Instead, letâs express these unique differences as a vector: 1  The size of the cross product is the numeric âamount of differenceâ (with sin(theta) as the percentage) 2  The direction of the cross product is based on both inputs: itâs the direction orthogonal to both (i.e., favoring neither)
Main Content. Hurricane Katrina was a long-lived hurricane that made landfall three times along the United States coast and reached Category 5 at its peak intensity. The storm initially developed as a tropical depression in the southeastern Bahamas on August 23, 2005. Two days later, it strengthened into a Category 1 hurricane a few hours before making its first landfall between Hallandale Beach and North Miami Beach, Florida.
With winds of about 40 mph (65 kph), the storm was named Tropical Storm Katrina. By the time it made its way to southern Florida on Aug. 25, Katrina was a moderate Category 1 hurricane.he storm weakened to a Category 3 storm before making landfall along the Louisiana-Mississippi border on the morning of Aug. 29 with sustained winds of 120 mph (193 kph). Katrina weakened to a Category 1 hurricane after moving inland over southern and central Mississippi.