000 WTNT64 KNHC 210034 TCUAT4 HURRICANE DEAN TROPICAL CYCLONE UPDATE NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL042007 835 PM AST MON AUG 20 2007 DATA FROM THE AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT CURRENTLY INVESTIGATING HURRICANE DEAN INDICATE THAT MAXIMUM SUSTAINED WINDS HAVE INCREASED TO 160 MPH...MAKING DEAN A POTENTIALLY CATASTROPHIC CATEGORY FIVE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE SCALE. $$ FORECASTER KNABB