The National Weather Service office in the Quad Cities is offering a class for those interested in becoming a weather spotter. On Monday, a weather spotter training course will be held from 6 to 8 p.m. at the Keokuk County Extension Office in Sigourney. The class will go over the general structure and movement of thunderstorms, identification of storm features and the hazards associated with thunderstorms and tornadoes. Pre-registration is not required.