000
FZNT24 KNHC 181524
OFFNT4

OFFSHORE WATERS FORECAST FOR THE GULF OF MEXICO
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 AM CDT SUN OCT 18 2009

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 OCT 18 2009

.SYNOPSIS...
STRONG HIGH PRES BUILDING ACROSS GULF BEHIND COLD FRONT OVER NW 
CARIBBEAN WEAKEN AND SHIFT E OF AREA THIS AFTERNOON ALLOWING 
WINDS AND SEAS TO DIMINISH.  ANOTHER COLD FRONT EXPECTED TO MOVE 
INTO FAR NW GULF THU.  FRESH S RETURN FLOW DEVELOP IN ADVANCE OF 
NEXT COLD FRONT CROSSING TEXAS WED AND EARLY THU. 
  
$$
GMZ080-182130-
NW GULF N OF 25N W OF 90W 
INCLUDING THE FLOWER GARDEN BANKS NATIONAL MARINE SANCTUARY 430 
1030 AM CDT SAT OCT 17 2009

.THIS AFTERNOON AND TONIGHT...E OF 93W NE WINDS 20 KT. W OF 93W 
NE WINDS 10 TO 15 KT. SEAS ENTIRE AREA SUBSIDE TO 6 FT IN NE 
SWELL S OF 27N AND TO 4 FT N OF 27N.
.MON AND MON NIGHT...E OF 94W NE TO E WINDS 10 TO 15 KT. SEAS 4 
FT IN NE TO E SWELL. W OF 94W E TO SE WINDS 10 KT. SEAS 3 FT. 
.TUE AND WED...E TO SE WINDS 10 KT INCREASE TO 20 KT W OF 94W 
WED. SEAS 5 FT BUILD TO 7 FT W OF 94W WED. SCATTERED SHOWERS AND 
TSTMS NEAR COAST WED.
.THU...SE TO S WINDS 10 TO 15 KT BECOME N 15 TO 20 KT LATE 
BEHIND FRONT. SCATTERED TSTMS ALONG FRONT.

$$
GMZ082-182130-
SW GULF S OF 25N W OF 90W
1030 AM CDT SUN OCT 18 2009

.THIS AFTERNOON AND TONIGHT...E OF 96W NE WINDS 20 TO 25 KT.  
SEAS TO 13 FT IN N SWELL SUBSIDE TO 8 FT TONIGHT. W OF 96W NE 
WINDS DIMINISH TO 15 KT. SEAS SUBSIDE TO 8 FT IN N SWELL.
.MON AND MON NIGHT...E OF 94W N TO NE WINDS DIMINISH TO 15 KT. 
SEAS SUBSIDE TO 5 FT MON NIGHT. W OF 94W NE TO E WINDS DIMINISH 
TO 10 KT. SEAS SUBSIDE TO 5 FT MON NIGHT.
.TUE AND WED...E OF 93W NE TO E WINDS 10 TO 15 KT SHIFT SE WED. 
SEAS SUBSIDE TO 4 FT. W OF 93W E TO SE WINDS 10 TO 15 KT SHIFT S 
WED. SEAS 4 FT.
.THU...SE TO S WINDS 10 TO 15 KT. SEAS 5 FT N OF 21N AND 2 FT S 
OF 21N.

$$
GMZ084-182130-
MIDDLE GULF BETWEEN 85W AND 90W
1030 AM CDT SUN OCT 18 2009

.THIS AFTERNOON...N TO NE WINDS 20 TO 25 KT DIMINISH TO 15 KT N 
OF 25N TONIGHT. SEAS 11 FT S OF 27N SUBSIDING TO 6 FT N OF 27N.
.TONIGHT THROUGH TUE...S OF 25N NE WINDS 15 TO 20 KT. SEAS 7 FT. 
N OF 25N NE TO E WINDS 10 TO 15 KT. SEAS SUBSIDE TO 4 FT FROM 
26N TO 28N AND TO 2 FT N OF 28N. 
.WED...N OF 25N E TO SE WINDS 15 TO 20 KT. SEAS BUILD TO 8 FT 
LATE. S OF 25N E TO SE WINDS 10 TO 15 KT. SEAS SUBSIDE TO 4 FT. 
SCATTERED TSTMS FAR NW PORTION. 
.THU...SE TO S WINDS 10 TO 15 KT. SEAS 5 FT THROUGHOUT. 

$$
GMZ086-182130-
E GULF BETWEEN 81W AND 85W 
1030 AM CDT SUN OCT 18 2009

.THIS AFTERNOON...N WINDS 20 TO 25 KT DIMINISH TO 20 KT LATE. 
SEAS 9 FT EXCEPT N OF 27N SUBSIDE TO 4 FT.
.TONIGHT AND MON...N TO NE WINDS DIMINISH TO 15 KT. SEAS 6 FT S 
OF 25N AND SUBSIDING TO 3 FT N OF 25N.
.MON NIGHT THROUGH WED...S OF 27N NE TO E WINDS 15 TO 20 KT. 
SEAS 7 FT. N OF 27N E WINDS 15 KT. SEAS 5 FT S OF 28N AND 3 FT N 
OF 28N. ISOLATED TSTMS FAR S PORTION.
.THU...E TO SE WINDS 10 TO 15 KT. SEAS 5 FT.

$$
FORECASTER WALLY BARNES