WTNT44 KNHC 092301
TCDAT4
HURRICANE DENNIS SPECIAL DISCUSSION NUMBER 22
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
7 PM EDT SAT JUL 09 2005

WHAT A DIFFERENCE 2 HOURS MAKES! AIR FORCE AND NOAA HURRICANE
HUNTER AIRCRAFT INDICATE THE CENTRAL PRESSURE OF DENNIS DROPPED 11
MB IN AN HOUR AND A HALF. THE MAXIMUM FLIGHT-LEVEL WINDS REPORTED
N OF THE CENTER WERE 105 KT…AND THERE WERE LIKELY STRONGER WINDS
IN THE NORTHEASTERN QUADRANT THAT THE AIRCRAFT DID NOT SAMPLE.
THIS SPECIAL ADVISORY UPGRADES DENNIS TO A 100 KT CATEGORY 3
HURRICANE BASED ON THE AIRCRAFT DATA.

THE TRACK FORECAST IS UNCHANGED FROM THE PREVIOUS PACKAGE. IT IS
UNCLEAR HOW LONG THE CURRENT INTENSIFICATION WILL CONTINUE…BUT
THE INTENSITY FORECAST IS REVISED TO SHOW 12 HR OF RAPID
STRENGTHENING FOLLOWED BY SLOWER STRENGTHENING UNTIL LANDFALL. THE
NEW INTENSITY FORECAST BRINGS DENNIS ASHORE AS A CATEGORY 4
HURRICANE.

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