green- marginal, isolated severe storms possible isolated tornadoes possible. yellow- slight, high chance of isolated severe storms some storms could be powerful. Tornadoes and strong winds up to 60 mph and large hail 1.00"+ are more of a threat. orange- enhanced, better arranged severe thunderstorms with possibly long-tracked EF2 - EF5 tornadoes with hail larger than tennis balls 2.00 in diameter and wind gusts 75+ mph. red- moderate, very bad storms potentially life threatening with winds over 80 mph and hail over 3.50 in diameter (large orange) and Tornadoes that can be historically powerful, the Joplin tornado came from a moderate risk. pink- high, be extremely ready for long track tornadoes up to EF-5 and Winds over 95 mph and hail up to soccer ball sized 7.00" diameter.