000
AGXX40 KNHC 041735
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
125 PM EDT TUE AUG 04 2009

MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA
AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

GULF OF MEXICO...
GUIDANCE NOT NEAR AS AGGRESSIVE WITH THE WEAK FRONTAL TROUGHS 
DROPPING SE AND STALLING OVER THE NE GULF WATERS....BUT WITH 
WINDS IN THIS VICINITY NEAR THE RIDGE EXPECTED TO BE LIGHT AND 
VARIABLE ANYWAY...WILL DROP MENTION OF TROUGHS IN TEXT PRODUCTS. 
OTHERWISE A RIDGE WILL MEANDER E TO W OVER THE NORTHERN WATERS 
THROUGH SAT WITH A 1017 MB HIGH PRES BRIEFLY DEVELOPING OVER THE 
NW WATERS ALONG THE RIDGE AXIS. SLY RETURN FLOW AT MOSTLY 10 KT 
WITH OCCASIONAL 15 KT OVER THE NW WATERS S OF THE RIDGE AXIS. 
EXPECTING THE NEAR SUNSET BACKING WIND SHIFT TO THE N AND NE AT 
15 TO 20 KT ALONG THE NE YUCATAN PENINSULA LATE EACH DAY TILL A 
FEW HOURS AFTER SUNSET. THE NORTHERN EXTENSION OF A TROPICAL 
WAVE WILL MOVE THROUGH THE FL STRAITS TONIGHT AND OVER THE SE 
GULF WATERS WED SLOWLY WASHING OUT THROUGH THU. THE SOUTHERN 
PORTION OF THE SAME WAVE WILL MOVE W THROUGH THE YUCATAN CHANNEL 
WED AFTERNOON AND THROUGH THE BAY OF CAMPECHE THU AND THU NIGHT. 
A SECOND TROPICAL WAVE WILL ENTER THE SE WATERS SAT AND MOVE 
THROUGH YUCATAN CHANNEL SAT NIGHT INTO SUN. 

TROPICAL ATLC AND CARIBBEAN SEA...
FRESH ELY TRADES WILL CONTINUE ACROSS THE CENTRAL CARIBBEAN WITH 
NE TO E WINDS AT 20 TO 25 KT WITH OCCASIONAL 25 TO 30 KT ALONG 
THE NW COAST COLOMBIA. THE REMAINDER OF CARIBBEAN SEA TO THE S 
OF 20N IS EXPERIENCING MOSTLY E 15 TO 20 KT WITH NE TO E WINDS 
AT 10 TO 15 KT OVER THE FAR NW WATERS. A TROPICAL WAVE OVER THE 
CENTRAL CARIBBEAN WILL CONTINUE W TO ALONG 80W WED...AND MOVE 
THROUGH THE GULF OF HONDURAS WED NIGHT INTO EARLY THU. A SECOND 
WAVE WILL REACH ALONG 55W TONIGHT...ALONG 62W WED...AND MOVE 
THROUGH THE W CARIBBEAN SAT AND SUN.
 
SW ATLC W OF 55W...
THE NORTHERN EXTENSION OF A TROPICAL WAVE IS MOVING NW THROUGH 
THE CENTRAL BAHAMAS ATTM AND WILL REACH THE NW BAHAMAS AND SE 
FLORIDA WED. OTHERWISE...A RIDGE DISSECTS THE ATLC WATERS FROM 
BERMUDA TO CENTRAL FL...AND IS EXPECTED TO SLOWLY SHIFT N TO 
ALONG 30N BY THE WEEKEND. GENERALLY EXPECTING S TO SW WINDS AT 
10 TO 15 KT OVER THE NW WATERS AND SE TO S OVER THE NE 
WATERS...TILL THE RIDGE AXIS ARRIVES...THEN SLY 5 KT ALL WATERS 
N OF 28N. E TO SE WINDS AT 10 TO 15 KT OVER THE AREA FROM 27N TO 
25N. S OF 25N EXPECTING E WINDS AT 15 TO 20 KT...MAX SEAS 8 
FT...WITH THE AREA SHIFTING TO S OF 23N LATE IN THE PERIOD.
 
WARNINGS

ATLC...
.NONE. 

CARIBBEAN...
.NONE. 

GULF OF MEXICO...
.NONE.

$$
FORECASTER NELSON