Core Points - On April 12, significant strong convective weather occurred in most parts of Guangdong, with moderate to heavy rain in the central and northern counties, and local heavy rain in other areas [1][3] - Wind speeds reached levels of 7 to 9, with localized gusts of 10 to 12, affecting most counties except for the southwestern regions [1][3] - The weather forecast predicts sunny to partly cloudy conditions from April 13 to 15, with temperatures expected to drop by 3 to 6 degrees Celsius due to cold air influence [5][6] Weather Conditions - From 8 AM to 5 PM on April 12, nine towns recorded over 50 mm of rainfall, while 222 towns recorded between 25 mm to 50 mm of heavy rain [3] - The highest recorded rainfall was 61.6 mm in Heyuan and 60.1 mm in Shaoguan [3] - Wind speeds included gusts exceeding 24.5 m/s (10-level wind) at eight meteorological stations, and 20.8 m/s to 24.5 m/s (9-level wind) at 59 stations [3] Temperature Changes - The maximum temperatures in southwestern counties increased by 1 to 2 degrees Celsius compared to April 11, while other areas saw a decrease of 1 to 4 degrees Celsius [3][4] - The highest temperature recorded was 33.7 degrees Celsius in Zhanjiang [4] Future Weather Forecast - The forecast for April 13 to 15 indicates mostly sunny weather, with minimum temperatures ranging from 10 to 14 degrees Celsius in northern Guangdong and 18 to 20 degrees Celsius in the western counties [5] - On April 15, the minimum temperatures are expected to be between 11 to 14 degrees Celsius in northern Guangdong and 17 to 20 degrees Celsius along the western coast [5] Marine Weather Conditions - A marine wind forecast indicates north winds of 6 to 8 levels with gusts of 9 to 10 levels on the night of April 12, transitioning to northeast winds of 5 to 7 levels during the day on April 13 [6] - The weather department advises caution for coastal tourism, marine operations, and transportation safety due to strong winds [6]

受突发强对流天气影响，今日珠江口及港珠澳大桥海域出现短时强降水、雷暴大风，严重威胁水域通航 安全。目前港珠澳大桥水域风力已达6级，为确保船舶航行安全，港珠澳大桥海事局于17时00分启动交 通管制，禁止内河船通过港珠澳大桥桥梁航道。海事部门特别警示，12日夜间珠江口水域将有8级以上 阵风，所有航经大桥船舶须严格遵守管制指令，严禁冒险进入管制水域；锚泊船舶须加固系泊设备，保 持24小时人员值守防止走锚；如遇突发险情，立即通过VHF16频道报告或拨打12395水上遇险求救电 话。(央视新闻) ...

中央气象台首席预报员董全表示，这是3月天气的突出特点。"3月本就是温度起伏剧烈的时候。这 一时期气温在回升，冷空气势力也比较强，所以冷暖交汇比较剧烈，时冷时热属正常现象。"他说，与 此同时这段时间气旋发展强烈，与其后的高压之间形成较大气压差，容易出现大风天气。 气象专家提醒，寒潮过程前后气温起伏剧烈，建议公众及时根据气温变化调整着装。北方地区需关 注大风的不利影响，若外出要远离临时搭建物、广告牌等，谨防高空坠物，并做好防护措施防范沙尘天 气影响；南方地区需防范局地雷暴大风等强对流天气对交通出行的不利影响。 由于前期气温显著偏高，寒潮到来后气温将显著下降。以浙江杭州为例，26日最高气温达36℃，但 两天后最高气温预计仅有13℃，不少网友调侃"这温度真是满30减20"。本轮过程最低气温将出现在29日 夜间至30日凌晨，最低气温0℃线将位于华北南部至秦岭一带。 一会儿穿棉袄，一会儿穿短袖，春天多变的天气让大家猝不及防。 多地气温"大跳水" 厚衣服快翻出来 新华社北京3月26日电（记者黄垚）"轰轰烈烈"的大回暖后，未来几天多地将迎大幅降温。据中央 气象台预报，寒潮将陆续影响我国大部地区，气温变化剧烈，北方地区将多大风 ...

Weather Impact Summary - A cold air mass continues to affect central and eastern China, with widespread rainfall expected in the south and the development of rain and snow in the north over the next two days [1][7] - In Beijing's Yanqing District, snowfall was reported, with temperatures expected to drop below 0 degrees Celsius [2][8] - Hebei Province experienced snowfall in Zhangjiakou and Chengde, with temperatures also falling below freezing, prompting traffic safety measures [3][9] - Qinghai Province saw new snowfall, with the maximum snow depth reaching 8 centimeters in Delingha, leading to traffic disruptions [4][11] - Gansu Province experienced a new round of cooling and precipitation, beneficial for soil moisture during the critical spring period for winter wheat [5][12] - Jiangxi Province faced severe convective weather, with strong winds causing significant damage to crops and infrastructure [6][13] - Hunan Province was hit by hailstorms, with the weather forecast indicating continued rain and temperature drops [7][13]