Topic. Based on the assumption that short-term climatic variations are nonchaotic, and, therefore, the paradigm of the limited predictability of weather formulated by E.N. Lorenz is not applicable to these variations, a question is posed about the unlimited predictability of the short-term climatic variations. It differs from the opinion generally accepted in climatology now that atmospheric motions of all time scales, beginning from daily weather variations, and including interannual, centennial and even millennial variations of climate are unstable. Aim.