The U.S.'s Worst hurricane
Hurricane Katrina was a category 5 hurricane that started from a tropical storm on August 24, 2005. It transformed into a full blown hurricane on August 25, 2005, and landed the same day. Formed from the Gulf of Mexico, The longitude and latitude was 26ºN, and 79.9ºW.
Hurricane Katrina's Strength was unmatched
Hurricane Katrina was probably the U.S.'s strongest hurricane, with wind max wind speeds of 140 mph, with a central pressure of 920 mbar. Of course there were high tides as well, The highest storm tide being 27.8 ft. Hurricane Katrina accumulated over 15 inches of rainfall total.
Now, Of course a Hurricane this extreme came with extreme damages. Hurricane Katrina pretty much destroyed the city of New Orleans, Leaving 1,833 casualties and 81 billion dollars in property damages.