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Context of '5:00 pm August 28, 2005: Winds Knock Down Utility Poles in Port Sulphur, Louisiana'

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The National Hurricane Center (NHC) expands the hurricane watch westward to Intracoastal City, Louisiana and eastward to the Florida-Alabama border, and states that a hurricane warning likely will be required for portions of the Northern Gulf Coast later tonight or Sunday. Landfall in southeast Louisiana is likely in “a little under” 48 hours. (In fact, Katrina will make landfall in 32 hours .) According to the NHC, Katrina will likely strengthen, and may become a Category 5 hurricane before landfall. Katrina likely will move west-northwest during the next 24 hours. Models continue to diverge, with some indicating Katrina will turn northward, while others indicate Katrina will shift westward. Other aspects of the NHC Advisory include:
bullet Location: 380 miles southeast of the mouth of the Mississippi River
bullet Direction and Speed: West at 7 mph
bullet Maximum Sustained Winds: 115 mph, with higher gusts
bullet Estimated Central Pressure: 945 mb
bullet Size: Hurricane force winds extend outward from center up to 45 miles; tropical storm force winds extend outward up to 160 miles
bullet Probability that in the next 69 hours, Katrina’s eye will pass within 75 miles of:
bullet Panama City, FL: 12 percent
bullet Gulfport, MS: 20 percent
bullet New Orleans, LA: 21 percent [National Hurricane Center, 8/27/2005; National Hurricane Center, 8/27/2005; National Hurricane Center, 8/27/2005]

Entity Tags: National Hurricane Center, Hurricane Katrina

Timeline Tags: Hurricane Katrina

The National Hurricane Center’s (NHC) 2:00 am advisory leads with the warning that potentially catastrophic Hurricane Katrina is beginning to turn northward toward Southeastern Louisiana and the Northern Gulf Coast and that sustained hurricane-force winds are already occurring along the Southeastern Louisiana Coast. Katrina will likely make landfall with Category 4 or Category 5 intensity. The NHC warns that winds will be significantly stronger on upper floors of high-rise buildings than those near ground level. An 83 mph wind gust has been reported just east of the Chandeleur Islands (Mississippi), a 75 mph gust at Grand Isle, Lousiana, and a 60 mph gust has already been reported in New Orleans. Coastal storm surge flooding of 18 to 22 feet above normal tide levels can be expected, with some surges reaching as high as 28 feet. Some levees in the greater New Orleans area may be overtopped. A bouy 50 miles east of the Mississippi River has reported waves as high as 40 feet already. Other aspects of the NHC Advisory include:
bullet Location: 70 miles south-southwest of the mouth of the Mississippi River; 130 miles south-southeast of New Orleans
bullet Direction and Speed: North at near 12 mph
bullet Maximum Sustained Winds: 155 mph with higher gusts
bullet Estimated Central Pressure: 910 mb
bullet Size: hurricane winds 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

The National Hurricane Center (NHC) warns that Katrina, still a Category 4 hurricane, continues to intensify and grow larger. The NHC reiterates the hurricane warning for Louisiana to Florida, and expands the area covered by a tropical storm warning. It warns further that, “While the details of the landfall intensity cannot be known at this time… Katrina will be a very dangerous hurricane at landfall…. It must be emphasized that the exact landfall point cannot be specified and that Katrina is a large hurricane that will affect a large area,” warns the NHC. “NHC now expects Katrina’s path to move north later today.” Other aspects of the NHC Advisory include:
bullet Location: 275 miles south-southeast of the mouth of the Mississippi River
bullet Direction and Speed: West-northwest at 10 mph
bullet Maximum Sustained Winds: Near 145 mph, with higher gusts
bullet Estimated Central Pressure: 935 mb
bullet Size: Hurricane force winds extend outward from center up to 85 miles; tropical storm force winds extend outward up to 185 miles
bullet Probability that in the next 69 hours, Katrina’s eye will pass within 75 miles of:
bullet Panama City, FL: 11 percent
bullet Gulfport, MS: 26 percent;
bullet New Orleans, LA: 29 percent [National Hurricane Center, 8/28/2005; National Hurricane Center, 8/28/2005; National Hurricane Center, 8/28/2005]

Entity Tags: National Hurricane Center, Hurricane Katrina

Timeline Tags: Hurricane Katrina

Winds have knocked down several utility poles and gusts up to 60 mph have been recorded in Port Sulphur, Louisiana (about 49 miles southeast of New Orleans), according to Plaquemines Parish Sheriff’s Office Col. Charles Guey. [Times-Picayune Blog, 8/28/2005]

Timeline Tags: Hurricane Katrina

Wind gusts, clocked at 80 mph, have knocked out the power in Grand Isle and Port Fourchon, and in south Plaquemines Parish, wind gusts have reached 74 mph, according to Louisiana Department of Transportation and Development representative Mark Lambert. [Times-Picayune Blog, 8/28/2005 Sources: Mark Lambert]

Entity Tags: 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

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