april This is a repeating eventapril 3, 2020 12:00 am 03aprAll Day04The April 3-4, 1974 Super Outbreak – Overview Event Details Detailed Super Outbreak tornado path and intensity analysis, hand drawn by Dr. T. Theodore Fujita of University of Event Details Detailed Super Outbreak tornado path and intensity analysis, hand drawn by Dr. T. Theodore Fujita of University of Chicago. 148 Twisters in 24 Hours. Detailed Summary