000
AGXX40 KNHC 101654
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1253 PM EDT WED OCT 10 2007

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

UPPER LEVELS...
TROUGH THROUGH 31N75W TO ACROSS THE YUCATAN PENINSULA AND NORTHERN 
CENTRAL AMERICA WILL PERSIST THROUGH SUNDAY AND BE REINFORCED NORTH 
OF 25N BY A MIDDLE LATITUDE SHORTWAVE FRIDAY. TROUGH WILL WEAKEN 
SUNDAY WITH A BROAD RIDGE OVER THE AREA BY LATE MONDAY.

LOWER LEVELS...
A SURFACE TROUGH WILL CLOSELY REFLECT THE UPPER TROUGH. A COUPLE OF 
FAST MOVING NON TROPICAL LOWS WILL DEVELOP IN THE CENTRAL BAHAMAS 
AND MOVE RAPIDLY NORTHEAST. ONE WILL FORM LATE TONIGHT AND THURSDAY 
AND MOVE NORTHEAST PAST 31N FRIDAY. WINDS WILL BE CONFINED TO THE 
SOUTHEAST SEMICIRCLE AND WILL REACH TO THE 20 TO 30 KNOT RANGE BY 
THURSDAY NIGHT.  A SECOND WEAKER LOW FORMS FRIDAY NIGHT AND MOVES 
NORTHEAST PASSING EAST OF 60W MONDAY. THE SECOND LOW IS NOT FORECAST 
TO BE AS STRONG AS THE FIRST LOW WITH WINDS ONLY IN THE 20 KNOT 
RANGE.

PERSISTENT LOW OVER THE YUCATAN PENINSULA AND THE NORTHWEST 
CARIBBEAN WILL WEAKEN TOWARD THE END OF THE FORECAST.

TRADES IN THE CARIBBEAN WILL BE LESS THAN NORMAL BECAUSE OF THE 
PERSISTENT TROUGH ACROSS THE NORTHERN PART MEANS NO RIDGE NORTH OF 
THE AREA.  TRADES IN THE ATLANTIC WILL BE SOMEWHAT STRONGER AND NEAR 
NORMAL FALLING TO LESS THAN NORMAL MONDAY.

WINDS IN THE SOUTHERN GULF WILL APPROACH 20 KNOTS CAUSED BY THE 
ABOVE MENTIONED SURFACE LOW. THESE WINDS WILL DIMINISH MONDAY.

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER LL