608
WTNT41 KNHC 081758
TCDAT1
HURRICANE IDA SPECIAL DISCUSSION NUMBER 19
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112009
1200 PM CST SUN NOV 08 2009
THIS SPECIAL ADVISORY IS BEING ISSUED TO EXTEND THE HURRICANE WATCH
EASTWARD ALONG THE NORTHERN GULF COAST TO MEXICO BEACH FLORIDA.
THERE ARE NO CHANGES TO THE TRACK FORECAST FROM THE PREVIOUS
REGULAR ADVISORY. THE INITIAL INTENSITY IS SET TO 85 KT BASED ON
FLIGHT-LEVEL AND SFMR WIND DATA FROM AN AIR FORCE RESERVE HURRICANE
HUNTER AIRCRAFT THAT JUST PENETRATED THE CENTER.
THIS ADVISORY REPLACES THE SCHEDULED INTERMEDIATE ADVISORY AT
1800 UTC.
FORECAST POSITIONS AND MAX WINDS
INITIAL 08/1800Z 21.7N 86.1W 85 KT
12HR VT 09/0000Z 22.8N 87.1W 85 KT
24HR VT 09/1200Z 25.6N 88.4W 85 KT
36HR VT 10/0000Z 28.2N 88.6W 75 KT
48HR VT 10/1200Z 30.0N 87.8W 65 KT...EXTRATROPICAL
72HR VT 11/1200Z 30.5N 84.5W 40 KT...EXTRATROPICAL INLAND
96HR VT 12/1200Z 30.0N 81.0W 30 KT...EXTRATROPICAL
120HR VT 13/1200Z...ABSORBED BY EXTRATROPICAL LOW
FORECASTER BEVEN
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