Throughout the globe observations are taken at three hours interval starting from 0000 [hrs UTC]. There are different charts that are prepared and based on the charts [1] High & Low pressure are plotted [2] prevailing winds direction and speed are noted [3] and other meteorological and basic weather parameters like surface air temperature, rainfall etc are incorporated in surface chart. Later this chart is being analysed. Similarly upper air charts are also plotted analysed. Then the meteorological parameters are fed into models which uses dynamical equations, hydro static equations and the equations of motions and climatology of the region to evoluvate weather.The model out put is used for forcast.Then based on their experience and based on the climatology of a place a forcast is evolved. However some time, alas, whether parameters drastically change [especially in tropical areas] amd of course the result also varies. (You are right.)
Predicting weather is a NOT a easy job.
Posted by Mr. Anonymous for Indianweatherman.com
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