOWERS AND ISOLATED TSTMS ALONG 
AND AHEAD OF FRONT.
.SUN...VARIABLE WINDS 5 TO 10 KT. SEAS 4 TO 6 FT IN SE SWELL.

$$
GMZ082-212130-
SW GULF S OF 25N W OF 90W
1030 AM CDT WED APR 21 2010

.THIS AFTERNOON...E TO SE WINDS 5 TO 10 KT...EXCEPT W OF 94W NE 
TO E WINDS 10 KT OR LESS. SEAS 1 TO 3 FT THROUGHOUT.
.TONIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
.THU AND THU NIGHT...E TO SE WINDS 10 TO 15 KT INCREASING TO 15 
TO 20 KT THU NIGHT...EXCEPT NE 15 TO 20 KT NEAR COAST OF YUCATAN 
DURING THE EVENING. SEAS 2 TO 4 FT BUILDING TO 3 TO 5 FT N OF 
21N THU NIGHT.
.FRI...SE TO S WINDS 15 TO 20 KT INCREASING TO 20 TO 25 KT 
N OF 21N LATE...EXCEPT NE 20 KT NEAR COAST OF YUCATAN DURING THE 
EVENING. SEAS 4 TO 6 FT N OF 21N BUILDING TO 5 TO 7 FT LATE... 
AND 2 TO 4 FT S OF 21N BUILDING TO 3 TO 5 FT LATE. SCATTERED 
SHOWERS AND ISOLATED TSTMS FAR NW PART LATE.
.SAT...E OF FRONT SE TO S WINDS 15 TO 20 KT BECOMING VARIABLE 5 
TO 10 KT LATE. SEAS 5 TO 7 FT N OF 21N SUBSIDING TO 3 TO 5 FT 
LATE...AND 3 TO 5 FT S OF 21N SUBSIDING TO 2 TO 3 FT LATE. W OF 
FRONT N TO NE WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT LATE.
SEAS 4 TO 7 FT SUBSIDING TO 3 TO 5 FT LATE. SCATTERED SHOWERS 
AND ISOLATED TSTMS ALONG AND AHEAD OF FRONT.
.SUN...E OF FRONT S TO SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. W 
OF FRONT VARIABLE WINDS 5 TO 10 KT BECOMING NE TO E LATE. SEAS 2 
TO 3 FT. SCATTERED SHOWERS ALONG FRONT.
 
$$
GMZ084-212130-
MIDDLE GULF BETWEEN 85W AND 90W  
1030 AM CDT WED APR 21 2010

.THIS AFTERNOON AND TONIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING 
E TO SE TONIGHT. SEAS 2 FT OR LESS.
.THU AND THU NIGHT...SE WINDS 10 TO 15 KT INCREASING TO 15 TO 20
KT THU NIGHT...EXCEPT NE 15 KT NEAR COAST OF YUCATAN DURING THE 
EVENING. SEAS 1 TO 3 FT BUILDING 3 TO 5 FT LATE.
.FRI...SE TO S WINDS 15 TO 20 KT INCREASING TO 20 TO 25 KT W OF 
88W LATE...EXCEPT NE 20 KT NEAR COAST OF YUCATAN DURING THE 
EVENING. SEAS 3 TO 5 FT BUILDING TO 4 TO 7 FT LATE.
.SAT...S TO SW WINDS 20 KT EXCEPT NE NEAR COAST OF YUCATAN 
DURING THE EVENING. SEAS 6 TO 9 FT N OF 26N SUBSIDING TO 5 TO 7 
FT LATE...AND 4 TO 7 FT S OF 26N. SCATTERED SHOWERS FAR NW PART 
LATE.
.SUN...E OF FRONT S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. W 
OF FRONT W TO NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. SCATTERED 
SHOWERS AND ISOLATED TSTMS ALONG AND AHEAD OF FRONT.

$$
GMZ086-212130-
E GULF BETWEEN 81W AND 85W       
1030 AM CDT WED APR 21 2010

.THIS AFTERNOON AND TONIGHT...VARIABLE WINDS 5 TO 10 KT BECOMING 
NE TO E TONIGHT. SEAS 2 FT OR LESS.
.THU AND THU NIGHT...E TO SE WINDS 5 TO 10 KT INCREASING TO 10 
TO 15 KT LATE...EXCEPT NE 10 TO 15 KT S OF 24N DURING THE 
EVENING. SEAS 2 FT OR LESS.
.FRI...E TO SE WINDS 10 TO 15 KT EXCEPT NE WINDS S OF 24N DURING 
THE EVENING. SEAS 1 TO 3 FT BUILDING TO 2 TO 4 FT LATE.
.SAT...SE TO S WINDS 15 TO 20 KT. SEAS 2 TO 4 FT BUILDING TO 3 
TO 5 FT.
.SUN...S TO SW WINDS 15 TO 20 KT DIMINISHING TO 10 TO 15 KT 
LATE. SEAS 3 TO 5 FT SUBSIDING TO 2 TO 4 FT LATE. SCATTERED 
SHOWERS FAR N PART LATE.

$$
FORECASTER MUSONDA/STRIPLING