000 AXNT20 KNHC 061745 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 105 PM EST WED DEC 06 2006 TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA... CENTRAL AMERICA...THE GULF OF MEXICO...THE CARIBBEAN SEA... NORTHEASTERN SECTIONS OF SOUTH AMERICA...AND THE 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1715 UTC. ...THE ITCZ... ITCZ AXIS IS CENTERED ALONG 10N13W 7N20W 5N30W 4N40W 2N50W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS FROM EQ-5N BETWEEN 27W-33W...AND FROM 2N-6N BETWEEN 33W-45W. WIDELY SCATTERED MODERATE CONVECTION IS FROM 7N-10N BETWEEN 57W-60W. ...DISCUSSION... THE GULF OF MEXICO... A 1026 MB HIGH IS CENTERED OVER MISSISSIPPI NEAR 32N89W. A RIDGE AXIS EXTENDS SW TO S TEXAS. 10-20 KT ELY WINDS DOMINATES THE ENTIRE GULF OF MEXICO. BROKEN TO OVERCAST LOW CLOUDS DOTS THE GULF. IN THE UPPER LEVELS... AN UPPER LEVEL HIGH CENTERED NEAR THE CAYMAN ISLANDS AT 20N79W IS PRODUCING SWLY UPPER LEVEL FLOW OVER THE GULF OF MEXICO WITH UPPER LEVEL MOISTURE PRODUCING SCATTERED TO BROKEN HIGH CLOUDS N OF 25N. EXPECT A COLD FRONT TO MOVE OFF THE TEXAS COAST AND EXTEND FROM THE FLORIDA PANHANDLE TO TAMPICO MEXICO BY THURSDAY AFTERNOON WITH CONVECTION. THE CARIBBEAN SEA... A STATIONARY FRONT EXTENDS FROM W CUBA TO NW HONDURAS ALONG 24N80W 21N85W 16N88W. BROKEN LOW CLOUDS WITH SCATTERED SHOWERS DOTS THE W CARIBBEAN AND CENTRAL AMERICA W OF 82W. A SURFACE TROUGH DEPICTED BY WIND SHIFTS IS OVER THE CENTRAL CARIBBEAN SEA FROM HISPANIOLA TO N COLOMBIA ALONG 20N70W 10N75W. FURTHER E...SCATTERED SHOWERS ARE OVER THE WINDWARD ISLANDS S OF 15N AND E OF 64W. IN THE UPPER LEVELS... AN UPPER LEVEL HIGH IS CENTERED NEAR THE CAYMAN ISLANDS AT 20N79W. ANTICYCLONIC FLOW IS FROM 10N-32N BETWEEN 70W-90W. FURTHER E...AN UPPER LEVEL LOW IS CENTERED OVER THE LEEWARD ISLANDS NEAR 20N60W. CYCLONIC FLOW IS FROM 10N-25N BETWEEN 55W-70W. EXPECT TO STATIONARY FRONT TO DISSIPATE DURING THE NEXT 24 HOURS...AND THE SURFACE TROUGH TO MOVE W OVER THE CENTRAL CARIBBEAN WITH ADDITIONAL SHOWERS. ALSO EXPECT MORE SHOWERS OVER CENTRAL AMERICA. THE ATLANTIC OCEAN... COLD FRONT IS OVER THE CENTRAL ATLANTIC ALONG 32N51W 30N55W 29N65W. A STATIONARY FRONT CONTINUES TO W CUBA ALONG 26N74W 24N80W. SCATTERED SHOWERS ARE WITHIN 90 NM OF THE FRONTS. A 1034 MB HIGH IS OVER THE E ATLANTIC NEAR 34N23W. IN THE UPPER LEVELS...A RIDGE IS OVER THE W ATLANTIC W OF 70W. AN UPPER LEVEL LOW IS OVER THE LEEWARD ISLANDS NEAR 20N60W. CYCLONIC FLOW IS FROM 10N-25N BETWEEN 55W-70W. A RIDGE IS OVER THE CENTRAL ATLANTIC N OF 20N BETWEEN 45W-55W. AN UPPER LEVEL LOW IS OVER THE E ATLANTIC NEAR 21N30W. CYCLONIC FLOW IS N OF 10N BETWEEN 20W-45W. EXPECT TROPICAL MOISTURE WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TO BE OVER THE W ATLANTIC N OF 20N BETWEEN 60W-75W DURING THE NEXT 24 HOURS. $$ FORMOSA