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| #42688 (Received by flhurricane at: 12:58 AM 29.Aug.2005) TCPAT2 BULLETIN HURRICANE KATRINA INTERMEDIATE ADVISORY NUMBER 25A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL MIDNIGHT CDT MON AUG 29 2005 ...POTENTIALLY CATASTROPHIC CATEGORY FIVE HURRICANE KATRINA CONTINUES TO APPROACH THE NORTHERN GULF COAST... ...SUSTAINED HURRICANE-FORCE WINDS NEARING THE SOUTHEASTERN LOUISIANA 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 MIDNIGHT CDT...0500Z...THE CENTER OF HURRICANE KATRINA WAS LOCATED NEAR LATITUDE 27.9 NORTH...LONGITUDE 89.5 WEST OR ABOUT 90 MILES SOUTH-SOUTHWEST OF THE MOUTH OF THE MISSISSIPPI RIVER AND ABOUT 150 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 REMAIN 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 98 MPH WAS RECENTLY REPORTED FROM SOUTHWEST PASS LOUISIANA. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 908 MB...26.81 INCHES. AN AIR FORCE RESERVE UNIT RECONNAISSANCE AIRCRAFT IS CURRENTLY INVESTIGATING KATRINA. 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 MIDNIGHT CDT POSITION...27.9 N... 89.5 W. MOVEMENT TOWARD...NORTH-NORTHWEST NEAR 10 MPH. MAXIMUM SUSTAINED WINDS...160 MPH. MINIMUM CENTRAL PRESSURE... 908 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 2 AM CDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 4 AM CDT. FORECASTER STEWART |
