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| #42780 (Received by flhurricane at: 6:58 AM 29.Aug.2005) TCPAT2 BULLETIN HURRICANE KATRINA INTERMEDIATE ADVISORY NUMBER 26A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 6 AM CDT MON AUG 29 2005 ...EXTREMELY DANGEROUS CATEGORY FOUR HURRICANE KATRINA PREPARING TO MOVE ONSHORE NEAR SOUTHERN PLAQUEMINES PARISH LOUISIANA... ...HURRICANE-FORCE WIND GUSTS OCCURRING OVER MOST OF SOUTHEASTERN LOUISIANA...IN THE NEW ORLEANS METROPOLITAN AREA...AND AS FAR EAST AS THE CHANDELEUR ISLANDS... 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 COMPLETED THIS EVENING. 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 8 AM CDT...1300Z...THE CENTER OF MAJOR HURRICANE KATRINA WAS LOCATED NEAR LATITUDE 29.1 NORTH... LONGITUDE 89.6 WEST OR ABOUT MIDWAY BETWEEN GRAND ISLE AND THE MOUTH OF THE MISSISSIPPI RIVER. THIS IS ALSO ABOUT 70 MILES SOUTH-SOUTHEAST OF NEW ORLEANS LOUISIANA AND ABOUT 95 MILES SOUTH-SOUTHWEST OF BILOXI MISSISSIPPI. KATRINA IS MOVING TOWARD THE NORTH NEAR 15 MPH... AND THIS MOTION IS FORECAST TO CONTINUE TODAY. A GRADUAL TURN TOWARD THE NORTH-NORTHEAST AT A SLIGHTLY FASTER FORWARD SPEED IS EXPECTED LATER TONIGHT AND ON TUESDAY. ON THE FORECAST TRACK...KATRINA WILL MOVE ONSHORE THE SOUTHERN COAST OF PLAQUEMINES PARISH NEAR EMPIRE AND BURAS LOUSIANA WITHIN THE ENXT HOUR...AND REACH THE LOUISIANA-MISSISSIPPI BORDER AREA BY EARLY AFTERNOON. CONDITIONS WILL CONTINUE TO STEADILY DETERIORATE OVER CENTRAL AND SOUTHEASTERN LOUISIANA...SOUTHERN MISSISSIPPI...AND SOUTHERN ALABAMA THROUGHOUT THE DAY. MAXIMUM SUSTAINED WINDS ARE NEAR 145 MPH...WITH HIGHER GUSTS. KATRINA IS A STRONG CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME FLUCTUATIONS IN STRENGTH ARE LIKELY PRIOR TO LANDFALL...BUT KATRINA IS EXPECTED TO MAKE LANDFALL AS A CATEGORY FOUR HURRICANE. 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 120 MILES FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 230 MILES. DURING THE PAST HOUR...A SUSTAINED WIND OF 56 MPH WITH A GUST TO 85 MPH WAS REPORTED AT NEW ORLEANS LAKEFRONT AIRPORT...AND A SUSTAINED WIND OF 74 MPH WITH A GUST TO 96 MPH WAS REPORTED AT THE NAVAL AIR STATION IN BELLE CHASSE LOUISIANA. THE MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY AN AIR FORCE RESERVE UNIT RECONNAISSANCE AIRCRAFT WAS 918 MB...27.11 INCHES. 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. NOAA BUOY 42040 LOCATED ABOUT 50 MILES EAST OF THE MOUTH OF THE MISSISSIPPI RIVER RECENTLY REPORTED WAVES HEIGHTS OF AT LEAST 47 FEET. 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. SCATTERED TORNADOES WILL BE POSSIBLE TODAY OVER SOUTHEASTERN LOUISIANA... SOUTHERN MISSISSIPPI...SOUTHERN ALABAMA...AND OVER THE FLORIDA PANHANDLE. REPEATING THE 8 AM CDT POSITION...29.1 N... 89.6 W. MOVEMENT TOWARD...NORTH NEAR 15 MPH. MAXIMUM SUSTAINED WINDS...145 MPH. MINIMUM CENTRAL PRESSURE... 918 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 8 AM CDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 10 AM CDT. FORECASTER STEWART |
