R-PAS is a joint collaboration among universities, public institutes and research centers to supply pollen information for different target groups (i.e. public, stakeholders) in the Pannonian biogeographical region, the hot spot of ragweed infestation in Europe. R-PAS was initiated by the National Public Health Institute in 2014. Recently, R-PAS provides daily ragweed pollen concentration forecast on a high resolution map. Categories based on symptom threshold values are depicted on the maps, in order to achieve a clear, simple and informative way of risk communication. The forecast maps are generated twice a week (Monday, Wednesday and Friday).