After a tranquil evening, thunderstorms are expected to rapidly develop along I-70 over eastern Kansas, and spread eastward across the Kansas City metro after midnight. Conditions appear favorable for storms to become severe (large hail and damaging winds), as well as a strong likelihood of training storms to produce torrential rainfall. Rainfall amounts of 1-3" are possible overnight which could lead to flash flooding. We are urging you to keep a weather radio and your cell phone handy