IMS ARWIS - airport runway weather information system – is an automated system for measuring, collecting, storing and disseminating of the airport runway weather data to provide necessary information about state of the runway surface. In the system there is a forecasting model implemented that computes future conditions on runways.

With the help of observations provided by a weather station and the atmospheric forecast, forecast model can, amongst other things, predict the runway conditions with particular interest such as: freezing rain, accumulation of snow, frost and thaw. Forecast is runway surface temperature, runway subsurface temperature, air temperature, dew point temperature, precipitation on runway and runway condition.