A system for warning a flight crew of potential runway overruns during landing comprises a computer processor implementing at least one neural network comprising plural inputs and at least one output. The inputs comprise at least one or more of the following: pressure altitude, air temperature, wind speed, weight, calibrated airspeed, autobrake setting, runway slope, and runway condition. The system uses the neural network to continually calculate at least the remaining distance on the runway and to generate an alert when the remaining distance is insufficient.