000 AXNT20 KNHC 281106 CCA TWDAT TROPICAL WEATHER DISCUSSION...COR... NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 805 AM EDT TUE AUG 28 2007 ...CORRECTED DAY OF WEEK... 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 0930 UTC. ...TROPICAL WAVES... TROPICAL WAVE IS ALONG 37W/38W S OF 16W MOVING W NEAR 10 KT WITH A 1011 MB LOW ALONG THE WAVE NEAR 10N. BROAD LOW LEVEL INVERTED-V CURVATURE WITH CLUSTERS OF SCATTERED MODERATE/ ISOLATED STRONG CONVECTION FROM 9N-13N BETWEEN 34W-45W. TROPICAL WAVE IS ALONG 61W S OF 20N MOVING W 10-15 KT. THE INVERTED-V CURVATURE HAS SPREAD OVER THE PAST 6 HOURS AS THE WAVE MOVED INTO THE E CARIBBEAN. SCATTERED SHOWERS AND POSSIBLE ISOLATED THUNDERSTORMS ARE FROM 12N-22N BETWEEN 60W-65W. TROPICAL WAVE IS ALONG 83W S OF 21N MOVING W 10-15 KT. A LOW/MID LEVEL LOW ROTATION IS ALONG THE WAVE NEAR 13N BUT STILL NO INDICATION OF A SURFACE LOW. CLUSTERS OF SCATTERED MODERATE/ ISOLATED STRONG CONVECTION ARE FROM 12N-21N BETWEEN 79W-85W. TROPICAL WAVE IS ALONG 95W/96W S OF 22N MOVING W 10-15 KT. WELL DEFINED INVERTED-V CURVATURE IS OBSERVED IN THE E PACIFIC REGION. ASSOCIATED SHOWER ACTIVITY/CONVECTION IS INLAND OVER MEXICO AND IN THE E PACIFIC REGION. ...THE ITCZ... ITCZ AXIS IS CENTERED ALONG 12N15W 7N29W 7N46W 8N60W. IN ADDITION TO CONVECTION ASSOCIATED WITH THE TROPICAL WAVE... CLUSTERS OF SCATTERED MODERATE/ISOLATED STRONG CONVECTION ARE WITHIN 150 NM OF THE ITCZ AXIS E OF 26W TO INLAND OVER W AFRICA. CLUSTERS OF SCATTERED MODERATE CONVECTION ARE FROM 3N-9N BETWEEN 26W-52W. DISCUSSION... GULF OF MEXICO... BROAD UPPER RIDGE EXTENDS FROM NEAR TAMPICO MEXICO TO CENTRAL LOUISIANA COVERING THE W GULF W OF 89W GENERATING ENOUGH DIFFLUENCE TO ENHANCE SCATTERED SHOWERS/THUNDERSTORMS OVER THE NW GULF N OF 22N W OF 89W. AN UPPER HIGH IS INLAND OVER E GEORGIA COVERING THE NE GULF GENERATING ISOLATED SHOWERS/ THUNDERSTORMS ALONG THE N GULF COAST N OF 27N W OF PENSACOLA FLORIDA. THE UPPER LOW IN THE W CARIBBEAN CLIPS THE SE GULF WITH ISOLATED SHOWERS IN THE STRAITS OF FLORIDA AND YUCATAN CHANNEL. CARIBBEAN SEA... AN UPPER LOW IS IN THE W CARIBBEAN NEAR 18N87W COVERING THE AREA W OF 82W FROM CENTRAL AMERICA TO OVER CUBA AND THE YUCATAN CHANNEL ISOLATED SHOWERS/THUNDERSTORMS W OF 84W AND ENHANCING CONVECTION ASSOCIATED WITH THE TROPICAL WAVE ALONG 83W. A BROAD UPPER HIGH IS LOCATED IN THE E CARIBBEAN NEAR 15N69W AND COVERS THE REMAINDER OF THE CARIBBEAN. EMBEDDED WITHIN THE UPPER RIDGE IS A LOW/MID LEVEL LOW ASSOCIATED WITH THE TROPICAL WAVE ALONG 83W. ATLANTIC OCEAN... AN UPPER HIGH IS JUST INLAND OVER E GEORGIA WITH AN UPPER RIDGE EXTENDING NE OUT OF THE REGION. AN UPPER LOW IS IN THE W/CENTRAL ATLC NEAR 27N63W EXTENDING AN UPPER TROUGH W TO THE BAHAMAS NEAR 26N77W AND DIPPING S OVER THE E CUBA AND HISPANIOLA GENERATING SCATTERED SHOWERS/THUNDERSTORMS FROM 18N-22N BETWEEN 72W-77W. A REMNANT SURFACE TROUGH EXTENDS FROM 30N57W SW TO 24N68W SCATTERED SHOWERS/ISOLATED THUNDERSTORMS WITHIN 150/180 NM OF THE SURFACE TROUGH. A DEEP LAYERED TROUGH IS PUSHING S INTO THE E/CENTRAL ATLC N OF 28N FROM 24W-45W WITH THE ASSOCIATED COLD FRONT N OF THE REGION. A PREFRONTAL TROUGH EXTENDS OVER THE REGION FROM 31N37W TO 26N47W WITH ISOLATED SHOWERS/THUNDERSTORMS WITHIN 75 NM OF THE SURFACE TROUGH. A BROAD UPPER HIGH IS ANCHORED IN THE CENTRAL ATLC NEAR 22N52W WITH DRY STABLE AIR COVERING THE ATLC E OF 55W AND COUPLED WITH A WEAK SURFACE RIDGE COVERING THE ATLC GIVES THE REMAINDER OF THE ATLC FAIR WEATHER CLOUDS WITH LIGHT TO MODERATE TRADE WINDS. $$ WALLACE