000 AXNT20 KNHC 261044 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 805 AM EDT SAT APR 26 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 7N11W 3N20W 2N30W ...CROSSING THE EQUATOR NEAR 47W...AND INTO NE BRAZIL NEAR 1S50W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS OFF THE COAST OF W AFRICA FROM 5N-7N BETWEEN 14W-16W. WIDELY SCATTERED MODERATE CONVECTION IS FROM 2N-4N BETWEEN 29W-40W. SCATTERED MODERATE CONVECTION IS FROM EQ-1N BETWEEN 46W-50W. ...DISCUSSION... GULF OF MEXICO... A 1020 MB HIGH IS CENTERED OFF THE COAST OF SOUTH CAROLINA NEAR 32N76W. A SURFACE RIDGE AXIS EXTENDS WSW TO S TEXAS NEAR 29N93W. 10-15 KT SELY SURFACE WINDS ARE NOTED OVER THE GULF OF MEXICO DUE TO RETURN FLOW. A COLD FRONT IS INLAND OVER TEXAS PRODUCING SCATTERED MODERATE CONVECTION FROM 28N-32N BETWEEN 94W-100W. IN THE UPPER LEVELS...A RIDGE IS OVER THE GULF WITH AXIS ALONG 90W. SIGNIFICANT UPPER LEVEL MOISTURE AND BROKEN HIGH CLOUDS ARE OVER THE NW GULF N OF 24N AND W OF 92W. STRONG SUBSIDENCE IS OVER THE REMAINDER OF THE GULF. EXPECT... SELY SURFACE RETURN FLOW WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OVER THE W GULF W OF 90W DURING THE NEXT 24 HOURS. EXPECT THE COLD FRONT TO GET A SECONDARY PUSH AND BE ALONG THE TEXAS COAST SUNDAY EVENING WITH CONVECTION. CARIBBEAN SEA... MODERATE TO FRESH TRADEWINDS ARE OVER THE CARIBBEAN SEA WITH MOSTLY FAIR WEATHER W OF 75W. BROKEN TO OVERCAST MULTILAYERED CLOUDS WITH SCATTERED SHOWERS ARE OVER THE E CARIBBEAN E OF 72W. A 1008 MB LOW IS INLAND OVER N COLOMBIA NEAR 10N75W. WIDELY SCATTERED MODERATE CONVECTION IS FURTHER E NEAR LAKE MARACAIBO FROM 9N-12N BETWEEN 70W-73W. IN THE UPPER LEVELS ZONAL FLOW COVERS THE ENTIRE SEA. CONSIDERABLE UPPER LEVEL MOISTURE IS OVER THE E CARIBBEAN E OF A LINE FROM N COLOMBIA NEAR 10N76W TO GUADELOUPE NEAR 16N62W. STRONG SUBSIDENCE COVERS THE REMAINDER OF THE SEA AND CENTRAL AMERICA. EXPECT SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OVER THE E CARIBBEAN E OF 75W DURING THE NEXT 24 HOURS. ATLANTIC OCEAN... A 1020 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 32N51W TO 24N58W. A SURFACE TROUGH CONTINUES SW TO 20N63W. WIDELY SCATTERED MODERATE CONVECTION IS WELL E OF THE TROUGH FROM 29N TO BEYOND 32N BETWEEN 43W-48W. IN THE UPPER LEVELS...A TROUGH IS N OF 20N BETWEEN 55W-80W. A LARGE UPPER LEVEL RIDGE IS BETWEEN 30W-55W. AN UPPER LEVEL TROUGH IS N OF 15N AND E OF 30W TO THE COAST OF W AFRICA. IN THE TROPICS A LARGE UPPER LEVEL HIGH IS CENTERED NEAR 8N51W. EXPECT THE SURFACE TROUGH TO CONTINUE MOVING E FOR THE NEXT 24 HOURS WITH LIGHT CONVECTION. $$ FORMOSA