000 AXNT20 KNHC 251732 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 105 PM EST THU FEB 25 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1715 UTC. ...THE ITCZ... FROM NORTHERN COASTAL LIBERIA NEAR 7N11W TO 4N21W TO 2N30W... CROSSING THE EQUATOR ALONG 37W...INTO NORTHEASTERN BRAZIL NEAR 2S50W. ISOLATED MODERATE SHOWERS ARE FROM THE EQUATOR TO 7N BETWEEN 10W AND 23W. ...DISCUSSION... WITH THE COLD FRONT THAT EXTENDS FROM THE WESTERN ATLANTIC OCEAN...ACROSS THE BAHAMAS AND SOUTHEASTERN CUBA...INTO THE CARIBBEAN SEA TO NORTH CENTRAL NICARAGUA... DEEP LAYER CYCLONIC FLOW COVERS THE AREA TO THE NORTH OF 25N BETWEEN 70W AND 90W. UPPER LEVEL SOUTHWESTERLY WIND FLOW MOVES FROM THE EASTERN PACIFIC OCEAN...THROUGH 16N110W ACROSS MEXICO THROUGH 21N110W...INTO THE CENTRAL GULF OF MEXICO...ACROSS SOUTH FLORIDA AND LAKE OKEECHOBEE BEYOND 32N72W. WIND SPEEDS WITHIN 180 NM ON EITHER SIDE OF THIS LINE RANGE FROM 80 KT TO 100 KT. THE UPPER LEVEL SOUTHWESTERLY FLOW GRADUALLY MIXES WITH THE PURELY CYCLONIC FLOW NEAR 25N85W. THE TROUGH THAT IS RESPONSIBLE FOR THE CYCLONIC FLOW SUPPORTS A COLD FRONT THAT PASSES THROUGH 32N72W IN THE WESTERN ATLANTIC OCEAN...TO 26N73W...ACROSS THE BAHAMAS NEAR 23N75W...ACROSS SOUTHEASTERN CUBA...INTO THE CARIBBEAN SEA JUST TO THE WEST OF JAMAICA INTO NORTH CENTRAL NICARAGUA. SHOWERS AND POSSIBLE THUNDERSTORMS ARE WITHIN 30 NM TO 45 NM ON EITHER SIDE OF 26N67W 25N70W 22N72W TO 17N76W...AND ALONG THE COASTS OF PANAMA AND COSTA RICA AND NICARAGUA BETWEEN 82W AND 84W. SURFACE HIGH PRESSURE COVERS THE GULF OF MEXICO FROM CENTRAL LOUISIANA TO THE ISTHMUS OF TEHUANTEPEC. NORTHERLY SURFACE WINDS COVER THE GULF OF MEXICO...THE CARIBBEAN SEA... AND THE ATLANTIC OCEAN TO THE WEST OF THE COLD FRONT. THE REST OF THE CARIBBEAN SEA... MIDDLE LEVEL TO UPPER LEVEL CYCLONIC FLOW COVERS COLOMBIA FROM 5N TO 10N BETWEEN 73W AND 78W. STRONG SHOWERS AND THUNDERSTORMS THAT WERE WITHIN A 45 NM RADIUS OF 8N75W ABOUT SIX HOURS AGO HAVE DISSIPATED DURING THE LAST SIX HOURS. STRONG SHOWERS AND THUNDERSTORMS HAVE DEVELOPED JUST OFF THE COLOMBIA COAST WITHIN A 30 NM TO 45 NM RADIUS OF 10N76W. A SURFACE TROUGH REACHES 16N64W IN THE EASTERN CARIBBEAN SEA FROM THE ATLANTIC OCEAN... FROM A 1008 MB LOW PRESSURE CENTER THAT IS NEAR 24N50W TO 20N54W TO 17N60W TO 16N64W. THIS TROUGH IS MARKED BY A WELL-DEFINED LINE OF CLOUDS ON VISIBLE SATELLITE IMAGERY. BROAD UPPER LEVEL ANTICYCLONIC FLOW COVERS THE AREA. THE REST OF THE ATLANTIC OCEAN... A DEEP LAYER EAST CENTRAL ATLANTIC OCEAN TROUGH SUPPORTS THE SURFACE TROUGH THAT IS ALONG 31N52W...TO THE 1008 MB LOW PRESSURE CENTER THAT IS NEAR 24N50W...TO 20N54W TO 17N60W TO 16N64W IN THE CARIBBEAN SEA. BROAD SURFACE LOW PRESSURE COVERS THE AREA TO THE NORTH OF 15N BETWEEN 30W AND 55W. THE TROUGH ON WATER VAPOR IMAGERY PASSES THROUGH 31N45W TO 26N38W TO 22N34W. SURFACE ANTICYCLONIC FLOW IS ALONG A RIDGE THAT EXTENDS FROM A 1020 MB HIGH PRESSURE CENTER THAT IS NEAR 30N13W TO 24N22W TO 19N36W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ MT