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224 WTNT61 KNHC 091040 TCUAT BULLETIN HURRICANE IVAN UPDATE NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 635 AM AST THU SEP 9 2004 AN AIR FORCE RESERVE RECONNAISSANCE AIRCRAFT INVESTIGATING IVAN THIS MORNING RECENTLY REPORTED...AT 614 AM AST OR 1014Z...A FLIGHT-LEVEL WIND OF 154 KT IN THE NORTHEAST QUADRANT. THEY ALSO REPORTED A LOWER CENTRAL PRESSURE OF 920 MB...SUGGESTING THAT IVAN MAY CONTAIN SURFACE WINDS A LITTLE STRONGER THAN THE 160 MPH INDICATED IN THE 5 AM AST ADVISORY. DROPSONDE WIND REPORTS ALSO INDICATED WINDS OF NEAR 210 MPH AT AN ALTITUDE OF ABOUT 350 FEET ABOVE THE OCEAN SURFACE. FORECASTER STEWART |