000 AXNT20 KNHC 282304 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 705 PM EST TUE NOV 28 2006 TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA... CENTRAL AMERICA...THE GULF OF MEXICO...THE CARIBBEAN SEA... NORTHEASTERN 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 AXIS IS CENTERED ALONG 8N11W 6N30W 3N53W. ISOLATED MODERATE CONVECTION IS FROM 4N-8N BETWEEN 17W-26W. WIDELY SCATTERED MODERATE CONVECTION IS FROM 2N-11N BETWEEN 26W-40W... AND FROM 3N-8N BETWEEN 40W-50W. ...DISCUSSION... THE GULF OF MEXICO... A 1028 MB HIGH IS CENTERED OFF THE COAST OF NORTH CAROLINA NEAR 36N72W. A RIDGE AXIS EXTENDS SW TO THE SW GULF OF MEXICO NEAR 22N97W. E TO SE 10-15 KT SURFACE FLOW IS NOTED. PATCHES OF BROKEN TO OVERCAST LOW CLOUDS WITH ISOLATED SHOWERS DOTS THE GULF OF MEXICO AND FLORIDA. IN THE UPPER LEVELS... AN UPPER LEVEL HIGH IS CENTERED OVER S FLORIDA NEAR 26N82W. STRONG SUBSIDENCE COVERS THE ENTIRE GULF. JETSTREAM WITH MOISTURE EXTENDS FROM CENTRAL MEXICO TO LOUISIANA WITHIN 90 NM OF THE LINE 18N103W 32N91W. EXPECT LITTLE CHANGE IN THE WEATHER OVER THE NEXT 24 HOURS. THE CARIBBEAN SEA... MODERATE TRADEWINDS TRAVERSES THE CARIBBEAN SEA. SCATTERED MODERATE CONVECTION IS OVER THE SW CARIBBEAN SEA FROM 10N-13N BETWEEN 80W-85W. SIMILAR CONVECTION IS OVER N COLOMBIA FROM 10N-12N BETWEEN 73W-75W. BROKEN LOW CLOUDS WITH SCATTERED SHOWERS ARE OVER HISPANIOLA. SAN JUAN RADAR ALSO SHOWS SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OVER PUERTO RICO FROM 15N-19N BETWEEN 64W-68W. IN THE UPPER LEVELS...A SMALL UPPER LEVEL LOW IS CENTERED OVER HISPANIOLA NEAR 19N71W. CYCLONIC FLOW AND STRONG SUBSIDENCE IS WITHIN 200 NM OF THE CENTER. WLY UPPER LEVEL FLOW IS OVER THE MAJORITY OF THE CARIBBEAN SEA S OF 16N BETWEEN 60W-83W. EXPECT TROPICAL SHOWERS OVER THE SRN CARIBBEAN...NRN SOUTH AMERICA...AND CENTRAL AMERICA... S OF 15N DURING THE NEXT 24 HOURS. THE ATLANTIC OCEAN... A 1028 MB HIGH IS CENTERED OFF THE COAST OF NORTH CAROLINA NEAR 36N72W. A 996 MB GALE LOW IS JUST N OF THE AREA NEAR 36N42W. A COLD FRONT EXTENDS SW ALONG 32N41W 24N50W 20N60W. A DISSIPATING COLD FRONT CONTINUES SW TO PUERTO RICO NEAR 18N66W. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE WITHIN 180 NM E OF THE FRONTS. A 1028 MB HIGH IS OFF THE COAST OF PORTUGAL NEAR 39N15W. A RIDGE AXIS EXTENDS S TO 22N30W. IN THE UPPER LEVELS... ANTICYCLONIC FLOW IS OVER THE W ATLANTIC N OF 18N W OF 70W DUE TO THE UPPER LEVEL HIGH CENTERED OVER S FLORIDA. AN UPPER LEVEL TROUGH IS OVER THE W ATLANTIC N OF 20N BETWEEN 55W-70W. A BROAD RIDGE IS N OF 20N BETWEEN 20W-55W. WLY FLOW IS OVER THE TROPICAL ATLANTIC FROM 5N-18N BETWEEN 10W-60W. $$ FORMOSA