Hurricane Katrina August 28th 2005

WTNT32 KNHC 290250 
TCPAT2 
BULLETIN 
HURRICANE KATRINA ADVISORY NUMBER 25 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
10 PM CDT SUN AUG 28 2005 
 
...POTENTIALLY CATASTROPHIC HURRICANE KATRINA CONTINUES TO APPROACH 
THE NORTHERN GULF COAST... 
 
A HURRICANE WARNING IS IN EFFECT FOR THE NORTH CENTRAL GULF COAST 
FROM MORGAN CITY LOUISIANA EASTWARD TO THE ALABAMA/FLORIDA 
BORDER...INCLUDING THE CITY OF NEW ORLEANS AND LAKE PONTCHARTRAIN. 
PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO 
COMPLETION. 
 
A TROPICAL STORM WARNING AND A HURRICANE WATCH ARE IN EFFECT FROM 
EAST OF THE ALABAMA/FLORIDA BORDER TO DESTIN FLORIDA...AND FROM 
WEST OF MORGAN CITY TO INTRACOASTAL CITY LOUISIANA. 
 
A TROPICAL STORM WARNING IS ALSO IN EFFECT FROM DESTIN FLORIDA 
EASTWARD TO INDIAN PASS FLORIDA...AND FROM INTRACOASTAL CITY 
LOUISIANA WESTWARD TO CAMERON LOUISIANA. 
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE 
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED 
BY YOUR LOCAL WEATHER OFFICE. 
 
AT 10 PM CDT...0300Z...THE CENTER OF HURRICANE KATRINA WAS LOCATED 
NEAR LATITUDE 27.6 NORTH...LONGITUDE 89.4 WEST OR ABOUT 105 MILES 
SOUTH OF THE MOUTH OF THE MISSISSIPPI RIVER AND ABOUT 170 MILES 
SOUTH-SOUTHEAST OF NEW ORLEANS LOUISIANA. 
 
KATRINA IS MOVING TOWARD THE NORTH-NORTHWEST NEAR 10 MPH...AND A 
TURN TO THE NORTH IS EXPECTED OVER THE NEXT 12 TO 24 HOURS. ON THE 
FORECAST TRACK THE CENTER OF THE HURRICANE WILL BE VERY NEAR THE 
NORTHERN GULF COAST MONDAY MORNING. HOWEVER...CONDITIONS ARE 
ALREADY DETERIORATING ALONG PORTIONS OF THE CENTRAL AND 
NORTHEASTERN GULF COAST...AND WILL CONTINUE TO WORSEN THROUGH THE 
NIGHT. 
 
MAXIMUM SUSTAINED WINDS ARE NEAR 160 MPH WITH HIGHER GUSTS. KATRINA 
IS A CATEGORY FIVE HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME 
FLUCTUATIONS IN STRENGTH ARE LIKELY PRIOR TO LANDFALL...AND KATRINA 
IS EXPECTED TO MAKE LANDFALL AT EITHER CATEGORY FOUR OR FIVE 
INTENSITY. WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS 
WILL BE SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. 
 
KATRINA REMAINS A VERY LARGE HURRICANE. HURRICANE FORCE WINDS EXTEND 
OUTWARD UP TO 105 MILES FROM THE CENTER...AND TROPICAL STORM FORCE 
WINDS EXTEND OUTWARD UP TO 230 MILES. A WIND GUST TO 90 MPH WAS 
RECENTLY REPORTED FROM SOUTHWEST PASS LOUISIANA. 
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 904 MB...26.70 INCHES. AN 
AIR FORCE RESERVE UNIT RECONNAISSANCE AIRCRAFT WILL BE REACHING THE 
CENTER OF KATRINA VERY SHORTLY. 
 
COASTAL STORM SURGE FLOODING OF 18 TO 22 FEET ABOVE NORMAL TIDE 
LEVELS...LOCALLY AS HIGH AS 28 FEET...ALONG WITH LARGE AND DANGEROUS 
BATTERING WAVES...CAN BE EXPECTED NEAR AND TO THE EAST OF WHERE THE 
CENTER MAKES LANDFALL. SOME LEVEES IN THE GREATER NEW ORLEANS AREA 
COULD BE OVERTOPPED. SIGNIFICANT STORM SURGE FLOODING WILL OCCUR 
ELSEWHERE ALONG THE CENTRAL AND NORTHEASTERN GULF OF MEXICO COAST. 
 
RAINFALL TOTALS OF 5 TO 10 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 
15 INCHES...ARE POSSIBLE ALONG THE PATH OF KATRINA ACROSS THE GULF 
COAST AND THE TENNESSEE VALLEY. RAINFALL TOTALS OF 4 TO 8 INCHES 
ARE POSSIBLE ACROSS THE OHIO VALLEY INTO THE EASTERN GREAT LAKES 
REGION TUESDAY AND WEDNESDAY. 
 
ISOLATED TORNADOES WILL BE POSSIBLE THIS EVENING OVER SOUTHEASTERN 
LOUISIANA...SOUTHERN MISSISSIPPI...SOUTHERN ALABAMA...AND OVER THE 
FLORIDA PANHANDLE TONIGHT. 
 
REPEATING THE 10 PM CDT POSITION...27.6 N... 89.4 W. MOVEMENT 
TOWARD...NORTH-NORTHWEST NEAR 10 MPH. MAXIMUM SUSTAINED 
WINDS...160 MPH. MINIMUM CENTRAL PRESSURE... 904 MB. 
 
INTERMEDIATE ADVISORIES WILL BE ISSUED BY THE NATIONAL 
HURRICANE CENTER AT MIDNIGHT CDT AND 2 AM CDT FOLLOWED 
BY THE NEXT COMPLETE ADVISORY AT 4 AM CDT. 
 
FORECASTER FRANKLIN