to play you simply press start, to clear the tornado tracks press clear tracks. The text in the center of the screen that either says MRGL, SLGH, ENH MDT or HIGH is the risk of the day, high being the biggest risk and MRGL being the lowest. The numbers to the left of the risk of the day is the windspeed of the tornado.
Original project - https://scratch.mit.edu/projects/113657717/ Incredibly heavily modified version of hoangkongs hurricane simulator, made to be a (pretty inaccurate) tornado simulator.