[Tropical] Public Tropical Cyclone Advisory

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WTNT32 KNHC 271738
TCPAT2
BULLETIN
HURRICANE KATRINA INTERMEDIATE ADVISORY NUMBER  17A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1 PM CDT SAT AUG 27 2005

...CATEGORY THREE KATRINA MOVING WESTWARD IN THE SOUTHEASTERN GULF
OF MEXICO...LITTLE CHANGE IN STRENGTH THE PAST FEW HOURS...

A HURRICANE WATCH REMAINS IN EFFECT FOR THE SOUTHEASTERN COAST OF
LOUISIANA EAST OF MORGAN CITY TO THE MOUTH OF THE PEARL RIVER...
INCLUDING METROPOLITAN NEW ORLEANS AND LAKE PONCHARTRAIN.  A
HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN
THE WATCH AREA...GENERALLY WITHIN 36 HOURS.

A HURRICANE WATCH WILL LIKELY BE REQUIRED FOR OTHER PORTIONS OF THE
NORTHERN GULF COAST LATER TODAY OR TONIGHT.  INTERESTS IN THIS AREA
SHOULD MONITOR THE PROGRESS OF KATRINA.

A TROPICAL STORM WARNING REMAINS IN EFFECT WEST OF KEY WEST TO THE
DRY TORTUGAS.

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

AT 1 PM CDT...1800Z...THE CENTER OF HURRICANE KATRINA WAS LOCATED
NEAR LATITUDE 24.5 NORTH...LONGITUDE  85.4 WEST OR ABOUT  390 MILES
SOUTHEAST OF THE MOUTH OF THE MISSISSIPPI RIVER AND ABOUT  230
MILES WEST OF KEY WEST FLORIDA.

KATRINA IS MOVING TOWARD THE WEST NEAR  7 MPH.  A GRADUAL TURN
TOWARD THE WEST-NORTHWEST IS EXPECTED DURING THE NEXT 24 HOURS.

MAXIMUM SUSTAINED WINDS ARE NEAR 115 MPH...WITH HIGHER GUSTS.
KATRINA IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON SCALE.
SOME STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS...AND
KATRINA COULD BECOME A CATEGORY FOUR HURRICANE.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  40 MILES FROM THE
CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 150
MILES. NOAA BUOY 42003 LOCATED NORTHWEST OF THE CENTER RECENTLY
REPORTED SUSTAINED WINDS OF 46 MPH WITH A GUST TO 56 MPH.

THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY A NOAA HURRICANE
HUNTER AIRCRAFT IS  949 MB...28.02 INCHES.

STORM SURGE FLOODING ALONG THE SOUTHWESTERN COAST OF FLORIDA SHOULD
SUBSIDE TODAY.

KATRINA IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 5 TO 10 INCHES
OVER WESTERN CUBA...AND 1 TO 3 INCHES OF RAINFALL IS EXPECTED OVER
THE YUCATAN PENINSULA.  RAINFALL FROM KATRINA SHOULD BEGIN TO PUSH
INTO THE CENTRAL GULF COAST LATE SUNDAY AFTERNOON INTO SUNDAY
EVENING.

REPEATING THE 1 PM CDT POSITION...24.5 N... 85.4 W.  MOVEMENT
TOWARD...WEST NEAR  7 MPH.  MAXIMUM SUSTAINED
WINDS...115 MPH.  MINIMUM CENTRAL PRESSURE... 949 MB.

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 4 PM CDT.

FORECASTER BEVEN


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