According to the website of the National Meteorological Center, affected by a cold wave, from 8:00 on February 21 to 8:00 on February 23, most parts of southern China will experience temperature drops, with daily average or minimum temperatures generally falling by 6–12°C. Among them, in parts of southeastern Guizhou, southern Hunan, northern Guangxi, central Jiangxi and other areas, the cumulative temperature drop may exceed 20°C. From February 21 to 23, a large-scale rain and snow weather event will occur in the central and eastern regions.

　　Cold wave to affect southern China

　　Affected by the cold wave, from 8:00 on February 21 to 8:00 on February 23, most parts of southern China will experience temperature drops, with daily average or minimum temperatures generally falling by 6–12°C; in southeastern Southwest China, southern and central-eastern Jiangnan, central-northern South China and other areas, temperatures will drop by 12–18°C. Among them, in parts of southeastern Guizhou, southern Hunan, northern Guangxi, central Jiangxi and other areas, the cumulative temperature drop may exceed 20°C. Around February 23, the 0°C minimum temperature line will push southward to the area from southern Jiangsu and Anhui to southern Hunan and southern Guizhou. The National Meteorological Center continued to issue an orange cold wave warning at 6:00 on February 21.

National temperature drop forecast map (8:00 February 21 – 8:00 February 23)

National minimum temperature forecast map (8:00 February 21 – 8:00 February 23)

　　It is expected that from 8:00 on February 21 to 8:00 on February 23, parts of most of Tibet, western Qinghai, northern Gansu and other areas will have strong winds of force 5–6, with gusts of force 7–9; the Bohai Sea, Bohai Strait, most of the Yellow Sea, western East China Sea, northeastern South China Sea and Taiwan Strait will have northerly to northeasterly winds of force 7–8, with gusts of force 9. The National Meteorological Center continued to issue a blue gale warning at 6:00 on February 21.

　　Large-scale rain, snow and freezing weather to occur in central and eastern regions

　　From February 21 to 23, a large-scale rain and snow weather event will occur in the central and eastern regions. North China, Huanghuai, Jianghuai, Jianghan, northern and western Jiangnan and Guizhou and other areas will successively see rain turning to sleet or snow; in parts of western and southern North China, Huanghuai, Jianghan, Jianghuai and northwestern Jiangnan and other areas, there will be heavy to blizzards, with local severe blizzards; in eastern Jianghuai, central-northern Jiangnan and other areas, there will be moderate to heavy rain, with local rainstorms, accompanied by thunderstorms, short-term heavy precipitation, hail and other severe convective weather. The National Meteorological Center continued to issue a blue severe convective weather warning at 6:00 on February 21. From the 21st to the 23rd, parts of Shandong, Jiangsu, Henan, Anhui, Hubei, Hunan, Guizhou and other areas will successively experience freezing rain or ice pellets.

　　It is expected that from 8:00 on February 21 to 8:00 on February 22, parts of eastern and southern Shandong, central-eastern Henan, northern Anhui, northern Jiangsu, central-western and northeastern Hubei, northern Hunan, eastern Tibet and other areas will have heavy snow; among them, in eastern Shandong, eastern Henan, northern Anhui, northern Jiangsu, southwestern Hubei, northwestern Hunan, eastern Tibet and other areas, there will be local blizzards (10–15 mm). In some of the above areas, newly added snow depth will be 3–7 cm, with local areas reaching over 10 cm; in parts of southeastern Henan, central Anhui, northern Jiangsu, central-eastern and southern Hubei, northern Hunan, northwestern Jiangxi, eastern Guizhou, southeastern Chongqing and other areas, there will be freezing rain or ice pellets, with freezing rain amounts of 2–5 mm, and local areas exceeding 8 mm. The National Meteorological Center continued to issue a yellow blizzard warning and a yellow freezing warning at 6:00 on February 21.

National heavy snowfall area forecast map (8:00 February 21 – 8:00 February 22)

National freezing rain area warning map (8:00 February 21 – 8:00 February 22)

　　In addition, from daytime to nighttime on the 21st, there will be dense fog in the southwestern East China Sea, coastal waters of southern Zhejiang, coastal waters of Fujian and coastal waters of central-eastern Guangdong, with visibility of less than 1 km. In addition, from early morning to morning on the 21st, there will be dense fog in northern and southeastern Zhejiang, eastern Fujian and other areas, with local strong dense fog with visibility of less than 200 meters. The National Meteorological Center continued to issue a yellow fog warning at 6:00 on February 21.

　　Specific forecasts for the next three days in China

　　From 8:00 on February 21 to 8:00 on February 22, parts of southern Xinjiang, central-eastern Northwest China, central-western Inner Mongolia, central-western North China, Huanghuai, Jianghuai, Jianghan, most of the Qinghai-Tibet Plateau and other areas will have light to moderate snow or sleet; among them, in parts of central-eastern Henan, southern Shandong, northern Jiangsu and Anhui, northern Hubei and eastern Tibet and other areas, there will be heavy to blizzards (10–15 mm). In parts of central-eastern and southern Hubei, northern Hunan, eastern Guizhou, central Anhui, northern Jiangsu and other areas, there will be freezing rain. In parts of central-northern Jiangnan and other areas, there will be moderate to heavy rain; among them, in parts of northern Jiangxi, western Zhejiang, southern Anhui and other areas, there will be rainstorms (50–90 mm). In parts of western Gansu, central-western Tibet and other areas, there will be winds of force 4–6. The Bohai Sea, Bohai Strait and most of the Yellow Sea will have strong winds of force 7–8, with gusts of force 9–10.

National precipitation forecast map (8:00 February 21 – 8:00 February 22)

　　From 8:00 on February 22 to 8:00 on February 23, parts of central-eastern Northwest China, southern Henan, Jianghuai, Jianghan, northern and western Jiangnan, eastern Chongqing, the western Sichuan Plateau, most of the Qinghai-Tibet Plateau and other areas will have light to moderate snow; among them, in parts of central Anhui, central Jiangsu, southeastern Tibet and other areas, there will be heavy to blizzards (10–12 mm). In parts of northeastern Jiangnan, southeastern Tibet and other areas, there will be moderate to heavy rain. The Bohai Sea, central-southern Yellow Sea, western East China Sea and Taiwan Strait will have strong winds of force 7–8, with gusts of force 9–10.

National precipitation forecast map (8:00 February 22 – 8:00 February 23)

　　From 8:00 on February 23 to 8:00 on February 24, parts of southern Gansu, southeastern Shaanxi, western Huanghuai, Jianghuai, Jianghan, northern Jiangnan, southeastern Qinghai, eastern and southern Tibet and other areas will have light to moderate snow or sleet; among them, in parts of southeastern Tibet and other areas, there will be local heavy to blizzards. In parts of southeastern Tibet, northwestern Yunnan and other areas, there will be moderate to heavy rain. The East China Sea, South China Sea and Taiwan Strait will have strong winds of force 7–8, with gusts of force 9–10.

National precipitation forecast map (8:00 February 23 – 8:00 February 24)