000 AXNT20 KNHC 292344 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 705 PM EST FRI JAN 29 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 2315 UTC. ...THE ITCZ... FROM SOUTHERN COASTAL LIBERIA NEAR 4N8W TO 3N20W 2N30W 1N40W... CROSSING THE EQUATOR ALONG 47W...INTO NORTHEASTERN BRAZIL NEAR 1S53W. ISOLATED MODERATE SHOWERS ARE TO THE SOUTH OF 5N TO THE EAST OF 40W...AND TO THE SOUTH OF 7N BETWEEN 40W AND 58W. ...DISCUSSION... THE GULF OF MEXICO... THE LATEST COLD FRONT HAS REACHED THE GULF WATERS...FROM THE LOUISIANA COAST NEAR 30N93W TO 26N95W TO THE MEXICO GULF COAST THAT IS NEAR 21N97W. GALE-FORCE WIND CONDITIONS ARE FORECAST TO DEVELOP DURING THE NEXT 18 HOURS TO 24 HOURS TO THE SOUTH OF 22N TO THE WEST OF THE COLD FRONT...AND SEA HEIGHTS RANGING FROM 8 FEET TO 12 FEET. UPPER LEVEL MOISTURE STREAMS FROM THE EASTERN PACIFIC OCEAN...FROM 10N106W TO THE MEXICO COAST NEAR 100W...INTO THE GULF OF MEXICO WITHIN 180 NM TO 240 NM ON EITHER SIDE OF THE LINE 20N97W 24N90W BEYOND 29N82W ON TOP OF FLORIDA. THE UPPER LEVEL TROUGH THAT IS SUPPORTING THIS FRONTAL BOUNDARY IS MOVING FROM SOUTHERN OKLAHOMA TO THE FAR WEST OF TEXAS. SHOWERS AND THUNDERSTORMS ARE WITHIN 20 NM TO 30 NM ON EITHER SIDE OF THE LINE FROM 26N93W BEYOND SOUTHEASTERN MISSISSIPPI. THE CARIBBEAN SEA... GALE-FORCE WIND CONDITIONS ARE BEING EXPERIENCED IN THE COLOMBIA COASTAL WATERS FROM 11N TO 14N BETWEEN 72W AND 77W...WITH SEA HEIGHTS RANGING FROM 12 FEET TO 16 FEET. THIS SITUATION IS EXPECTED TO CONTINUE FOR AT LEAST THE NEXT 18 HOURS. A REMNANT CLOUD LINE FROM AN ALREADY-DISSIPATED FRONTAL BOUNDARY...REMAINS ALONG 10N53W 10N61W...FROM COASTAL VENEZUELA TO THE PENINSULA DE LA GUAJIRA OF NORTHEASTERN COASTAL COLOMBIA. SHOWERS ARE POSSIBLE WITHIN 90 NM ON EITHER SIDE OF THIS LINE. THE ATLANTIC OCEAN... BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE ATLANTIC OCEAN TO THE NORTH OF 20N TO THE WEST OF 50W. SURFACE ANTICYCLONIC FLOW IS UNDER THIS HIGH LEVEL ANTICYCLONIC FLOW... AROUND A RIDGE FROM 27N52W TO A 1022 MB HIGH PRESSURE CENTER THAT IS NEAR 29N67W...TO THE FLORIDA EAST COAST NEAR 29N. AN UPPER LEVEL TROUGH SUPPORTS A COLD FRONT THAT PASSES THROUGH 32N73W TO SOUTHEASTERN GEORGIA. A DISSIPATING FRONTAL BOUNDARY IS ALONG 31N44W 24N44W 20N49W 19N55W. A REMNANT CLOUD LINE CONTINUES FROM 19N55W TO 21N65W TO NORTHERN COASTAL HAITI NEAR 20N73W. THE DYNAMICS OF THIS BOUNDARY ARE CHANGING SUCH THAT COMPARATIVELY COLDER AIR IS MOVING INTO THE AREA TO THE WEST OF THE BOUNDARY...GIVING IT MORE ENERGY AND A NEW COLD FRONT IS FORMING LITTLE BY LITTLE. THE PERSISTENT EAST-CENTRAL ATLANTIC OCEAN DEEP LAYER TROUGH CONTINUES TO PROVIDE ENERGY TO A 994 MB LOW PRESSURE CENTER THAT IS NEAR 32N31W. THE MAIN FRONTAL BOUNDARY THAT EMERGES FROM THE 994 MB LOW CENTER IS OCCLUDED FROM THE LOW CENTER TO 32N26W AND 31N23W...AND THEN COLD FROM 31N23W TO 26N24W AND 24N26W...AND THEN DISSIPATING COLD FROM 24N26W TO 22N31W AND 22N37W. A REMNANT CLOUD LINE FROM A FRONTAL BOUNDARY OF 24 HOURS AGO IS ALONG 28N20W 23N23W 19N30W 16N40W 16N46W. SHOWERS ARE MOST POSSIBLE TO THE NORTH OF 25N BETWEEN 20W AND 43W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE. $$ MT