At every moment weather changes itself. It is natural. Temprature, Humidity, Barometric Pressure-, Wind Speed, Wind Direction, U V Index and Ozone etc. are different for each place on the earth It is due to movement of the earth. All changes are taking place slowly and slowly. Due to Sun 's location and due to it's unstable conditions each moment earth gets changes at each moment every where. If we collect datas for these changes. It is very helpful to our researchers. Our scientists are able to understand the Earth system. They are able to announce weather alerts for a particular area. So blogs having weather details are very helpful to study the Earth system. How and Why these changes are taking place ? It is a serious point to search the Earth science now.