The invention discloses a short-term early warning system for strong convective weather, comprising: a business management module, realizing shift registration, system logs, forecast scoring, and business processes; a data preprocessing module, real-time data collection, data quality control, and data preprocessing And strong convective weather diagnosis; short-imminent forecast and early warning module, realize weather background and case library, strong convective monitoring and analysis, strong convective potential forecast, strong convective short-impending forecast, forecast and early warning product production; product distribution module, realize product packaging, Early warning information broadcast, SMS / audio service, fax / email. The invention constructs basic information, statistics the strong convective occurrence factors in the Tibet area in recent years; studies the large-scale conditions of the strong convective weather in the Tibet area, and delineates different circulation patterns in different areas; uses the synthetic analysis method to synthesize the characteristics of the environmental field and establish early warning The model has higher forecast accuracy and longer forecast timeliness for strong convective weather in Tibet.