000 AXNT20 KNHC 041051 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 805 AM EDT TUE JUL 04 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...WEATHER OBSERVATIONS...RADAR... AND METEOROLOGICAL ANALYSIS. BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1045 UTC. ...TROPICAL WAVES... E ATLC TROPICAL WAVE IS ALONG 26W S OF THE CAPE VERDES MOVING W 10 KT. A BROAD SURFACE CIRCULATION IS NOTED. CONVECTION HAS DISSIPATED WITH THE WAVE WITH ONLY ISOLATED SHOWERS REMAINING FROM 8N-15N BETWEEN 20W-30W. CENTRAL ATLC TROPICAL WAVE IS ALONG 40W/41W MOVING W 15-20 KT. WEAK TURNING IS NOTED IN THE ITCZ ALONG THE WAVE AXIS. THE GFS FORECASTS THIS WAVE TO ENTER THE E CARIBBEAN LATE THU WITH ANY SIGNIFICANT WEATHER S OF 15N. SCATTERED MODERATE CONVECTION IS FROM 5N-8N BETWEEN 37W-45W. WELL-DEFINED TROPICAL WAVE IS IN THE LESSER ANTILLES ALONG 66W S OF 19N MOVING W 15 KT. SCATTERED SHOWERS COVER THE LESSER ANTILLES AND ASSOCIATED COASTAL WATERS FROM 10N-17N BETWEEN 58W-64W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS INLAND OVER VENEZUELA FROM 7N-10N BETWEEN 64W-68W. STRONG SW SHEAR SHOULD PREVENT ANY FURTHER DEVELOPMENT. BEST CHANCE OF RAIN SHOULD IMPACT PUERTO RICO MIDDAY TUE WITH A SURGE IN TRADES BEHIND THE WAVE. LOW-AMPLITUDE TROPICAL WAVE IS ALONG 81W/82W S OF 11N IN THE CARIBBEAN SEA MOVING W 15-20 KT. TSTMS OVER COLOMBIA MIGHT BE RELATED TO THE WEAK WAVE. SCATTERED MODERATE TO STRONG CONVECTION IS FROM 3N-9N BETWEEN 74W-80W. ...ITCZ... ITCZ AXIS IS CENTERED ALONG 13N16W 7N40W 6N50W 9N60W. SCATTERED MODERATE CONVECTION IS WITHIN 90 NM OF THE AXIS BETWEEN 33W-48W. ...DISCUSSION... GULF OF MEXICO... BROAD SURFACE RIDGING COVERS THE ENTIRE GULF OF MEXICO. 10-15 KT ELY FLOW IS NOTED. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION PERSISTS OVER THE BAY OF CAMPECHE FROM 17N-20N BETWEEN 92W-94W. WIDELY SCATTERED MODERATE CONVECTION IS OVER S TEXAS FROM 25W-28W BETWEEN 97W-99W. IN THE UPPER LEVELS...A SMALL CYCLONIC CIRCULATION IS INLAND OVER W TEXAS NEAR 32N100W. CYCLONIC FLOW IS WITHIN 240 NM RADIUS OF THE CENTER. A RIDGE IS OVER THE GULF OF MEXICO WITH AXIS ALONG 92W PRODUCING ANTICYCLONIC FLOW WITH UPPER LEVEL MOISTURE AND BROKEN TO OVERCAST HIGH CLOUDS W OF 85W. EXPECT MORE AFTERNOON AND EVENING AIRMASS CONVECTION OVER THE ENTIRE GULF OF MEXICO...ESPECIALLY OVER TEXAS AND THE W GULF...TOMORROW. CARIBBEAN SEA... SURFACE TRADEWINDS DOMINATE THE ENTIRE CARIBBEAN SEA. 25 KT - 30 KT WINDS ARE NOTED IN THE CENTRAL CARIBBEAN N OF COLOMBIA FROM 11N-15N BETWEEN 70W-78W. A TROPICAL WAVE IS OVER PANAMA. ANOTHER TROPICAL WAVE IS OVER THE LESSER ANTILLES. SEE ABOVE. ELSEWHERE...ISOLATED MODERATE CONVECTION REMAINS OVER SE CUBA AND HISPANIOLA FROM 17N-20N BETWEEN 70W-77W. IN THE UPPER LEVELS... AN ANTICYCLONIC CIRCULATION IS CENTERED OVER THE YUCATAN PENINSULA NW NEAR 20N92W. ANTICYCLONIC FLOW IS W OF 80W. THE BASE OF AN UPPER LEVEL TROUGH IS OVER THE CENTRAL CARIBBEAN BETWEEN 70W-80W. ANOTHER ANTICYCLONIC CIRCULATION IS OVER THE E CARIBBEAN CENTERED NEAR 10N65W. EXPECT THE TROPICAL WAVES TO MOVE W. ALSO EXPECT AIRMASS CONVECTION OVER CUBA AND CENTRAL AMERICA DURING THE NEXT 24 HOURS. ATLANTIC OCEAN... THE DOMINATING SURFACE FEATURE IN THE ATLANTIC IS 1032 HIGH OVER THE CENTRAL ATLANTIC NEAR 37N38W. RELATIVELY LIGHT ELY FLOW WITH FAIR WEATHER IS FROM 20N-30N BETWEEN 10W-68W. EARLIER VISIBLE SATELLITE IMAGERY SHOWED AFRICAN DUST E OF 55W TO THE AFRICAN COAST BEHIND THE TROPICAL WAVE AT 66W. IN THE UPPER LEVELS... A CYCLONIC CIRCULATION IS OVER THE W ATLANTIC NEAR 27N78W. CYCLONIC FLOW IS N OF 20N W OF 72W. RIDGING IS N OF 20N BETWEEN 65W-72W WITH CONSIDERABLE MOISTURE. ISOLATED MODERATE CONVECTION IS OVER THE BAHAMAS FROM 21N-27N BETWEEN 70W-77W. A LARGE CYCLONIC CIRCULATION IS CENTERED OVER THE CENTRAL ATLANTIC NEAR 30N46W. CYCLONIC FLOW IS N OF 18N BETWEEN 38W-58W. A RIDGE IS OVER THE E ATLANTIC N OF 15N AND E OF 38W. $$ FORMOSA