000 ABNT20 KNHC 140533 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT TUE SEP 14 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE IGOR...LOCATED ABOUT 785 MILES EAST OF THE NORTHERN LEEWARD ISLANDS ...AND ON TROPICAL STORM JULIA...LOCATED ABOUT 245 MILES WEST-NORTHWEST OF THE SOUTHERNMOST CAPE VERDE ISLANDS. A BROAD AREA OF LOW PRESSURE OVER THE NORTHWEST CARIBBEAN SEA IS PRODUCING DISORGANIZED SHOWERS AND THUNDERSTORMS. THIS SYSTEM IS EXPECTED TO MOVE WESTWARD TO WEST-NORTHWESTWARD AT 10 TO 15 MPH OVER THE NEXT COUPLE OF DAYS...AND IT HAS SOME POTENTIAL FOR DEVELOPMENT BEFORE IT MOVES INLAND OVER THE YUCATAN PENINSULA BY WEDNESDAY EVENING. THERE IS A MEDIUM CHANCE...40 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. REGARDLESS OF DEVELOPMENT... LOCALLY HEAVY RAINFALL IS POSSIBLE OVER PORTIONS OF HAITI... JAMAICA...CUBA...THE CAYMAN ISLANDS...AND THE YUCATAN PENINSULA DURING THE NEXT DAY OR TWO. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES... ESPECIALLY IN AREAS OF MOUNTAINOUS TERRAIN. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER CANGIALOSI/PASCH