Tropical Storm ISAAC

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BULLETIN
TROPICAL STORM ISAAC ADVISORY NUMBER  20
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL092006
1100 AM AST MON OCT 02 2006

...ISAAC WEAKENS...STILL HEADING FOR SOUTHEASTERN NEWFOUNDLAND...

A TROPICAL STORM WARNING REMAINS IN EFFECT FOR THE AVALON PENINSULA
IN SOUTHEASTERN NEWFOUNDLAND.
 
A TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE BURIN PENINSULA
AND BONAVISTA PENINSULA IN SOUTHEASTERN NEWFOUNDLAND.
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.
 
AT 1100 AM AST...1500Z...THE CENTER OF TROPICAL STORM ISAAC WAS
LOCATED NEAR LATITUDE 44.3 NORTH...LONGITUDE 55.0 WEST OR ABOUT 190
MILES...305 KM...SOUTH-SOUTHWEST OF CAPE RACE NEWFOUNDLAND.
 
ISAAC IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 41 MPH...67 KM/HR...
AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24
HOURS.  ON THIS TRACK THE CENTER WILL PASS NEAR OR OVER
SOUTHEASTERN NEWFOUNDLAND LATER TODAY.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/HR...WITH HIGHER
GUSTS.  SOME WEAKENING IS FORECAST DURING THE NEXT 24 HOURS.  ISAAC
IS LOSING TROPICAL CHARACTERISTICS AND IS EXPECTED TO BECOME AN
EXTRATROPICAL LOW LATER TODAY.
 
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES...465 KM
MAINLY TO THE EAST OF THE CENTER. 
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 994 MB...29.35 INCHES.
 
COASTAL STORM SURGE FLOODING OF 2 TO 3 FEET ABOVE NORMAL TIDE
LEVELS...ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE
EXPECTED NEAR AND TO THE EAST OF WHERE THE CENTER MAKES LANDFALL.
 
RAINFALL TOTALS OF 2 TO 3 INCHES WILL BE POSSIBLE OVER SOUTHEASTERN
NEWFOUNDLAND TODAY.
 
REPEATING THE 1100 AM AST POSITION...44.3 N...55.0 W.  MOVEMENT
TOWARD...NORTH-NORTHEAST NEAR 41 MPH.  MAXIMUM SUSTAINED WINDS...60
MPH.  MINIMUM CENTRAL PRESSURE...994 MB.
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 200 PM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500
PM AST.
 
$$
FORECASTER BROWN/PASCH
 
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