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#212349 (Received by flhurricane at: 11:03 AM 01.Sep.2008)
TCDAT2
HURRICANE GUSTAV DISCUSSION NUMBER 32
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072008
1100 AM EDT MON SEP 01 2008

THE CENTER OF GUSTAV MADE LANDFALL ALONG THE LOUISIANA COAST NEAR
COCODRIE ABOUT 1430 UTC. DURING THE PAST FEW HOURS...THE EYE
BECAME BETTER DEFINED ON RADAR. HOWEVER...WIND DATA FROM AIR FORCE
RESERVE AND NOAA AIRCRAFT ALONG WITH DOPPLER RADAR WINDS SUGGESTS
THAT GUSTAV WEAKENED TO A CATEGORY TWO HURRICANE BEFORE LANDFALL.
THE INITIAL INTENSITY OF 95 KT IS BASED ON THE AIRCRAFT DATA...AND
THIS MIGHT BE A LITTLE GENEROUS.

THE INITIAL MOTION IS 310/13. GUSTAV IS BEING STEERED NORTHWESTWARD
BY A MID-LEVEL RIDGE OVER THE EASTERN UNITED STATES. THE CYCLONE
IS EXPECTED TO CONTINUE NORTHWESTWARD WITH A DECREASE IN FORWARD
SPEED AS A LOW-LEVEL RIDGE BUILDS TO THE THE NORTH AND NORTHWEST.
THE FORECAST TRACK IS ESSENTIALLY AN UPDATE OF THE PREVIOUS
FORECAST THROUGH 48 HR. AFTER THAT TIME...THE GUIDANCE IS NOW IN
BETTER AGREEMENT ON A SLOW NORTHWARD MOTION...SO THE 72-120 HR PART
OF THE TRACK IS CHANGED FROM A WESTWARD DRIFT TO A NORTHWARD DRIFT.

GUSTAV SHOULD WEAKEN AS IT MOVES INLAND...ALTHOUGH THE WEAKENING
WILL LIKELY BE SLOW AT FIRST AS THE CENTER CROSSES THE SOUTH
LOUISIANA MARSHES. A FASTER WEAKENING IS EXPECTED IN 6-12 HR AS
THE CENTER REACHES MORE SOLID GROUND. AFTER 48 HR...GUSTAV IS
LIKELY TO SHEAR APART...WITH THE UPPER-LEVEL PORTION OF THE CYCLONE
MOVING NORTHEASTWARD AND LEAVING THE SURFACE CENTER BEHIND.
THUS...THE FORECAST SHOWS THE SYSTEM BECOMING A REMNANT LOW BY 72
HR.

THE THREAT OF HIGH STORM SURGE WILL CONTINUE ALONG THE LOUISIANA
COAST FOR SEVERAL MORE HOURS...AND THE THREAT OF HEAVY RAINS WILL
CONTINUE FOR SEVERAL DAYS.

FORECAST POSITIONS AND MAX WINDS

INITIAL 01/1500Z 29.2N 90.8W 95 KT
12HR VT 02/0000Z 30.3N 92.4W 70 KT...INLAND
24HR VT 02/1200Z 31.3N 93.8W 40 KT...INLAND
36HR VT 03/0000Z 31.9N 94.6W 30 KT...INLAND
48HR VT 03/1200Z 32.4N 95.3W 25 KT...INLAND
72HR VT 04/1200Z 33.0N 95.5W 20 KT...INLAND REMNANT LOW
96HR VT 05/1200Z 33.5N 95.5W 20 KT...INLAND REMNANT LOW
120HR VT 06/1200Z 34.0N 95.5W 20 KT...INLAND REMNANT LOW

$$
FORECASTER BEVEN