ZCZC MIATCDEP2 ALL TTAA00 KNHC DDHHMM TROPICAL STORM BORIS SPECIAL DISCUSSION NUMBER 12 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP022008 500 PM PDT SUN JUN 29 2008 THE PURPOSE OF THIS SPECIAL ADVISORY IS TO INCREASE THE INITIAL AND FORECAST INTENSITIES OF BORIS. OVER THE PAST COUPLE OF HOURS...A RAGGED EYE HAS BEEN APPARENT IN VISIBLE SATELLITE IMAGERY. IN ADDITION...A RECENT MICROWAVE PASS INDICATES THAT THE LOW-LEVEL CENTER OF BORIS IS REASONABLY CO-LOCATED WITH THE VISIBLE EYE FEATURE. THE CIMSS ADT ESTIMATES THE INTENSITY OF THE CYCLONE TO BE JUST BELOW HURRICANE STRENGTH. AS A RESULT...THE ADVISORY INTENSITY IS INCREASED TO 60 KT. WHILE BORIS COULD REACH HURRICANE STRENGTH TONIGHT...THE GENERAL SLOW WEAKENING SCENARIO FROM PREVIOUS ADVISORIES IS RETAINED. THE TRACK FORECAST HAS BEEN ADJUSTED ONLY SLIGHTLY TO THE SOUTH OF THE PREVIOUS ADVISORY. FORECAST POSITIONS AND MAX WINDS INITIAL 30/0000Z 14.8N 117.8W 60 KT 12HR VT 30/0600Z 14.7N 118.5W 60 KT 24HR VT 30/1800Z 14.6N 120.0W 50 KT 36HR VT 01/0600Z 14.5N 121.5W 40 KT 48HR VT 01/1800Z 14.5N 122.5W 35 KT 72HR VT 02/1800Z 14.5N 124.5W 30 KT 96HR VT 03/1800Z 14.5N 126.5W 25 KT...REMNANT LOW 120HR VT 04/1800Z 14.5N 128.5W 20 KT...REMNANT LOW $$ FORECASTER FRANKLIN NNNN
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