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Context of '10:00 am August 29, 2005: NHC Advisory: Katrina moves towards Mississippi'

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The National Hurricane Center (NHC) warns that Katrina is now a “potentially catastrophic Category 5 hurricane” and is headed for the Northern Gulf Coast. Although the NHC cannot predict the exact strength at landfall, Katrina is “expected to be a devastating Category 4 or 5 hurricane at landfall.” The NHC forecasts coastal storm surge flooding 15 to 20 feet above normal tide levels, with higher surges of up to 25 feet, as well as large and dangerous battering waves near and to the east of where the center makes landfall. Other aspects of the NHC Advisory include:
bullet Location: 250 miles south-southeast of the mouth of the Mississippi River
bullet Direction and Speed: West-northwest at 12 mph
bullet Maximum Sustained Winds: Near 160 mph, with higher gusts
bullet Estimated Central Pressure: 908 mb [National Hurricane Center, 8/28/2005; National Hurricane Center, 8/28/2005]

Entity Tags: National Hurricane Center, Hurricane Katrina

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC)‘s midnight advisory leads with: “Potentially catastrophic [Category 5] Hurricane Katrina continues to approach the Northern Gulf Coast…sustained hurricane-force winds nearing the Southeastern Louisiana coast.” Already, a wind gust to 98 mph has been reported from Southwest Pass Louisiana. Katrina remains quite large, and will likely cause storm surge flooding of 18-22 feet above normal, with increased surge to 28 feet in some areas, and may overtop New Orleans’ levees. Some changes to Katrina’s structure indicates that there could be some weakening, although the NHC reiterates that Katrina likely will still be a very dangerous Category 4 hurricane at landfall. Other aspects of the NHC Advisory include:
bullet Location: 90 miles south-southwest of the mouth of the Mississippi River; 150 miles south-southeast of New Orleans
bullet Direction and Speed: North-northwest at near 10 mph
bullet Maximum Sustained Winds: Near 160 mph with higher gusts
bullet Estimated Central Pressure: 908 mb
bullet Size: hurricane winds now extend 105 miles from the center; tropical storm force winds extend 230 miles [National Hurricane Center, 8/29/2005]

Entity Tags: National Hurricane Center, Hurricane Katrina

Timeline Tags: Hurricane Katrina

Katrina, still an “extremely dangerous” Category 4 hurricane, with sustained winds at 135 mph, is now moving north at nearly 15 mph and its eye is now approximately 40 miles southeast of New Orleans and 65 miles southwest of Biloxi. The National Hurricane Center expects Katrina to pass just to the east of New Orleans during the next few hours, and then move into Southern Mississippi. Katrina has grown yet again, with hurricane force winds extending 125 miles from the center, and tropical storm force winds extending 230 miles. NHC warns that storm surge flooding of “10 to 15 feet… near the tops of the levees… is possible in the Greater New Orleans area.” Minimum central pressure has increased to 923 MB. [National Hurricane Center, 8/29/2005]

Entity Tags: Hurricane Katrina, National Hurricane Center

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) advises that storm surge flooding of 10 to 15 feet—near the tops of the levees—is still possible in the greater New Orleans area. Katrina’s center has now made landfall again near the Louisiana-Mississippi border, about 35 miles east-northeast of New Orleans, and about 45 miles west-southwest of Biloxi. Now a Category 3 hurricane with sustained winds near 125 mph, Katrina is moving north at nearly 16 mph. The hurricane remains huge, with hurricane force winds extending 105 miles from the center, and tropical storm force winds extending 230 miles. NHC reiterates that storm surge flooding will be 15-20 feet above normal. Minimum central pressure has increased to 927 mb. [National Hurricane Center, 8/29/2005]

Entity Tags: Hurricane Katrina, National Hurricane Center

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) advises that Katrina is now a Category 2 hurricane with sustained winds of nearly 105 mph. Katrina remains huge, with hurricane force winds extending 125 miles from the center, and tropical storm force winds extending 230 miles. Katrina’s center is now 40 miles south-southwest of Hattiesburg, Mississippi. Minimum central pressure has increased to 940 MB. [National Hurricane Center, 8/29/2005]

Entity Tags: National Hurricane Center, Hurricane Katrina

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) advises that Katrina is now a still-dangerous Category 1 hurricane, with sustained winds of nearly 95 mph. The hurricane remains huge, with hurricane force winds extending 125 miles from the center, and tropical storm force winds extending 230 miles. Katrina’s center is now 20 miles south-southwest of Hattiesburg, Mississippi. [National Hurricane Center, 8/29/2005]

Entity Tags: Hurricane Katrina, National Hurricane Center

Timeline Tags: Hurricane Katrina

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