000 AXNT20 KNHC 240551 TWDAT TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 205 AM EDT SAT AUG 24 2013 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...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL ANALYSIS. BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0515 UTC. ...TROPICAL WAVES... TROPICAL WAVE OFF AFRICA EXTENDS FROM 19N22W TO A 1010 MB LOW NEAR 12N24W TO 8N24W MOVING W NEAR 10 KT. WAVE IS EMBEDDED WITHIN A SURGE OF DEEP MOISTURE AS DEPICTED ON THE TOTAL PRECIPITABLE WATER IMAGERY. SCATTERED MODERATE CONVECTION IS FROM 9N-14N BETWEEN 26W-32W. TROPICAL WAVE IN THE W TROPICAL ATLC EXTENDS FROM 17N55W TO 8N56W MOVING W 10-15 KT. WAVE IS EMBEDDED WITHIN AN AREA OF MODERATE MOISTURE AS DEPICTED ON THE TOTAL PRECIPITABLE WATER IMAGERY. SCATTERED SHOWERS ARE FROM 12N-16N BETWEEN 52W-60W. TROPICAL WAVE OVER S GULF OF MEXICO EXTENDS FROM 23N89W TO INLAND OVER GUATEMALA AT 14N90W MOVING W NEAR 15 KT. WAVE IS EMBEDDED WITHIN A BROAD AREA OF MODERATE TO DEEP MOISTURE THAT COVERS THE W CARIBBEAN AND GULF OF MEXICO AS DEPICTED ON THE TOTAL PRECIPITABLE WATER IMAGERY. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS FROM 12N-19N BETWEEN 88W-94W. ...ITCZ/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS ACROSS AFRICA INTO THE E TROPICAL ATLC NEAR 16N16W TO THE 1010 MB LOW/TROPICAL WAVE NEAR 12N24W TO 12N36W. AN ITCZ CONTINUES FROM 12N36W TO 12N53W. A SMALL 1014 MB LOW IS CENTERED N OF THE ITCZ NEAR 15N39W WITH ISOLATED SHOWERS POSSIBLE WITHIN 120 NM OF THE LOW. BESIDES THE SCATTERED MODERATE CONVECTION ALONG THE TROPICAL WAVE FROM 9N-14N BETWEEN 26W-32W ...SCATTERED MODERATE CONVECTION IS FROM 5N-12N BETWEEN 36W-51W. ...DISCUSSION... GULF OF MEXICO... A TROPICAL WAVE OVER THE S GULF OF MEXICO FROM 23N89W TO INLAND OVER GUATEMALA AT 14N90W. SEE ABOVE. 10-15 KT SURFACE WINDS ARE ROTATING AROUND THE WAVE AXIS. ELSEWHERE...CLUSTERS OF SCATTERED MODERATE CONVECTION ARE OVER THE E GULF E OF 87W...AND OVER W CUBA. IN THE UPPER LEVELS...A SMALL UPPER LEVEL LOW IS CENTERED OVER THE BAY OF CAMPECHE NEAR 20N92W. A SMALL UPPER LEVEL HIGH IS CENTERED OVER THE E GULF NEAR 29N95W. CONSIDERABLE UPPER LEVEL MOISTURE IS OVER THE GULF. EXPECT OVER THE NEXT 24 HOURS FOR THE TROPICAL WAVE TO MOVE W WITH CONVECTION. ALSO EXPECT MORE CONVECTION OVER THE N GULF DUE TO UPPER LEVEL DIFFLUENCE. CARIBBEAN SEA... CLUSTERS OF SCATTERED MODERATE CONVECTION ARE OVER THE W CARIBBEAN SEA W OF 80W. ELSEWHERE...A MONSOON TROUGH EXTENDS FROM N COLOMBIA TO COSTA RICA ALONG 11N. SCATTERED MODERATE CONVECTION IS S OF 11N. MOSTLY FAIR WEATHER IS OVER THE CENTRAL AND E CARIBBEAN. SOME SCATTERED SHOWEWRS ARE HOWEVER ABOUT TO ADVECT OVER THE WINDWARD ISLANDS FROM THE ATLANTIC S OF 15N. IN THE UPPER LEVELS...A SMALL UPPER LEVEL LOW IS CENTERED OVER HISPANIOLA NEAR 19N70W. CONSIDERABLE UPPER LEVEL MOISTURE IS OVER THE W CARIBBEAN W OF 80W. STRONG SUBSIDENCE IS OVER THE CENTRAL AND E CARIBBEAN. EXPECT OVER THE NEXT 24 HOURS FOR CONTINUED CONVECTION OVER CENTRAL AMERICA AND THE SW CARIBBEAN. ALSO EXPECT ANOTHER TROPICAL WAVE TO MOVE INTO THE LESSER ANTILLES. HISPANIOLA... PRESENTLY SCATTERED SHOWERS LINGER OVER THE DOMINICAN REPUBLIC POSSIBLY DUE TO THE UPPER LEVEL LOW. EXPECT MORE SHOWERS OVER THE NEXT 24 HOURS. ATLANTIC OCEAN... A 1019 MB HIGH IS CENTERED OVER THE W ATLANTIC NEAR 30N67W PRODUCING FAIR WEATHER. A LARGE 1033 MB HIGH IS CENTERED OVER THE E ATLANTIC N OF THE AZORES AT 43N30W PRODUCING EASTERLY SURFACE FLOW BETWEEN 20N-30N E OF 50W WITH MOSTLY FAIR WEATHER. NO UPPER LEVEL FEATURES ARE PRODUCING CONVECTION. EXPECT OVER THE NEXT 24 HOURS FOR THE TAIL END OF A COLD FRONT TO DIP INTO THE W ATLANTIC W OF 75W AND PRODUCE CONVECTION OFF THE FLORIDA COAST. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORMOSA