000
ABNT20 KNHC 122351
TWOAT 
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 PM EDT SUN SEP 12 2010

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE
IGOR...LOCATED ABOUT 1065 MILES EAST OF THE NORTHERN LEEWARD
ISLANDS...AND ON TROPICAL DEPRESSION TWELVE...LOCATED ABOUT 140
MILES SOUTHEAST OF THE SOUTHERNMOST CAPE VERDE ISLANDS.  

AIRCRAFT DATA FROM NOAA AND NASA RESEARCH MISSIONS WITHIN THE AREA
OF DISTURBED WEATHER OVER THE CENTRAL CARIBBEAN SEA SUGGEST THAT
THE SYSTEM MAY NOT HAVE A WELL-DEFINED CENTER OF CIRCULATION. 
HOWEVER...THE DISTURBANCE IS STILL PRODUCING A LARGE AND
DISORGANIZED AREA OF SHOWERS AND THUNDERSTORMS WHICH COULD CAUSE
LOCALLY HEAVY RAINFALL IN PORTIONS OF PUERTO RICO...HISPANIOLA...
JAMAICA...AND CUBA DURING THE NEXT DAY OR TWO.  THESE RAINS COULD
CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES...ESPECIALLY IN
MOUNTAINOUS TERRAIN.  THERE IS A MEDIUM CHANCE...40 PERCENT...THAT
THIS SYSTEM COULD BECOME A TROPICAL CYCLONE DURING THE NEXT 48
HOURS AS IT MOVES WEST-NORTHWESTWARD AT 10 TO 15 MPH TOWARD THE
NORTHWESTERN CARIBBEAN SEA. 

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

PUBLIC ADVISORIES ON TROPICAL DEPRESSION TWELVE ARE ISSUED UNDER WMO
HEADER WTNT32 KNHC AND UNDER AWIPS HEADER MIATCPAT2.
FORECAST/ADVISORIES ARE ISSUED UNDER WMO HEADER WTNT22 KNHC AND
UNDER AWIPS HEADER MIATCMAT2.

$$
FORECASTER BERG