000 AXNT20 KNHC 080005 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 705 PM EST MON JAN 07 2008 TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL AMERICA...THE GULF OF MEXICO...THE CARIBBEAN SEA...NORTHERN 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 2315 UTC. ...THE ITCZ... THE ITCZ IS CENTERED ALONG 5N3W 4N10W 3N30W EQ40W 2S50W. SCATTERED MODERATE CONVECTION IS OFF THE COAST OF W AFRICA FROM 2N-4N BETWEEN 2W-5W. SCATTERED MODERATE CONVECTION IS ALSO FROM 2N-4N BETWEEN 16W-20W...FROM 2N-4N BETWEEN 22W-30W...AND FROM 1N-3N BETWEEN 33W-39W. ...DISCUSSION... THE GULF OF MEXICO... A 1030 MB HIGH IS CENTERED OFF THE COAST OF NORTH CAROLINA NEAR 33N875W PRODUCING 10-20 KT SELY RETURN FLOW OVER THE GULF OF MEXICO. MOSTLY FAIR WEATHER PREVAILS EXCEPT ALONG THE COASTS OF TEXAS AND LOUISIANA WHERE BROKEN LOW CLOUDS ARE NOTED. IN THE UPPER LEVELS...A RIDGE IS OVER THE GULF WITH AXIS ALONG 80W. SWLY UPPER LEVEL FLOW COVERS THE ENTIRE GULF. STRONG SUBSIDENCE COVERS THE ENTIRE GULF. EXPECT A COLD FRONT TO BE OVER THE EXTREME NW GULF IN 24 HOURS WITH CONVECTION. THE CARIBBEAN SEA... MODERATE TRADEWINDS ARE OVER THE ENTIRE CARIBBEAN SEA WITH PATCHES OF BROKEN LOW CLOUDS AND SCATTERED SHOWERS OVER CENTRAL AMERICA FROM PANAMA TO BELIZE...AND OVER HISPANIOLA. IN THE UPPER LEVELS...WLY FLOW COVERS THE ENTIRE CARIBBEAN SEA WITH STRONG SUBSIDENCE. EXPECT...LITTLE CHANGE OVER THE NEXT 24 HOURS. THE ATLANTIC OCEAN... A SURFACE TROUGH IS OVER THE CENTRAL ATLANTIC ALONG 30N35W 22N50W 20N64W. BROKEN LOW CLOUDS ARE WITHIN 90 NM OF THE TROUGH. SCATTERED SHOWERS ARE ALONG THE TROUGH E OF 50W. IN THE UPPER LEVELS...A RIDGE IS OVER THE W ATLANTIC N OF 20N W OF 70W. A TROUGH IS OVER THE CENTRAL ATLANTIC N OF 20N BETWEEN 45W-70W. A BROAD RIDGE IS OVER THE E ATLANTIC N OF 20N BETWEEN 20W-45W. EXPECT...THE SURFACE TROUGH TO DISSIPATE OVER THE NEXT 24 HOURS. $$ FORMOSA