000
ABNT20 KNHC 212331
TWOAT 
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 PM EDT TUE SEP 21 2010

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

THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL
STORM LISA...LOCATED ABOUT 525 MILES WEST-NORTHWEST OF THE CAPE
VERDE ISLANDS...AND HAS ISSUED THE LAST ADVISORY ON HURRICANE
IGOR...THAT HAS LOST ITS TROPICAL CHARACTERISTICS ABOUT 125 MILES
NORTH-NORTHEAST OF ST. JOHNS NEWFOUNDLAND.

A TROPICAL WAVE OVER THE EASTERN CARIBBEAN SEA IS PRODUCING A LARGE
AREA OF DISORGANIZED SHOWERS AND THUNDERSTORMS.  ENVIRONMENTAL
CONDITIONS ARE EXPECTED TO BECOME MORE FAVORABLE FOR A TROPICAL
DEPRESSION TO FORM DURING THE NEXT COUPLE OF DAYS AS THE SYSTEM
MOVES WESTWARD NEAR 15 MPH.  THERE IS A MEDIUM CHANCE...50
PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE
NEXT 48 HOURS.  LOCALLY HEAVY RAINFALL AND GUSTY WINDS ARE LIKELY
OVER THE WINDWARD ISLANDS...THE NETHERLANDS ANTILLES...AND
THE NORTHERN COASTS OF VENEZUELA AND COLOMBIA DURING THE NEXT DAY OR
TWO.  THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS.

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

$$
FORECASTER CANGIALOSI/PASCH