At 16:00 on July 11, the Changdu Meteorological Observatory of Xizang issued a blue warning signal for heavy rainfall: affected by the shear line, it is expected that from 17:00 on July 11 to 17:00 on July 12, some towns in Gongjue, Chaya, Luolong, Zuogong, Mangkang, Basu, Jiangda and other places will have moderate to heavy rain (17-38mm), and other places will have light to moderate rain. During the process, there is a high risk of short-term heavy rainfall, thunderstorms, strong winds, hail, and other severe convective weather. Defense measures: 1. It is necessary to strengthen the inspection and elimination of hidden geological hazards, and prevent secondary disasters such as local flash floods, geological disasters, and urban and rural waterlogging that may be caused by heavy precipitation. 2. Prevent the adverse effects of heavy rainfall on major construction projects, communication facilities, transportation, etc. 3. Pay attention to preventing the adverse effects of severe convective weather on agricultural and animal husbandry production, outdoor activities (construction sites, high-altitude operations), etc.
西藏昌都市气象台于7月11日16时00分发布强降雨蓝色预警信号：受切变线影响，预计7月11日17时至12日17时贡觉、察雅、洛隆、左贡、芒康、八宿、江达等地的部分乡镇有中到大雨（17～38毫米），其余各地有小到中雨。过程期间易出现短时强降水、雷电、雷暴大风、冰雹等强对流天气。 防御措施：1.需加强地质灾害隐患点的巡查排险，防范强降水可能引发的局地山洪、地质灾害及城乡内涝等次生灾害。2.防范强降水对重大工程建设、通讯设施、交通运输等带来的不利影响。3.注意防范强对流天气对农牧业生产、户外活动（工地施工、高空作业）等的不利影响。
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