000 AXNT20 KNHC 271034 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 805 AM EDT SUN APR 27 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1015 UTC. ...THE ITCZ... THE ITCZ AXIS IS CENTERED ALONG 8N13W 4N20W 1N30W...CROSSING THE EQUATOR NEAR 42W...AND INTO NE BRAZIL NEAR 1S45W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS ALONG THE COAST OF W AFRICA FROM 2N-5N BETWEEN 11W-14W. ISOLATED MODERATE CONVECTION IS FROM 3N-5N BETWEEN 24W-28W...AND FROM EQ-3N BETWEEN 40W-48W. ...DISCUSSION... GULF OF MEXICO... A 1022 MB HIGH IS CENTERED OFF THE COAST OF SOUTH CAROLINA NEAR 31N74W. A SURFACE RIDGE AXIS EXTENDS WSW FROM THIS HIGH TO S TEXAS NEAR 26N97W. 10-15 KT SELY SURFACE WINDS ARE NOTED OVER THE GULF OF MEXICO DUE TO RETURN FLOW. A STATIONARY FRONT IS INLAND OVER TEXAS AND LOUISIANA PRODUCING SCATTERED MODERATE CONVECTION OVER INLAND TEXAS. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS ALONG THE COAST OF NE MEXICO FROM 22N-25N BETWEEN 95W-98W. IN THE UPPER LEVELS...A RIDGE IS OVER THE GULF WITH AXIS ALONG 85W. SIGNIFICANT UPPER LEVEL MOISTURE AND BROKEN HIGH CLOUDS ARE OVER THE W GULF W OF A LINE FROM THE FLORIDA PANHANDLE TO THE BAY OF CAMPECHE. STRONG SUBSIDENCE IS OVER THE REMAINDER OF THE GULF. EXPECT... A COLD FRONT TO MOVE OFF THE COAST OF TEXAS WITH CONVECTION THIS EVENING. GALE FORCE WINDS WILL ALSO BE BEHIND THE FRONT. CARIBBEAN SEA... MODERATE TO FRESH TRADEWINDS ARE OVER THE CARIBBEAN SEA. BROKEN TO OVERCAST MULTILAYERED CLOUDS WITH SCATTERED SHOWERS ARE OVER THE E CARIBBEAN E OF 75W. MORE SCATTERED SHOWERS ARE OVER HISPANIOLA...AND THE COAST OF COSTA RICA. A 1006 MB LOW IS INLAND OVER N COLOMBIA NEAR 10N74W. WIDELY SCATTERED MODERATE CONVECTION IS FURTHER E NEAR LAKE MARACAIBO FROM 4N-10N BETWEEN 69W-75W. IN THE UPPER LEVELS ZONAL FLOW COVERS THE ENTIRE SEA. CONSIDERABLE UPPER LEVEL MOISTURE IS INLAND OVER SOUTH AMERICA W OF 62W. STRONG SUBSIDENCE COVERS THE ENTIRE CARIBBEAN. EXPECT SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OVER THE E CARIBBEAN E OF 80W DURING THE NEXT 24 HOURS. ATLANTIC OCEAN... A 1022 MB HIGH OFF THE COAST OF SOUTH CAROLINA IS PRODUCING FAIR WEATHER OVER FLORIDA AND THE NW ATLANTIC. A COLD FRONT IS OVER THE CENTRAL ATLANTIC FROM 32N42W TO 25N47W 20N58W. ISOLATED MODERATE CONVECTION IS WELL E OF THE FRONT FROM 28N TO BEYOND 32N BETWEEN 39W-44W. IN THE UPPER LEVELS...A TROUGH IS N OF 20N BETWEEN 50W-80W. A LARGE UPPER LEVEL RIDGE IS BETWEEN 25W-50W. AN UPPER LEVEL TROUGH IS N OF 15N AND E OF 25W TO THE COAST OF W AFRICA. IN THE TROPICS A LARGE UPPER LEVEL HIGH IS CENTERED NEAR 7N50W. EXPECT THE FRONT TO BECOME STATIONARY OVER THE CENTRAL ATLANTIC FOR THE NEXT 24 HOURS WITH LIGHT CONVECTION. $$ FORMOSA