Just watch. Might get updated in the future. Risk: The higher it is, the more likely of stronger tornadoes and tornadoes are more often the higher it is. Hour: Hour of the day, EST. Big number is the damage caused by tornadoes in thousands. Tornado icons do get larger the more mph they have.
Update 2: August 16th, 2020 - Tornado history (Categories) press F to show and hide them. Press space to show variables and press a to hide them. Press B to clear tracks.