ZCZC MIATCPAT2 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE KATRINA SPECIAL ADVISORY NUMBER 20 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 1 AM CDT SUN AUG 28 2005 ...KATRINA STRENGTHENS TO CATEGORY FOUR WITH 145 MPH WINDS... 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. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. 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 MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 1 AM CDT...0600Z...THE CENTER OF HURRICANE KATRINA WAS LOCATED NEAR LATITUDE 25.1 NORTH... LONGITUDE 86.8 WEST OR ABOUT 310 MILES... 500 KM... SOUTH-SOUTHEAST OF THE MOUTH OF THE MISSISSIPPI RIVER. KATRINA IS MOVING TOWARD THE WEST-NORTHWEST NEAR 8 MPH. A GRADUAL TURN TOWARD THE NORTHWEST IS EXPECTED LATER TODAY. REPORTS FROM AN AIR FORCE RECONNAISSANCE AIRCRAFT INDICATE THAT MAXIMUM SUSTAINED WINDS HAVE INCREASED AND ARE NOW NEAR 145 MPH...WITH HIGHER GUSTS. KATRINA IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME ADDITIONAL STRENGTHENING IS POSSIBLE TODAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM... FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 160 MILES...260 KM. THE MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY THE RECONNAISSANCE AIRCRAFT WAS 935 MB...27.61 INCHES. COASTAL STORM SURGE FLOODING OF 15 TO 20 FEET ABOVE NORMAL TIDE LEVELS...LOCALLY AS HIGH AS 25 FEET ALONG WITH LARGE AND DANGEROUS BATTERING WAVES...CAN BE EXPECTED NEAR AND TO THE EAST OF WHERE THE CENTER MAKES LANDFALL. 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 ALONG THE PATH OF KATRINA. THE HURRICANE IS STILL EXPECTED TO PRODUCE ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES OVER EXTREME WESTERN CUBA...AND 1 TO 3 INCHES OF RAINFALL IS EXPECTED OVER THE YUCATAN PENINSULA. REPEATING THE 1 AM CDT POSITION...25.1 N... 86.8 W. MOVEMENT TOWARD...WEST-NORTHWEST NEAR 8 MPH. MAXIMUM SUSTAINED WINDS...145 MPH. MINIMUM CENTRAL PRESSURE... 935 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 4 AM CDT. FORECASTER KNABB $$ NNNN
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Page last modified: Sunday, 28-Aug-2005 06:25:05 GMT