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HURRICANE IRENE DISCUSSION NUMBER  24
NATIONAL WEATHER SERVICE MIAMI FL
11 PM EDT MON OCT 18 1999
 
THE INITIAL MOTION ESTIMATE HAS INCREASED TO 060/55 OVER THE PAST 6
HOURS.  THERE IS LITTLE CHANGE IN REASONING FROM THE PREVIOUS
ADVISORY.  THE VARIOUS GLOBAL MODELS CONTINUE TO SHOW IRENE BEING
ADVECTED RAPIDLY NORTHEASTWARD FOR 24 HOURS FOLLOWED BY A TURN
TOWARD THE EAST AND A SLOWING OF FORWARD SPEED.
 
THE AREA OF DEEP CONVECTION NEAR THE CENTER IS DIMINISHING AND IRENE
IS BECOMING EXTRATROPICAL AS IT MERGES WITH A COLD FRONT.  THE AREA
OF GALE FORCE WINDS IS LARGE AND THE MODELS SHOW IT BECOMING EVEN
LARGER AS IRENE IS FORECAST TO EVOLVE INTO A HUGE INTENSE LOW OVER
THE FAR NORTH ATLANTIC.

THIS WILL BE THE LAST ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON IRENE.  FUTURE INFORMATION WILL BE CONTAINED IN HIGH SEAS
FORECASTS ISSUED BY THE MARINE PREDICTION CENTER.

LAWRENCE
 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL     19/0300Z 43.0N  58.0W    75 KTS
12HR VT     19/1200Z 47.0N  49.0W    65 KTS...EXTRATROPICAL
24HR VT     20/0000Z 51.0N  37.0W    60 KTS...EXTRATROPICAL
36HR VT     20/1200Z 51.0N  32.0W    60 KTS...EXTRATROPICAL
48HR VT     21/0000Z 51.0N  29.0W    60 KTS...EXTRATROPICAL
 
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