000 AXNT20 KNHC 240604 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 205 AM EDT MON AUG 24 2009 TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER OBSERVATIONS...AND RADAR. BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0345 UTC. ...SPECIAL FEATURES... THE CENTER OF HURRICANE BILL AT 24/0300 UTC IS NEAR 47.9N 53.6W OR ABOUT 90 MILES/145 KM...TO THE NORTH-NORTHWEST OF CAPE RACE NEWFOUNDLAND. BILL IS MOVING TOWARD THE EAST NORTHEAST 23 KT. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 975 MB. THE MAXIMUM SUSTAINED WIND SPEEDS ARE 65 KT WITH GUSTS TO 80 KT. PLEASE READ THE FORECAST/ADVISORY UNDER AFOS/ WMO HEADERS TCMAT3/WTNT23 KNHC AND THE PUBLIC ADVISORY UNDER TCPAT3/WTNT33 KNHC FOR MORE DETAILS. ..TROPICAL WAVES... AN EASTERN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 25W/26W TO THE SOUTH OF 20N MOVING WEST 15 TO 20 KT. NO DEEP CONVECTIVE PRECIPITATION IS AROUND THIS WAVE. AN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 54W AND 55W...MOVING WEST FROM 20 KT TO 25 KT. SCATTERED MODERATE SHOWERS FROM 13N TO 20N BETWEEN 51W AND 60W. A CARIBBEAN SEA TROPICAL WAVE IS ALONG 71W TO THE SOUTH OF 17N MOVING WEST 15 TO 20 KT. DISORGANIZED ISOLATED MODERATE SHOWERS AND THUNDERSTORMS ARE FROM 13N TO 17N BETWEEN 75W AND 78W. THE ITCZ... FROM 14N17W TO 12N30W TO 10N40W TO 13N54W T0 12N60W. ISOLATED MODERATE SHOWERS TO LOCALLY STRONG THUNDERSTORMS FROM 6N TO 16N BETWEEN AFRICA AND 40W. ...DISCUSSION... THE GULF OF MEXICO... AN UPPER LEVEL TROUGH PASSES THROUGH CENTRAL ALABAMA TO THE NORTH CENTRAL GULF...INTO THE SOUTHWESTERN CORNER OF THE AREA. THIS TROUGH IS GUIDING THE CURRENT GULF OF MEXICO STATIONARY FRONT THAT STRETCHES FROM CENTRAL FLORIDA INTO THE CENTRAL GULF...AND THEN IT CURVES NORTHWARD BEYOND EAST TEXAS. ISOLATED MODERATE SHOWERS IN THE WEST CENTRAL GULF OF MEXICO HAVE BEEN DIMINISHING WITH TIME. MODERATE SHOWERS BETWEEN 90W AND THE ISTHMUS OF TEHUANTEPEC REMAIN...BUT THEY HAVE BEEN WEAKENING WITH TIME ALSO. THE CARIBBEAN SEA... BROAD UPPER LEVEL CYCLONIC FLOW HAS INVADED THE NORTHEASTERN CORNER OF THE AREA...FROM A LARGE-SCALE ATLANTIC OCEAN 26N61W CYCLONIC CIRCULATION CENTER. THE UPPER LEVEL FLOW IN THE SOUTHEASTERN CORNER OF THE AREA IS FROM THE SOUTHEAST...CREATING A LITTLE BIT OF UPPER LEVEL DIFFLUENT FLOW...BUT NO DEEP CONVECTIVE PRECIPITATION. A MIDDLE LEVEL TO UPPER LEVEL INVERTED TROUGH IS MOVING ASHORE FROM HONDURAS TO NICARAGUA TO COSTA RICA. THIS TROUGH IS BRINGING ISOLATED MODERATE SHOWERS TO LOCALLY STRONG THUNDERSTORMS WITH IT. THE ATLANTIC OCEAN... A MIDDLE LEVEL TO UPPER LEVEL TROUGH GOES FROM A 34N48W ATLANTIC OCEAN CYCLONIC CIRCULATION CENTER THAT IS NEAR 26N61W. CYCLONIC FLOW AROUND THE 26N61W CENTER COVERS THE AREA FROM THE NORTHEASTERN CARIBBEAN SEA TO 34N BETWEEN 48W AND 68W. ISOLATED MODERATE SHOWERS ARE WITHIN THE AREA OF CYCLONIC FLOW OF THE 26N61W CENTER. A MIDDLE LEVEL TO UPPER LEVEL TROUGH EXTENDS FROM A 30N25W CYCLONIC CENTER TO 20N31W. $$ MT