000 AXNT20 KNHC 300556 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 105 AM EST TUE NOV 30 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0515 UTC. ...THE ITCZ... FROM THE COASTAL WATERS OF GUINEA-BISSAU/GUINEA TO 9N20W 10N31W 9N40W 9N49W...INTO NORTHERN GUYANA NEAR 8N59W. STRONG RAINSHOWERS AND THUNDERSTORMS ARE FROM 4N TO 6N BETWEEN 10W AND 14W. WIDELY SCATTERED MODERATE RAINSHOWERS TO ISOLATED STRONG THUNDERSTORMS ARE FROM 3N TO 13N BETWEEN 19W AND 44W...AND FROM 8N TO 12N BETWEEN 44W AND 60W. ISOLATED MODERATE RAINSHOWERS ARE ELSEWHERE OVER THE WATERS TO THE SOUTH OF 13N. ...DISCUSSION... THE GULF OF MEXICO... UPPER LEVEL SOUTHWESTERLY WIND FLOW COVERS THE AREA THAT IS TO THE NORTHWEST OF THE LINE THAT GOES FROM 21N110W...ACROSS MEXICO TO THE DEEP SOUTH OF TEXAS...BEYOND SOUTHERN ALABAMA. THE SOUTHWESTERLY FLOW IS ON THE EASTERN SIDE OF THE NEXT DEEP LAYER TROUGH THAT IS MOVING THROUGH THE U.S.A. MIDWEST. THE TROUGH SUPPORTS THE CURRENT COLD FRONT THAT IS MOVING THROUGH EASTERN TEXAS AT THIS TIME. BROAD UPPER LEVEL ANTICYCLONIC FLOW COVERS THE REST OF THE AREA. A STATIONARY FRONT PASSES OVER THE NORTHERN BAHAMAS TO FLORIDA ALONG 82W FROM 28N TO 29N. RAINSHOWERS ARE POSSIBLE IN THE CLUSTERS OF CLOUDS THAT HAVE DEVELOPED IN THE RETURN SOUTHERLY FLOW...NOW MOSTLY MOVING THROUGH THE YUCATAN CHANNEL AND ELSEWHERE TO THE EAST OF 90W. THE CARIBBEAN SEA... A 1006 MB LOW PRESSURE CENTER IS NEAR 10N79W IN THE SOUTHWESTERN CORNER OF THE AREA. STRONG RAINSHOWERS AND THUNDERSTORMS ARE WITHIN 120 NM TO 240 NM OF THE LOW CENTER IN THE WESTERN SEMICIRCLE. THIS MEANS THAT STRONG PRECIPITATION EITHER IS IN THE COASTAL WATERS AND/OR THE COASTAL PLAINS FROM EAST CENTRAL NICARAGUA TO CENTRAL PANAMA. LOW CLOUDS AND POSSIBLE RAINSHOWERS ARE WITHIN 30 NM TO 60 NM ON EITHER SIDE OF 16N83W 13N84W 10N84W. THIS LINE OF CLOUDS MAY BE OR MAY NOT BE RELATED TO THE 10N79W LOW CENTER. IT IS MOVING TOWARD THE AREA THAT COVERS EASTERN HONDURAS...EASTERN NICARAGUA AND CENTRAL COSTA RICA. BROKEN TO OVERCAST LOW CLOUDS WITH POSSIBLE RAINSHOWERS ARE IN CLUSTERS...MOVING FROM THE ATLANTIC OCEAN INTO THE NORTHEASTERN QUADRANT AND NORTH CENTRAL SECTIONS OF THE AREA. THE ATLANTIC OCEAN... AN ATLANTIC OCEAN UPPER LEVEL TROUGH PASSES THROUGH 33N48W TO 25N62W AND 21N68W. THIS TROUGH SUPPORTS THE COLD FRONT THAT PASSES THROUGH 32N45W TO 24N60W 24N72W. A STATIONARY FRONT CONTINUES FROM 24N72W...TO THE FLORIDA ALONG 82W FROM 28N TO 29N. RAINSHOWERS ARE POSSIBLE WITHIN 60 NM ON EITHER SIDE OF THE LINE THAT PASSES THROUGH 32N44W 27N50W 23N60W 22N70W 26N77W 30N80W. SURFACE HIGH PRESSURE HAS DEVELOPED IN THE ATLANTIC OCEAN TO THE NORTH OF THE FRONTAL BOUNDARY. A 1008 MB LOW PRESSURE CENTER IS NEAR 24N38W. A TROUGH EXTENDS FROM THE LOW CENTER TO 17N43W. THE DEEP LAYER CYCLONIC FLOW THAT HAS BEEN IN THE EASTERN ATLANTIC OCEAN TO THE NORTH OF 17N TO THE EAST OF 40W DURING THE LAST FEW DAYS REMAINS...BUT IN A COMPARATIVELY WEAKER FORM. CYCLONIC FLOW NOW IS TO THE NORTH OF 20N TO THE EAST OF 30W. A COLD FRONT PASSES THROUGH 32N11W TO 28N20W... DISSIPATING AND CONTINUING TO 23N26W. RAINSHOWERS AND THUNDERSTORMS ARE OVER THE WATERS TO THE NORTH OF 25N TO THE EAST OF 20W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ MT