A method implementing a probabilistic weather severity estimation system is provided. The method includes gathering meteorological information from a plurality of vehicles based on a non-periodic iteratively optimized communication method that at least in part takes into consideration an vehicle's position and heading in relation to a weather event. A probabilistic weather severity estimation for future weather conditions is calculated based at least in part on the gathered meteorological information and an assigning of computed probabilistic weather severity values to nodes in a matrix. Each node is associated with a respective part of space volume in which the plurality of vehicles are gathering the meteorological information.