China News Service, July 3. According to the website of the Central Meteorological Observatory, from the 3rd to the 6th, due to the combined influence of typhoon "Siamba" and its weakened low-pressure circulation and westerly trough, Guangdong, Guangxi, Hunan, Hubei and Henan , Shandong and northern Jiangsu and Anhui will have heavy rainfall successively.

In addition, the northern region has more precipitation process.

The northward movement of typhoon "Siamba" affects South China, Jiangnan and other places

　　This year's No. 3 typhoon "Siamba" moved into Guangxi with the intensity of a strong tropical storm yesterday (2nd) night, and then weakened to a tropical storm level. Its center is located in Yulin, Guangxi at 5 am today (3rd). , is 22.9 degrees north latitude, 110.3 degrees east longitude, the maximum wind force is 8 (20 m/s), and the central minimum pressure is 986 hPa.

It is expected that "Siamba" will move to the north at a speed of about 10 kilometers per hour. It will gradually turn to the north-east direction tonight, and the intensity will gradually weaken. It will move into Hunan with the intensity of a tropical low during the day on the 4th.

Affected by it, from 08:00 on July 3 to 08:00 on July 4, there will still be strong winds of magnitude 6-7 and gusts of magnitude 8-9 in most of the South China Sea, Guangdong and Guangxi coasts.

　　From the 3rd to the 6th, due to the combined influence of "Siamba" and its weakened low-pressure circulation and westerly trough systems, heavy rainfall occurred successively in Guangdong, Guangxi, Hunan, Hubei, Henan, Shandong and northern Jiangsu and Anhui.

Among them, from 08:00 on July 3 to 08:00 on July 4, there were heavy to heavy rains in most of Guangdong, central and eastern Guangxi, most of Hunan, and southern Hubei. Among them, there were heavy rains in parts of eastern Guangxi and western Guangdong (100 ~ 140 mm), some of the above-mentioned areas are accompanied by short-term heavy precipitation (the maximum hourly rainfall is 30-60 mm, and the local area can exceed 70 mm), and there are local strong convective weather such as thunderstorms and strong winds.

The Central Meteorological Observatory issued a blue typhoon warning at 06:00 on July 3, and continued to issue a yellow warning for heavy rain.

Track probability forecast map of typhoon "Siamba" (05:00 on July 3rd - 05:00 on July 5th)

Forecast map of heavy rainfall areas across the country (08:00 on July 3rd - 08:00 on July 4th)

The more precipitation process in the northern region

　　From the 3rd to the 4th, there were moderate to heavy rains from west to east in Beijing-Tianjin-Hebei, Henan, Shandong and other places, and there were local heavy rains in northern Beijing, northeastern Hebei, northern Henan, and western Shandong, accompanied by short-term heavy precipitation, Strong convective weather such as thunderstorms, strong winds or hail.

　　From the 5th to the 8th, there will be strong rainfall in North China, Northeast China, eastern Inner Mongolia and other places, accompanied by strong convective weather.

　　Around 10 days ago, there was another precipitation process in North China, Huanghuai and other places.

Specific forecast for the next three days

　　From 08:00 on July 3 to 08:00 on July 4, there were heavy to heavy rains in most of Guangdong, central and eastern Guangxi, most of Hunan, and southern Hubei. Among them, there were heavy rains in parts of eastern Guangxi and western Guangdong (100-140 mm), some of the above-mentioned areas are accompanied by short-term heavy precipitation (the maximum hourly rainfall is 30-60 mm, and the local area can exceed 70 mm), and there are local strong convective weather such as thunderstorms and strong winds; in addition, northern and eastern Henan, northern Anhui, There are heavy to heavy rains in parts of western and northern Shandong, Beijing-Tianjin-Hebei and other places, accompanied by strong convective weather locally.

National precipitation forecast map (08:00 on July 3rd - 08:00 on July 4th)

　　From 08:00 on July 4 to 08:00 on the 5th, there were moderate to heavy rains in parts of most of southern China, western Jiangnan, most of Jianghan, western Huanghuai, southern Yunnan, Taiwan Island, etc. Among them, southern Henan, central Hubei, Hunan There are heavy rains and local heavy rains (100-120 mm) in parts of the north, eastern Guangxi, northern and western Guangdong and other places.

National precipitation forecast map (08:00 on July 4th - 08:00 on the 5th)

　　From 08:00 on July 5th to 08:00 on the 6th, most of southern China, eastern North China, most of Huanghuai, northern Jiangsu, central and northern Anhui, eastern Hubei, central and eastern Hunan, southern Yunnan, most of Taiwan Island and other places Moderate to heavy rain, among which, there are heavy rains in parts of southern Shandong, eastern Henan, northern Anhui, northern Jiangsu, eastern Hubei and other places, and local heavy rains (100-130 mm).

There are winds of magnitude 4 to 6 in parts of central and western Inner Mongolia, and winds of magnitude 6 to 7 in parts of the southern Xinjiang Basin and eastern parts of Xinjiang.

National precipitation forecast map (08:00 on July 5th - 08:00 on the 6th)