Here is the latest from the National Hurricane Center on the tropical system just east-northeast of Puerto Rico.
SPECIAL TROPICAL DISTURBANCE STATEMENT
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1100 AM EST MON DEC 10 2007
SATELLITE IMAGES AND SURFACE REPORTS INDICATE THAT A CLOSED SURFACE
CIRCULATION HAS DEVELOPED IN ASSOCIATION WITH THE BROAD AREA OF LOW
PRESSURE NOW CENTERED ABOUT 200 MILES EAST OF PUERTO RICO. SHOWER
ACTIVITY WITH THE LOW REMAINS DISORGANIZED…HOWEVER…WITH THE
STRONGEST THUNDERSTORMS LOCATED A COUPLE HUNDRED MILES NORTH AND
NORTHEAST OF THE CENTER. WHILE A TROPICAL OR SUBTROPICAL CYCLONE
COULD STILL FORM DURING THE NEXT 24 HOURS…UPPER-LEVEL WINDS ARE
EXPECTED TO BECOME GRADUALLY LESS FAVORABLE FOR DEVELOPMENT OVER
THE NEXT COUPLE OF DAYS. REGARDLESS OF WHETHER THE LOW DEVELOPS
FURTHER…IT COULD PRODUCE HEAVY SQUALLS AND GUSTY WINDS OF NEAR
GALE FORCE ACROSS THE VIRGIN ISLANDS AND PUERTO RICO LATER TODAY
AND TONIGHT AS IT MOVES WESTWARD OR WEST-SOUTHWESTWARD AT ABOUT 20
MPH. HEAVY RAINS OVER PUERTO RICO AND HISPANIOLA COULD CAUSE
LIFE-THREATENING FLASH FLOODS AND MUD SLIDES…AND INTERESTS IN
THESE AREAS SHOULD CONTINUE TO MONITOR THE PROGRESS OF THIS SYSTEM.
FURTHER SPECIAL TROPICAL DISTURBANCE STATEMENTS WILL BE ISSUED AS
NECESSARY.
I have not done much viewing of the system, so thought I would take a look at the latest satellite imagery. I was rather surprised to see a very lopsided cloud mass with nearly all the clouds north of an east-west line through the approximate center. Here is the satellite image that I saw:

Just another example of an interesting weather phenomena.
-Brian-