000 ABNT20 KNHC 231131 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 AM EDT THU SEP 23 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON RECENTLY DOWNGRADED TROPICAL DEPRESSION LISA...LOCATED ABOUT 350 MILES WEST-NORTHWEST OF THE CAPE VERDE ISLANDS. THUNDERSTORM ACTIVITY HAS CONTINUED TO INCREASE AND BECOME BETTER ORGANIZED THIS MORNING IN ASSOCIATION WITH A VIGOROUS LOW PRESSURE SYSTEM LOCATED OVER THE SOUTH-CENTRAL CARIBBEAN SEA. ENVIRONMENTAL CONDITIONS ARE GRADUALLY BECOMING MORE FAVORABLE FOR DEVELOPMENT... AND THIS DISTURBANCE COULD BECOME A TROPICAL DEPRESSION LATER TODAY AS IT MOVES WESTWARD AT AROUND 15 MPH. AN AIR FORCE RESERVE RECONNAISSANCE UNIT AIRCRAFT IS SCHEDULED TO INVESTIGATE THE SYSTEM LATER THIS MORNING. THERE IS A HIGH CHANCE...80 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. REGARDLESS OF DEVELOPMENT...THIS DISTURBANCE HAS THE POTENTIAL TO PRODUCE HEAVY RAINFALL OVER PORTIONS OF CENTRAL AMERICA IN A COUPLE OF DAYS. THE REMNANT CIRCULATION OF FORMER TROPICAL DEPRESSION JULIA IS LOCATED ABOUT 750 MILES SOUTHWEST OF THE AZORES ISLANDS. ALTHOUGH SHOWER ACTIVITY HAS REDEVELOPED NEAR THE CENTER OF THIS DISTURBANCE...ENVIRONMENTAL CONDITIONS ARE ONLY MARGINALLY CONDUCIVE FOR ANY ADDITIONAL ORGANIZATION TO OCCUR. THERE IS A LOW CHANCE...10 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES SOUTHWESTWARD AT 10 TO 15 MPH. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART