000
FZNT24 KNHC 181437
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT SUN JUL 18 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. 

GMZ089-182130-
SYNOPSIS FOR THE GULF OF MEXICO
1030 AM CDT SUN JUL 18 2010

.SYNOPSIS...A TROUGH IN THE FAR SW GULF WILL LINGER THROUGH THE 
PERIOD. A RIDGE ALONG 30N WILL REMAIN NEARLY STATIONARY THROUGH 
THU. A TROUGH WILL MOVE INTO THE E GULF MON AND INTO THE MIDDLE 
GULF TUE THEN THE W GULF WED. ANOTHER TROUGH MAY ENTER THE SE 
GULF THU.
 
$$
GMZ080-182130-
NW GULF N OF 25N W OF 90W 
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 
1030 AM CDT SUN JUL 18 2010

.THIS AFTERNOON THROUGH MON NIGHT...E TO SE WINDS 5 TO 10 KT 
BECOMING E TO SE TONIGHT...THEN INCREASING TO 10 TO 15 KT W OF 
94W MON AND MON NIGHT. SEAS 1 TO 2 FT BUILDING TO 2 TO 4 FT W OF 
94W MON AND MON NIGHT.
.TUE THROUGH THU...E TO SE WINDS 10 TO 15 KT DIMINISHING TO 5 TO 
10 KT WED...THEN INCREASING TO 10 TO 15 KT THU. SEAS 2 TO 4 FT. 
SCATTERED SHOWERS AND TSTMS NEAR TROUGH WED.

$$
GMZ082-182130-
SW GULF S OF 25N W OF 90W
1030 AM CDT SUN JUL 18 2010

.THIS AFTERNOON THROUGH TUE...E TO SE WINDS 10 TO 15 KT EXCEPT NE
15 KT NEAR YUCATAN COAST DURING THE EVENINGS...AND EXCEPT 
VARIABLE 5 TO 10 KT W OF TROUGH. SEAS 1 TO 3 FT BUILDING TO 2 TO 
4 FT MON THROUGH TUE.
.WED AND THU...E OF TROUGH E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 
4 FT. W OF TROUGH NE TO E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT IN E 
SWELL. SCATTERED SHOWERS AND TSTMS NEAR TROUGH.

$$
GMZ084-182130-
MIDDLE GULF BETWEEN 85W AND 90W 
1030 AM CDT SUN JUL 18 2010

.THIS AFTERNOON THROUGH MON NIGHT...S OF 26N NE TO E WINDS 10 TO
15 KT BECOMING E TO SE MON NIGHT. SEAS 3 TO 5 FT. N OF 26N SE TO 
S WINDS 5 TO 10 KT BECOMING E TO SE 10 TO 15 KT MON AND MON 
NIGHT. SEAS 2 TO 3 FT BUILDING TO 3 TO 5 FT IN SE SWELL MON 
NIGHT. SCATTERED SHOWERS AND TSTMS MON AND MON NIGHT S OF 28N.
.TUE...S OF 26N E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. N OF 
26N E TO SE WINDS 10 TO 15 KT INCREASING TO 15 TO 20 KT LATE. 
SEAS 3 TO 5 FT BUILDING TO 4 TO 6 FT LATE. SCATTERED SHOWERS AND 
TSTMS.
.WED...S OF 26N E TO SE WINDS 10 TO 15 KT INCREASING TO 15 TO 20 
KT NE PORTION LATE. SEAS 3 TO 5 FT BUILDING TO 4 TO 6 FT NE 
PORTION LATE. N OF 26N SE WINDS 10 TO 15 KT INCREASING TO 15 TO 
20 KT SE PORTION LATE. SEAS 3 TO 5 FT BUILDING TO 4 TO 6 FT SE 
PORTION LATE. SCATTERED SHOWERS AND TSTMS.
.THU...S OF 24N NE TO E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT IN NE 
SWELL. FROM 24N TO 28N NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT 
IN E SWELL. N OF 28N E TO SE WINDS 10 TO 15 KT DIMINISHING TO 5 
TO 10 KT LATE. SEAS 3 TO 5 FT IN SE SWELL. SCATTERED SHOWERS AND 
TSTMS S OF 28N.

$$
GMZ086-182130-
E GULF BETWEEN 81W AND 85W  
1030 AM CDT SUN JUL 18 2010

.THIS AFTERNOON THROUGH TUE...S OF 26N E TO SE WINDS 15 TO 20 KT.
SEAS 4 TO 6 FT EXCEPT 5 TO 8 FT IN THE STRAITS OF FLORIDA. N OF 
26N E TO SE WINDS 10 TO 15 KT INCREASING TO 15 TO 20 KT MON 
NIGHT AND TUE. SEAS 1 TO 3 FT BUILDING TO 3 TO 5 FT MON NIGHT 
AND TUE. SCATTERED SHOWERS AND TSTMS.
.WED AND THU...S OF 26N E TO SE WINDS 15 TO 20 KT EXCEPT TO 25 
KT IN THE STRAITS OF FLORIDA...BECOMING NE TO E THROUGHOUT THU. 
SEAS 5 TO 7 FT EXCEPT 7 TO 9 FT IN THE STRAITS OF FLORIDA. N OF 
26N E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT IN SE SWELL. 
SCATTERED SHOWERS AND TSTMS S OF 27N.

$$
FORECASTER LEWITSKY