Hello how may I help you? Is there a thunderstorm that is supposed to happen today ? Well first off can you tell me your location Pasadena, california Hold on give me sec to look up that information for you Are you therre? yes According to forecast it was expected to be thunderstorms that is no longer the case. It just going to be cloudy Why ? The forecast changes from time to time. Things are not as always solid in terms of forecast Ok. thanks Anything else?