In parallel with the US HIWC and European HAIC projects, the European Organization for Civil Aviation Equipment (EUROCAE) Working Group WG-95 (Long Range Awareness subgroup), in association with the RTCA Special Committee SC-230, was tasked with demonstrating the maturity and the feasibility of using an X-band radar system for long-range detection of ice crystal conditions. This feasibility study document details the context of the study and a description of the intended function (situational display of regions ahead of the aircraft that present potential hazards to the aircraft due to ice crystals).