000 ABNT20 KNHC 310554 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT TUE AUG 31 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE EARL...LOCATED ABOUT 110 MILES NORTH OF SAN JUAN PUERTO RICO...AND ON TROPICAL STORM FIONA...LOCATED ABOUT 670 MILES EAST OF THE LEEWARD ISLANDS. A BROAD AREA OF LOW PRESSURE...ASSOCIATED WITH A TROPICAL WAVE...HAS FORMED SEVERAL HUNDRED MILES SOUTH-SOUTHWEST OF THE CAPE VERDE ISLANDS. DEVELOPMENT...IF ANY...OF THIS SYSTEM IS EXPECTED TO BE SLOW TO OCCUR AS IT MOVES WESTWARD AT 15 TO 20 MPH. THERE IS A LOW CHANCE...10 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. PUBLIC ADVISORIES ON FIONA ARE ISSUED UNDER WMO HEADER WTNT33 KNHC AND UNDER AWIPS HEADER MIATCPAT3. FORECAST/ADVISORIES ON FIONA ARE ISSUED UNDER WMO HEADER WTNT23 KNHC AND UNDER AWIPS HEADER MIATCMAT3. $$ FORECASTER CANGIALOSI/BLAKE