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WTNT34 KNHC 091448
TCPAT4
BULLETIN
HURRICANE DENNIS ADVISORY NUMBER  20
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
11 AM EDT SAT JUL 09 2005

...DENNIS MOVING NORTHWESTWARD OVER THE SOUTHEASTERN GULF OF
MEXICO...

A HURRICANE WARNING REMAINS IN EFFECT FOR THE LOWER FLORIDA KEYS
FROM THE SEVEN MILE BRIDGE WESTWARD TO THE DRY TORTUGAS. A HURRICANE
WARNING IS ALSO IN EFFECT FOR PORTIONS OF THE NORTHEASTERN GULF
COAST FROM THE STEINHATCHEE RIVER WESTWARD TO THE MOUTH OF THE
PEARL RIVER.

AT 11 AM EDT...1500Z...THE HURRICANE WATCH FOR THE FLORIDA KEYS EAST
OF SEVEN MILE BRIDGE HAS BEEN DISCONTINUED. HOWEVER...A TROPICAL
STORM WARNING REMAINS IN EFFECT FOR THE FLORIDA KEYS EAST OF SEVEN
MILE BRIDGE.

A TROPICAL STORM WARNING IS NOW IN EFFECT ALONG THE FLORIDA WEST
COAST FROM EAST OF THE STEINHATCHEE RIVER SOUTHWARD...AND ALONG THE
SOUTHEAST FLORIDA COAST FROM GOLDEN BEACH SOUTHWARD...INCLUDING THE
FLORIDA KEYS FROM SEVEN MILE BRIDGE EASTWARD. A TROPICAL STORM
WARNING IS ALSO IN EFFECT FOR THE SOUTHEASTERN LOUISIANA COAST WEST
OF THE MOUTH OF THE PEARL RIVER TO GRAND ISLE...INCLUDING
METROPOLITAN NEW ORLEANS AND LAKE PONCHARTRAIN.

AT 11 AM EDT...ALL WATCHES AND WARNINGS FOR CUBA HAVE BEEN
DISCONTINUED.

A HURRICANE OR TROPICAL STORM WARNING MEANS THAT HURRICANE OR
TROPICAL STORM CONDITIONS...RESPECTIVELY...ARE EXPECTED WITHIN THE
WARNING AREA WITHIN THE NEXT 24 HOURS. PREPARATIONS TO PROTECT LIFE
AND PROPERTY SHOULD BE RUSHED TO COMPLETION IN THE HURRICANE
WARNING AREA.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED
BY YOUR LOCAL WEATHER OFFICE.

AT 11 AM EDT...1500Z...THE CENTER OF HURRICANE DENNIS WAS LOCATED
NEAR LATITUDE 24.7 NORTH... LONGITUDE 83.8 WEST OR ABOUT 125
MILES...WEST OF KEY WEST FLORIDA. THIS IS ALSO ABOUT 355 MILES...
SOUTH-SOUTHEAST OF APALACHICOLA FLORIDA AND ABOUT 480 MILES
SOUTHEAST OF PASCAGOULA MISSISSIPPI.

DENNIS IS MOVING TOWARD THE NORTHWEST NEAR 14 MPH...22 KM/HR... AND
THIS MOTION IS EXPECTED TO CONTINUE TODAY WITH A GRADUAL TURN
TOWARD THE NORTH-NORTHWEST TONIGHT AND SATURDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 100 MPH...160 KM/HR...WITH HIGHER
GUSTS. DENNIS IS A CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON
SCALE. SOME GRADUAL STRENGTHENING IS POSSIBLE DURING THE NEXT 24
HOURS.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  35 MILES... 55 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 175 MILES...280 KM.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS  967 MB...28.56 INCHES.

DENNIS IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 4 TO 8
INCHES ACROSS THE CENTRAL AND SOUTHERN FLORIDA PENINSULA...THE
FLORIDA KEYS...THE FLORIDA WEST COAST...THE FLORIDA PANHANDLE...
SOUTHERN ALABAMA...AND SOUTHERN MISSISSIPPI.  ADDITIONAL RAIN
ACCUMULATIONS OF 3 TO 6 INCHES ARE POSSIBLE ACROSS CENTRAL CUBA...
WHICH COULD PRODUCE LIFE-THREATENING FLASH FLOODS AND MUDSLIDES.

STORM SURGE WILL GRADUALLY DECREASE ALONG THE LOWER FLORIDA KEYS
TODAY AND TONIGHT. A STORM SURGE OF 3 TO 5 FEET IS POSSIBLE ALONG
THE SOUTHWEST COAST OF FLORIDA TODAY AND TONIGHT. A STORM SURGE OF
8 TO 10 FEET IS POSSIBLE ALONG AND TO THE RIGHT OF WHERE THE CENTER
OF DENNIS CROSSES THE NORTHEASTERN GULF COAST ON SUNDAY.

ISOLATED TORNADOES WILL BE POSSIBLE OVER CENTRAL AND SOUTHERN
FLORIDA PENINSULA AND THE FLORIDA KEYS TODAY...AND ACROSS THE
FLORIDA PANHANDLE TONIGHT AND SUNDAY.

REPEATING THE 11 AM EDT POSITION...24.7 N... 83.8 W.  MOVEMENT
TOWARD...NORTHWEST NEAR 14 MPH.  MAXIMUM SUSTAINED
WINDS...100 MPH.  MINIMUM CENTRAL PRESSURE... 967 MB.

INTERMEDIATE ADVISORIES WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 1 PM EDT AND 3 PM EDT FOLLOWED
BY THE NEXT COMPLETE ADVISORY AT 5 PM EDT.

FORECASTER STEWART


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