000 AXNT20 KNHC 101135 TWDAT TROPICAL WEATHER DISCUSSION...CORRECTION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 705 AM EST FRI DEC 10 2010 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1100 UTC. ...ITCZ... THE ITCZ AXIS IS CENTERED FROM SRN GUINEA NEAR 9N13W ALONG 8N25W 5N36W EQ51W. SCATTERED MODERATE/ISOLATED STRONG CONVECTION IS WITHIN 90 NM N OF THE AXIS BETWEEN 20W-31W. SCATTERED MODERATE/STRONG CONVECTION IS ALSO OFF THE COAST OF LIBERIA FROM 3N-8N BETWEEN 8W-20W. ...DISCUSSION... GULF OF MEXICO... THE GULF OF MEXICO REMAINS UNDER MOSTLY FAIR CONDITIONS THIS MORNING AS HIGH PRESSURE BUILDS ACROSS THE BASIN AND THE FAR ERN CONUS. WATER VAPOR IMAGERY INDICATES THAT A SHORTWAVE UPPER TROUGH CONTINUES TO MOVE EWD E OF THE FLORIDA PENINSULA LEAVING MAINLY NWLY FLOW ALOFT COVERING THE AREA. MOSTLY DRY AIR ALOFT SPREADS ACROSS THE GULF WITH SOME MODERATE MOISTURE MAKING ITS WAY ACROSS THE NRN GULF COAST. PATCHES OF STRATOCUMULUS CLOUDS ARE ACROSS THE CENTRAL GULF. POSSIBLE ISOLATED SHOWERS ARE ALSO IN THE SE GULF JUST N OF WRN CUBA. ANTI-CYCLONIC SURFACE FLOW IS AROUND THE BUILDING RIDGE WITH THE STRONGEST WINDS OF 15-20 KT OFF THE SW COAST OF FLORIDA AND ALONG THE TEXAS COASTLINE. EXPECT SURFACE RIDGING TO REMAIN ACROSS THE GULF MAINTAINING FAIR CONDITIONS BEFORE THE NEXT COLD FRONT PUSHES INTO THE AREA LATE SUNDAY. CARIBBEAN SEA... A SHORTWAVE UPPER LEVEL TROUGH EXTENDS FROM E OF THE FLORIDA PENINSULA INTO THE NW CARIBBEAN SUPPORTING A SURFACE TROUGH...REMNANT OF A LOW PRESSURE SYSTEM...ALONG 21N81W TO THE HONDURAS/NICARAGUA BORDER NEAR 15N83W 13N87W. PATCHES OF LOW CLOUDS ARE NOTED ALONG AND BEHIND THIS BOUNDARY WITH POSSIBLE ISOLATED SHOWERS. DRY AND CLEAR CONDITIONS ARE WITHIN 200 NM SE OF THE TROUGH UNTIL REACHING AN AREA OF ENHANCED MOISTURE THAT SPREADS FROM THE SW CARIBBEAN ACROSS ERN CUBA/HISPANIOLA ASSOCIATED WITH A STRONG UPPER LEVEL JET SANDWICHED BETWEEN THE UPPER LEVEL TROUGH ACROSS THE NW CARIBBEAN AND UPPER LEVEL RIDGING COVERING THE REMAINDER OF THE BASIN CENTERED OVER NE SOUTH AMERICA. A SURFACE TROUGH EXTENDS FROM THE SW ATLC THROUGH THE WINDWARD PASSAGE NEAR 20N73W TO NEAR 14N77W WHERE THE BOUNDARY CONTINUES AS A SHEAR LINE TO A 1011 MB LOW OVER PANAMA NEAR 8N78W. THE COMBINATION OF SURFACE CONVERGENCE AND UPPER LEVEL DIFFLUENCE IS ENHANCING SCATTERED SHOWERS/THUNDERSTORMS BETWEEN 73W-80W S OF 17W...AND ACROSS PORTIONS OF ERN CUBA...HISPANIOLA...AND PUERTO RICO BETWEEN 67W-76W N OF 17W. STRONG SHOWERS/THUNDERSTORMS ARE ALSO ACROSS NRN COLOMBIA AND THE IMMEDIATE COASTAL WATERS. THE FAR ERN CARIBBEAN IS UNDER FAIR CONDITIONS WITH A FEW ISOLATED SHOWERS EMBEDDED IN THE ELY TRADEWIND FLOW S OF 13N E OF 67W. EXPECT SHOWER/THUNDERSTORM ACTIVITY TO CONTINUE ACROSS THE CENTRAL PORTIONS OF THE CARIBBEAN OVER THE NEXT 24 HOURS. ATLANTIC OCEAN... AN UPPER LEVEL SHORTWAVE TROUGH E OF THE FLORIDA PENINSULA SUPPORTS A DISSIPATING STATIONARY FRONT ALONG 31N76W 30N79W 27N80W. ISOLATED SHOWERS/THUNDERSTORMS ARE FROM 28N-31N BETWEEN 75W-81W. FARTHER E...THE UPPER LEVEL JET NOTED ACROSS THE CARIBBEAN EXTENDS FROM HISPANIOLA NE TO NEAR 32N61W CARRYING HIGH MOISTURE LEVELS FROM THE CENTRAL CARIBBEAN AND SUPPORTING NUMEROUS SHOWERS/POSSIBLE THUNDERSTORMS N OF 23N BETWEEN 60W-70W. SOME OF THIS SHOWER ACTIVITY IS CONTRIBUTED TO SURFACE CONVERGENCE NEAR A STATIONARY FRONT THAT ENTERS THE DISCUSSION AREA NEAR 32N54W TO 26N66W AND CONTINUES AS A SURFACE TROUGH TO NRN HAITI NEAR 20N73W. AN UPPER LEVEL RIDGE COVERS THE CENTRAL ATLC EXTENDING FROM NE SOUTH AMERICA TO NEAR 46N41W SUPPORTING A SURFACE RIDGE BETWEEN 30W-50W MAINTAINING FAIR CONDITIONS. AN OCCLUDED LOW CONTINUES TO SPIN E OF THE AZORES ISLANDS WITH THE UPPER LEVEL LOW CENTERED NEAR 36N25W...AND THE 1000 MB SURFACE LOW NEAR 38N20W. A SURFACE TROUGH EXTENDS ALONG 31N21W TO 24N25W DEPICTING A WIND SHIFT AROUND THE LOW PRESSURE CENTER...WITH A COLD FRONT EXTENDING ACROSS THE CANARY ISLANDS. THERE IS LITTLE SHOWER ACTIVITY ASSOCIATED WITH THIS SYSTEM WITH ONLY A FEW POSSIBLE ISOLATED SHOWERS N OF 30N BETWEEN 18W-27W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ WALTON