Weather radar is one of the most useful tools available to meteorologists or anyone wondering if it is going to rain! From its early beginnings during World War Two, to the advanced equipment used today, weather radar provides vital information for forecasting, severe weather tracking and atmospheric research.  This month, Noel speaks with radar meteorologist, Sinéad Duffy. Sinéad talks us through how weather radar works, how it was discovered and improved over time and details some of the major upgrades coming soon to the Irish radar network.