000 ABNT20 KNHC 191757 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT SAT JUL 19 2008 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE BERTHA...LOCATED ABOUT 450 MILES EAST-SOUTHEAST OF CAPE RACE NEWFOUNDLAND...AND ON RECENTLY UPGRADED TROPICAL STORM CRISTOBAL... LOCATED ABOUT 100 MILES EAST OF CHARLESTON SOUTH CAROLINA. A STRONG TROPICAL WAVE LOCATED IN THE WESTERN CARIBBEAN SEA IS PRODUCING THUNDERSTORMS AND STRONG WINDS WITH GUSTS ABOVE TROPICAL STORM FORCE. AN AIR FORCE RECONNAISSANCE AIRCRAFT IS CURRENTLY INVESTIGATING THE SYSTEM TO DETERMINE IF IT HAS A CLOSED CIRCULATION. ENVIRONMENTAL CONDITIONS APPEAR FAVORABLE FOR THIS SYSTEM TO BECOME A TROPICAL DEPRESSION WITHIN THE NEXT DAY OR TWO AS IT MOVES WEST-NORTHWESTWARD AT 15 TO 20 MPH. REGARDLESS OF DEVELOPMENT...LOCALLY HEAVY RAINS WILL AFFECT JAMAICA...PORTIONS OF CUBA...AND THE CAYMAN ISLANDS TODAY AND TOMORROW. INTERESTS IN THE NORTHWESTERN CARIBBEAN SEA AND THE YUCATAN PENINSULA SHOULD CONTINUE TO MONITOR THE PROGRESS OF THIS SYSTEM. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. PUBLIC ADVISORIES ON TROPICAL STORM CRISTOBAL ARE ISSUED UNDER WMO HEADER WTNT33 AND UNDER AWIPS HEADER MIATCPAT3. FORECAST/ADVISORIES ARE ISSUED UNDER WMO HEADER WTNT23 AND UNDER AWIPS HEADER MIATCMAT3. $$ FORECASTER BLAKE/KNABB