T. Theodore Fujita was a Japanese-American meteorologist known for his groundbreaking work in the field of severe weather. He is best recognized for developing the Fujita Scale, which classifies the intensity of tornadoes based on the damage they cause. This scale has been instrumental in understanding tornado strength and improving safety measures. Fujita was born on March 23, 1920, in Osaka, Japan, and later moved to the United States, where he conducted significant research at the University of Chicago. His contributions to meteorology have had a lasting impact, influencing both scientific research and public awareness of severe weather phenomena.