New Orleans, for one, has probably never been better prepared for a hurricane. Gulf Coast, but some predictions can be ventured. Isaac: Isaac has already damaged 2,346 homes, destroyed 335, and caused 24 deaths in Haiti.It is too early to gauge the hurricane's impact on the U.S. When it hit Louisiana, the storm had been downgraded to a Category 3 hurricane and boasted maximum wind speeds around 127 mph (204 kph), still a major hurricane. Its maximum sustained winds reached speeds of around 173 mph (278 kph), and then slowed before making landfall. In the Gulf of Mexico, Katrina grew into a Category 5 hurricane - the strongest storm category there is. It stayed a tropical storm for a week, then finally reached the status of Category 1 hurricane today, when its maximum sustained winds picked up to 75 mph (121 kph). Isaac: Isaac has not grown in intensity as much or as rapidly as predicted. That's almost half the size of the continental United States. (Hurricanes in the western Pacific Ocean are called typhoons.) The 1979 storm, which made landfall in southern Japan, was nearly 1,400 miles (2,253 km) wide at one point. Incidentally, the biggest hurricane ever recorded was Typhoon Tip. Katrina measured about 400 miles (644 km) wide when it made landfall in Louisiana. Katrina: The 2005 storm was similarly sized. The National Hurricane Center predicts up to 20 inches (50 centimeters) of rainfall in some places and a storm surge as high as 12 feet (3.5 meters). (Typical hurricanes measure 300 miles, or 483 km, across.) Isaac's extra girth will mean more rainfall when it bears down on the coast, as well as a strong storm surge, or rise in the seawater level beneath the storm caused by its winds. Isaac: Isaac is bigger than most storms, measuring more than 400 miles (644 km) wide as of Aug. The storm kept weakening as it moved north, finally dying out around the Great Lakes region Aug. 29 near Buras, La., about 50 miles (80 km) southeast of New Orleans. Katrina made its Gulf landfall on the morning of Aug. It gained strength for a few days from the warm waters, then arced north to the coast. 25, then peeled westward through the Gulf of Mexico. The hurricane made landfall in southeast Florida on Aug. Katrina: Katrina took a more curvaceous path. ![]() ![]() It is then projected to move inland over Arkansas and Missouri and then possibly over the northern Midwest. Isaac's path is projected to take it to a landfall along the southeast coast of Louisiana. It veered slightly left early on to sweep over Puerto Rico, the Dominican Republic, Haiti and Cuba, but then made a straight shot northwest across the Gulf of Mexico, drenching Florida en route. Isaac: Almost from the moment it formed, Isaac has chugged toward the U.S. ![]() Katrina became the fifth hurricane of the 2005 Atlantic season when it was upgraded the very next day. 24, 2005, when it was a tropical storm about 65 miles (105 km) east-southeast of Nassau in the Bahamas. Katrina: Katrina gained strength much more rapidly than Isaac. 28), becoming the fourth hurricane of 2012. Isaac passed that mark midday today (Aug. A tropical storm becomes a hurricane once its top winds hit at least 74 mph (119 kph).
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