[Tropical] Public Tropical Cyclone Advisory

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WTNT32 KNHC 272032
TCPAT2
BULLETIN
HURRICANE KATRINA ADVISORY NUMBER  18
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
4 PM CDT SAT AUG 27 2005

...KATRINA RE-ORGANIZING OVER THE SOUTHEASTERN GULF OF MEXICO...

AT 4 PM CDT...2100Z...THE HURRICANE WATCH IS EXTENDED WESTWARD TO
INTRACOASTAL CITY LOUISIANA AND EASTWARD TO THE FLORIDA-ALABAMA
BORDER.  A HURRICANE WATCH IS NOW IN EFFECT ALONG THE NORTHERN GULF
COAST FROM INTRACOASTAL CITY TO THE ALABAMA-FLORIDA BORDER.

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

AT 5 PM EDT...2100Z...THE TROPICAL STORM WARNING IS DISCONTINUED FOR
THE FLORIDA KEYS.

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

AT 4 PM CDT...2100Z...THE CENTER OF HURRICANE KATRINA WAS LOCATED
NEAR LATITUDE 24.6 NORTH...LONGITUDE  85.6 WEST OR ABOUT  380 MILES
SOUTHEAST OF THE MOUTH OF THE MISSISSIPPI RIVER AND ABOUT  240
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.

REPORTS FROM NOAA AND AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT
INDICATE MAXIMUM SUSTAINED WINDS ARE NEAR 115 MPH...WITH HIGHER
GUSTS.  KATRINA IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON
SCALE.  STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS...AND
KATRINA COULD BECOME A CATEGORY FOUR HURRICANE LATER TONIGHT OR
SUNDAY.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO  45 MILES... 75 KM...
FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP
TO 160 MILES...260 KM.  NOAA BUOY 42003 LOCATED NORTHWEST OF THE
CENTER RECENTLY REPORTED SUSTAINED WINDS OF 46 MPH WITH A GUST TO
58 MPH.

THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY THE NOAA AIRCRAFT IS
945 MB...27.91 INCHES.

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

KATRINA IS EXPECTED TO PRODUCE ADDITIONAL RAINFALL AMOUNTS OF 3 TO
5 INCHES OVER WESTERN CUBA...AND 1 TO 3 INCHES OF RAINFALL IS
EXPECTED OVER THE YUCATAN PENINSULA.  HEAVY RAINS FROM KATRINA
SHOULD BEGIN TO AFFECT THE CENTRAL GULF COAST SUNDAY EVENING.
RAINFALL TOTALS OF 5 TO 10 INCHES...WITH ISOLATED MAXIMUM AMOUNTS
OF 15 INCHES...ARE POSSIBLE ACROSS THE CENTRAL GULF COAST.

REPEATING THE 4 PM CDT POSITION...24.6 N... 85.6 W.  MOVEMENT
TOWARD...WEST NEAR  7 MPH.  MAXIMUM SUSTAINED
WINDS...115 MPH.  MINIMUM CENTRAL PRESSURE... 945 MB.

AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL
HURRICANE CENTER AT 7 PM CDT FOLLOWED BY THE NEXT
COMPLETE ADVISORY AT 10 PM CDT.

FORECASTER BEVEN


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