Tribals in Agency areas of Visakhapatnam district will experience fog in rainy and winter seasons. But, tribals were surprised on witnessing fog in the summer season. They are seeing fog in the early hours of the last one week. Tribals are fearing of contracting diseases with the abnormal climatic conditions. Fall of fog in summer and heavy downpour in Agency areas are attributed to the formation of Cumulonimbus clouds and drop in temperature. Tribals were seen discussing unusual climate in the summer season.