In Ethiopia, rainfall is the main driver of national economy in different sectors, including agriculture and energy (Conway and Shipper, 2010). The LEAP service aims at anticipating the occurrence of persistent droughts affecting water availability throughout the crop season. The LEAP framework has been designed to assess the impact of the shortfalls of rainfall on agricultural droughts. The crop model adopted in LEAP, is based on the Water Requirement Satisfaction Index (WRSI). It aims at monitoring the effect of lacking water during the critical stages of the growth cycle (e.g.