000 AXNT20 KNHC 140009 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 805 PM EDT WED SEP 13 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 2315 UTC. ...SPECIAL FEATURES... THE CENTER OF HURRICANE GORDON AT 13/2100 UTC IS NEAR 27.0N 57.5W. GORDON IS MOVING NORTH 10 KT. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 965 MB. THE MAXIMUM SUSTAINED WIND SPEEDS ARE 95 KT WITH GUSTS TO 115 KT. PLEASE READ THE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMAT2/WTNT22 KNHC AND THE PUBLIC ADVISORY MIATCPAT2/WTNT32 KNHC FOR MORE DETAILS. GORDON HAS A 20 NM DIAMETER EYE. CONVECTION IS CONFINED TO AROUND THE CENTER. SCATTERED MODERATE TO STRONG CONVECTION IS FROM 26N-29N BETWEEN 54W-60W. THE CENTER OF TROPICAL DEPRESSION EIGHT AT 13/2100 UTC IS NEAR 12.7N 30.7W. THE DEPRESSION IS MOVING WEST AT 16 KT. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1007 MB. THE MAXIMUM SUSTAINED WIND SPEEDS ARE 30 KT WITH GUSTS TO 40 KT. PLEASE READ THE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMAT3/WTNT23 KNHC AND THE PUBLIC ADVISORY MIATCPAT3/WTNT33 KNHC FOR MORE DETAILS. A STRONG BAND IS W AND N OF THE CENTER. SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 90 NM EITHER SIDE OF THE LINE 15N31W 14N33W 11N33W. A BAND S OF THE CENTER HAS SCATTERED MODERATE TO ISOLATED STRONG CONVECTION FROM 8N-9N BETWEEN 31W-34W. ...TROPICAL WAVES... AN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 44W SOUTH OF 13N MOVING WEST 10 TO 15 KT. ISOLATED MODERATE CONVECTION IS FROM 7N-10N BETWEEN 43W-47W. AN ATLANTIC OCEAN TROPICAL WAVE IS ALONG 52W SOUTH OF 14N MOVING WEST 10 TO 15 KT. ISOLATED MODERATE CONVECTION IS FROM 10N-13N BETWEEN 51W-54W. AN E CARIBBEAN TROPICAL WAVE IS ALONG 60W/61W SOUTH OF 18N MOVING WEST 10 TO 15 KT. THIS WAVE IS WELL-DEFINED IN THE LOW CLOUD FIELD ON SATELLITE IMAGERY. SCATTERED MODERATE CONVECTION IS IN PATCHES FROM 12N-20N BETWEEN 57W-63W. A CENTRAL CARIBBEAN SEA TROPICAL WAVE IS ALONG 72W SOUTH OF 17N MOVING WEST NEAR 15 KT. LOW LEVEL CYCLONIC TURNING IS NOTED S OF 20N. SCATTERED MODERATE CONVECTION IS OVER HISPANIOLA FROM 18N-20N BETWEEN 71W-72W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS OVER N COLOMBIA FROM 9N-12N BETWEEN 72W-75W. ...THE ITCZ... ITCZ IS CENTERED ALONG 16N16W 12N30W 8N40W 8N50W 12N60W. SCATTERED MODERATE TO STRONG CONVECTION IS ALONG THE COAST OF W AFRICA FROM 12N-19N BETWEEN 12W-18W. ...DISCUSSION... THE GULF OF MEXICO... A 1008 MB LOW IS CENTERED OVER THE FLORIDA PANHANDLE NEAR 31N85W. A COLD FRONT EXTENDS SW TO S TEXAS ALONG 28N90W 26N97W. WINDS ARE 5-10 KT ON BOTH SIDES OF THE FRONT. SCATTERED MODERATE CONVECTION IS OVER N FLORIDA FROM 30N-31N BETWEEN 83W-85W. SCATTERED MODERATE CONVECTION IS OVER CENTRAL FLORIDA FROM 26N-29N BETWEEN 81W-84W. ISOLATED MODERATE CONVECTION IS OVER THE N GULF OF MEXICO FROM 24N-27N BETWEEN 84W-98W. IN THE UPPER LEVELS...AN UPPER LEVEL RIDGE CONTINUES FROM NORTHEASTERN MEXICO ACROSS THE NORTHERN GULF COAST WATERS...ACROSS NORTHERN FLORIDA AND SOUTHEASTERN GEORGIA...INTO THE ATLANTIC OCEAN. AN EMBEDDED UPPER LEVEL LOW IS OVER THE BAY OF CAMPECHE NEAR 20N96W. EXPECT THE COLD FRONT TO DIP TO CENTRAL FLORIDA WITH CONTINUED CONVECTION WITHIN THE NEXT 24 HOURS. THE CARIBBEAN SEA... TWO TROPICAL WAVES ARE TRAVERSING THE CARIBBEAN SEA... SEE ABOVE. AN ITCZ ALSO EXTENDS FROM THE WINDWARD ISLANDS TO PANAMA ALONG 12N60W 9N80W. PATCHES OF SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS ALONG THE ITCZ TO INCLUDE N VENEZUELA... N COLOMBIA... AND PANAMA. SCATTERED SHOWERS REMAIN OVER CUBA... AND INLAND CENTRAL AMERICA FROM 13N-20N BETWEEN 86W-93W. IN THE UPPER LEVELS...AN UPPER LEVEL LOW IS CENTERED OVER HISPANIOLA NEAR 18N72W. NLY FLOW IS W OF 77W...WHILE SLY FLOW IS E OF 70W. EXPECT THE TROPICAL WAVES TO MOVE W WITH CONVECTION DURING THE NEXT 24 HOURS. THE ATLANTIC OCEAN... A 1011 MB LOW IS E OF THE BAHAMAS NEAR 27N73W. ISOLATED MODERATE CONVECTION IS FROM 27N-30N BETWEEN 69W-72W. HURRICANE GORDON IS FURTHER E MOVING N...SEE ABOVE. A DOMINATE 1027 MB HIGH IS SW OF THE AZORES NEAR 35N33W. IN THE UPPER LEVELS... A RIDGE IS OVER THE W ATLANTIC W OF 70W. A TROUGH IS BETWEEN 60W-70W. GOOD UPPER LEVEL OUTFLOW IS OVER HURRICANE GORDON. AN UPPER LOW IS CENTERED NEAR 32N44W. CYCLONIC FLOW IS N OF 20N BETWEEN 40W-50W. AN UPPER HIGH IS OVER THE E ATLANTIC NEAR 27N30W. T.D. EIGHT ALSO HAS FAIRLY GOOD UPPER LEVEL OUT FLOW. $$ FORMOSA