000 ABNT20 KNHC 211744 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT THU OCT 21 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON RECENTLY UPGRADED TROPICAL STORM RICHARD LOCATED ABOUT 200 MILES SOUTH-SOUTHEAST OF GRAND CAYMAN AND ABOUT 205 MILES EAST-NORTHEAST OF THE HONDURAS/NICARAGUA BORDER. A LARGE LOW PRESSURE SYSTEM LOCATED ABOUT 330 MILES SOUTH OF THE CAPE VERDE ISLANDS CONTINUES TO SHOW SIGNS OF ORGANIZATION. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BECOME MORE CONDUCIVE FOR DEVELOPMENT DURING THE NEXT COUPLE OF DAYS...WITH UNFAVORABLE CONDITIONS FORECAST TO DEVELOP AFTER THAT TIME. THERE IS A MEDIUM CHANCE...30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES TO THE WEST-NORTHWEST OR NORTHWEST AT 10 TO 15 MPH. LOCALLY HEAVY RAINFALL AND GUSTY WINDS WILL BE POSSIBLE OVER THE SOUTHERN CAPE VERDE ISLANDS THROUGH FRIDAY. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. PUBLIC ADVISORIES ON TROPICAL STORM RICHARD ARE ISSUED UNDER WMO HEADER WTNT34 KNHC AND UNDER AWIPS HEADER MIATCPAT4. FORECAST/ADVISORIES ARE ISSUED UNDER WMO HEADER WTNT24 KNHC AND UNDER AWIPS HEADER MIATCMAT4. $$ FORECASTER STEWART