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Hurricane Tracking Center

Active Tropical Systems Basin Outlooks Satellite
October 2006 Atlantic Monthly Summary
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000
ABNT30 KNHC 011244
TWSAT 
MONTHLY TROPICAL WEATHER SUMMARY
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT WED NOV 1 2006

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
 
ONLY ONE TROPICAL CYCLONE EXISTED IN THE ATLANTIC BASIN DURING
OCTOBER. ISAAC...WHICH DEVELOPED IN SEPTEMBER...WAS STILL A
HURRICANE AS THE MONTH OF OCTOBER BEGAN. THE LAST TIME NO TROPICAL
STORMS FORMED IN THE ATLANTIC DURING THE MONTH OF OCTOBER WAS
2002...AND THE LAST TIME NO TROPICAL CYCLONES FORMED DURING OCTOBER
WAS 1994. IN AN AVERAGE OCTOBER...TWO TROPICAL STORMS DEVELOP OF
WHICH ONE BECOMES A HURRICANE.

ISAAC FORMED IN SEPTEMBER AND BECAME A HURRICANE ON THE LAST DAY OF
THE MONTH ABOUT 370 MILES EAST-SOUTHEAST OF BERMUDA. ISAAC REACHED
ITS ESTIMATED PEAK INTENSITY OF 85 MPH AROUND 0000 UTC 1 OCTOBER
ABOUT 285 MILES EAST OF BERMUDA. ON THE SAME DAY...ISAAC RECURVED
AROUND THE WESTERN PERIPHERY OF A SUBTROPICAL RIDGE WITH AN
INCREASE IN FORWARD SPEED. THE CYCLONE MOVED QUICKLY TO THE
NORTH-NORTHEAST ON 2 OCTOBER AHEAD OF AN APPROACHING DEEP-LAYER
TROUGH FROM THE WEST. DURING THIS TIME...ISAAC ENCOUNTERED
INCREASING SOUTHWESTERLY SHEAR AND COOLER WATERS AND BY 1200 UTC
THAT DAY...IT WEAKENED TO A TROPICAL STORM. LATER ON 2 OCTOBER...
THE CENTER OF ISAAC QUICKLY PASSED ABOUT 35 MILES SOUTHEAST OF THE
AVALON PENINSULA OF NEWFOUNDLAND. EVEN THOUGH ISAAC REMAINED
OFFSHORE...TROPICAL-STORM-FORCE WINDS WERE EXPERIENCED ACROSS
PORTIONS OF THE SOUTHERN AVALON PENINSULA. ISAAC TRANSITIONED TO AN
EXTRATROPICAL CYCLONE BY 0000 UTC 3 OCTOBER AND MERGED WITH A
LARGER EXTRATROPICAL LOW LATER THAT DAY.


SUMMARY TABLE

NAME             DATES        MAX WIND   DEATHS   U.S. DAMAGE
                                MPH                $MILLION
---------------------------------------------------------------
H ISAAC       27 SEP-2 OCT       85         0          0
--------------------------------------------------------------
NOTE...DATES BASED ON COORDINATED UNIVERSAL TIME (UTC)
N/A...NOT AVAILABLE
  
$$
FORECASTER MAINELLI/BEVEN