000 ABNT30 KNHC 011333 TWSAT MONTHLY TROPICAL WEATHER SUMMARY NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 8 AM EST MON NOV 1 2004 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... ...SUMMARY OF ATLANTIC TROPICAL CYCLONES FOR OCTOBER 2004... NOTE...SOME OF THE ESTIMATES OF WIND SPEEDS CONTAINED IN THIS REPORT ARE SUBJECT TO CHANGE...PENDING A POST-ANALYSIS OF ALL AVAILABLE DATA. TROPICAL STORM MATTHEW AND SUBTROPICAL STORM NICOLE...FORMED DURING OCTOBER. ALSO...HURRICANE LISA...WHICH DEVELOPED IN SEPTEMBER... REMAINED OVER THE OPEN NORTHERN ATLANTIC OCEAN DURING OCTOBER. ON 1 OCTOBER...LISA WAS MOVING NORTHWARD AS A STRONG TROPICAL STORM LOCATED ABOUT 1000 MILES WEST-SOUTHWEST OF THE NORTHERN AZORES ISLANDS. LATER THAT DAY...LISA TURNED NORTHEASTWARD AHEAD OF A STRONG UPPER-LEVEL TROUGH AND STRENGTHENED. THE CYCLONE BRIEFLY REACHED MINIMAL HURRICANE INTENSITY EARLY ON 2 OCTOBER BEFORE WEAKENING BACK TO A TROPICAL STORM LATER THAT AFTERNOON DUE TO VERY COLD WATERS AND INCREASING VERTICAL SHEAR. LISA BECAME EXTRATROPICAL EARLY ON 3 OCTOBER ABOUT 300 MILES NORTH-NORTHWEST OF THE NORTHERN AZORES ISLANDS...AND WAS ABSORBED BY A LARGER EXTRATROPICAL LOW PRESSURE SYSTEM SHORTLY THEREAFTER. TROPICAL STORM MATTHEW ORIGINATED FROM A TROPICAL WAVE THAT INTERACTED WITH AN UPPER-LEVEL TROUGH OVER THE SOUTHWESTERN GULF OF MEXICO FOR SEVERAL DAYS BEFORE FORMING INTO A DEPRESSION ON 8 OCTOBER ABOUT 180 MILES SOUTHEAST OF BROWNSVILLE TEXAS. THE DEPRESSION STRENGTHENED INTO A TROPICAL STORM LATER THAT DAY...AND THERE WERE ONLY MINOR FLUCTUATIONS IN STRENGTH THEREAFTER. INITIALLY THE CYCLONE MOVED EAST TO EAST-NORTHEASTWARD..BUT THEN GRADUALLY TURNED TO THE NORTHEAST AND NORTH...STEERED BY A LARGE MID- TO UPPER-LEVEL LOW OVER TEXAS. MATTHEW CROSSED THE SOUTH-CENTRAL LOUISIANA COAST NEAR COCODRIE EARLY ON 10 OCTOBER AND WEAKENED TO A TROPICAL DEPRESSION SHORTLY AFTER MOVING INLAND. MATTHEW THEN TURNED NORTHWARD AND CROSSED OVER SOUTHWESTERN MISSISSIPPI BEFORE DISSIPATING OVER EXTREME SOUTHEASTERN ARKANSAS ON 11 OCTOBER. CONSIDERABLE INLAND FRESHWATER FLOODING OCCURRED ACROSS MUCH OF SOUTHEASTERN LOUISIANA DUE TO HEAVY RAINFALL THAT EXCEEDED 10 INCHES IN MANY LOCATIONS. ALTHOUGH MATTHEW WAS ONLY A MINIMAL TROPICAL STORM...ITS BROAD CIRCULATION STILL PUSHED UP TO 3 FEET OF STORM SURGE INTO PORTIONS OF LAKE PONTCHARTRAIN AND SURROUNDING AREAS OF SOUTHEASTERN LOUISIANA. NICOLE WAS A SHORT-LIVED SUBTROPICAL CYCLONE THAT DEVELOPED FROM AN EXTRATROPICAL LOW PRESSURE SYSTEM WITH GALE FORCE WINDS. THE LOW MEANDERED NEAR BERMUDA FOR A COUPLE OF DAYS...BEFORE ACQUIRING ENOUGH THUNDERSTORM ACTIVITY TO BE DECLARED A SUBTROPICAL STORM EARLY ON 10 OCTOBER ABOUT 100 MILES SOUTHWEST OF BERMUDA. LITTLE CHANGE IN INTENSITY OCCURRED AS NICOLE MOVED SLOWLY NORTHWARD AND THEN NORTHEASTWARD...PASSING ABOUT 50 MILES NORTHWEST OF BERMUDA LATE ON 10 OCTOBER. BY EARLY ON 11 OCTOBER...NICOLE CAME UNDER THE INFLUENCE OF A STRONG UPPER-LEVEL TROUGH APPROACHING FROM THE WEST AND ACCELERATED NORTHEASTWARD. THE SUBTROPICAL STORM WAS ABSORBED LATER THAT DAY BY A LARGER EXTRATROPICAL LOW WHILE LOCATED ABOUT 345 MILES SOUTH-SOUTHWEST OF HALIFAX NOVA SCOTIA. SUMMARY TABLE - OCTOBER 2004 (PRELIMINARY STATISTICS) NAME DATES MAX WIND DEATHS U.S. DAMAGE (MPH) ($MILLIONS) ------------------------------------------------------------- H LISA 19 SEP - 3 OCT 75 TS MATTHEW 8-10 OCT 45 N/A STS NICOLE 10-11 OCT 50 ------------------------------------------------------------- N/A = NOT AVAILABLE FORECASTER STEWART/LAWRENCE/FRANKLIN/BEVEN/AVILA/PASCH $$
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Page last modified: Monday, 01-Nov-2004 19:55:11 UTC