Why can’t meteorologists accurately forecasts far in advance ?

Weather forecasting has made significant progress in the past number of years with the help of a better understanding of the atmosphere, better technology and thus better forecasting. We have a much better handle on forecasting the weather for the long-term but are even better for the short-term. Even with all of the advances in brain power and computer power, why do some forecasts go awry and why do our forecast accuracy decrease the further out in time we go? To answer this, let’s briefly touch on the time range of a weather forecast. A short-range forecast is up to…