In order to deal with such key issues as the severe weather monitoring, identification and alarming, joint disastrous weather defense, operational guidance and feedback, products sharing, intensive operation management, etc., in base level meteorological offices, a severe weather monitoring and warning platform is designed and discussed based on the B/S architecture, using Web, GIS, and database technology, combined with the existing MICAPS. The platform is used broadly in Shandong in meteorological services for weather processes and major events, such as meteorological emergencies. The platform is fit for not only the modern weather forecasting service development of at the provincial, municipal, and county levels, but also for the intensive operational processes.