Typhoon "Siamba" will affect strong convective weather in southern China, Huanghuai, northern China and other places

　　China News Service, July 1st. Around July 2, due to the influence of Typhoon "Siamba" and its peripheral circulation, there will be relatively heavy wind and rain in southern my country and its southern waters. Heavy to heavy rain, some areas have heavy rain or extra heavy rain.

In the next two days, strong convective weather will mainly be concentrated in southern North China, Huanghuai and surrounding areas, and central and southern South China. There will be thunderstorms, strong winds or hail weather of magnitude 8-10 in some areas.

Yesterday, scattered heavy rainfall occurred in Guangxi, Jiangxi, Jilin and other places

From 08:00 yesterday to 06:00 today, the areas of heavy rainfall were extremely scattered, including western Yunnan, Guangxi, central and eastern Guangdong, Guizhou, southern Hunan, southern and northeastern Jiangxi, Fujian, western and southern Zhejiang, northern and southeastern Jiangsu and Anhui, and Henan. Scattered heavy rains or torrential rains occurred in parts of the western and northern parts, Shandong, central and southern Hebei, Beijing-Tianjin, eastern Liaoning, southeastern Jilin, western Heilongjiang, southeastern Inner Mongolia, eastern Hainan Island, and Taiwan. Shangrao in Jiangxi, Jiaxing and Hangzhou in Zhejiang , Quzhou, Lishui and Wenzhou, Anhui Chizhou and Xuancheng, Jiangsu Suzhou and Nantong, Shandong Zaozhuang, Weifang, Binzhou and Yantai, Hebei Handan and Langfang, Beijing Pinggu, Liaoning Dandong and other local heavy rainstorms (100-221.3 mm); the above part The maximum hourly rainfall in the region is 50-97 mm; there are thunderstorms and strong winds of magnitude 8 to 10 and local level 11 in southeastern Inner Mongolia, central Shandong, southern Hebei, southern Shanxi, northern Jiangsu and Anhui, southwestern Chongqing, and southeastern Sichuan; Hailstorms occurred locally in the southeast, southern Shaanxi, and southern Shanxi.

Typhoon "Siamba" will affect southern China

　　Around July 2, due to the influence of Typhoon "Siamba" and its peripheral circulation, there will be relatively heavy winds and rains in southern my country and its southern waters. There will be heavy to heavy rains in Guangxi, the southern coast of Guangdong, Hainan Island and other places, and heavy rains in some areas. or heavy rain.

From the 4th to the 6th, due to the slow movement of the typhoon circulation, some areas in Guangxi, southern Guizhou and eastern Yunnan will experience heavy to heavy rain successively, and local heavy rain.

　　This year's No. 3 typhoon "Siamba" intensified from a tropical storm to a severe tropical storm yesterday night, and its center was located about northeast of Sansha City (Xisha Yongxing Island) in Hainan Province at 5:00 am today (July 1). On the 250-kilometer-long sea surface in the central part of the South China Sea, the maximum wind force near the center is level 10 (25 m/s), the minimum pressure in the center is 980 hPa, and the radius of the seventh-level wind circle is 180-200 kilometers.

It is expected that "Siamba" will move to the northwest at a speed of 15-20 kilometers per hour, and the intensity will gradually increase. It will land on the coast from the eastern part of Hainan Island to the western part of Guangdong from the afternoon to the night of July 2 (strong tropical storm level or typhoon level, level 10-12, 28-33 m/s).

From 08:00 on July 1 to 08:00 on July 2, there were heavy to heavy rains in Hainan Island, southern Guangdong, southeastern Guangxi, and southern Fujian coastal areas. Among them, most of Hainan Island and parts of southern Guangdong had heavy rains (100- 180 mm).

continued to issue a yellow typhoon warning

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Figure 1 Forecast map of typhoon track (05:00 on July 1st - 05:00 on July 5th)

Strong convective weather in Huanghuai, North China and other places

　　In the next three days, there will be polydisperse heavy precipitation in the central and southern parts of Northeast China, North China, Huanghuai, Jianghuai, Yunnan and other places, with moderate to heavy rain and local heavy rain in some areas.

　　In the next two days, strong convective weather will mainly be concentrated in southern North China, Huanghuai and surrounding areas, and central and southern South China. There will be thunderstorms or hail weather of magnitude 8-10 in some areas. North China, Huanghuai, northern Jiangnan, central and southern South China, and southwest China There will be short-term heavy precipitation in parts of the southeastern part of the region, with an hourly rainfall of 20-50 mm, and local rainfall of more than 70 mm.

It is expected that the main impact period of the strong convection will be from afternoon to night today

(see Figure 2)

Figure 2 National thunderstorm gale or hail forecast map (08:00 on July 1st - 08:00 on July 2nd)

　　From July 2 to 5, there was a moderate to heavy rain from west to east in the Sichuan Basin, Shaanxi, Shanxi, Beijing-Tianjin-Hebei, Henan, Shandong, central and eastern Inner Mongolia, and northeastern regions, and there were local torrential rains in Beijing-Tianjin-Hebei and other places.

From the 6th to the 8th, most of the Northeast region still has multiple showers of rain.

Specific forecast for the next three days

From 08:00 on July 1 to 08:00 on July 2,

there were heavy to heavy rains in parts of Hainan Island, southern Guangdong, southeastern Guangxi, southern Fujian coast, eastern and southern Liaoning, Shandong Peninsula, northern Jiangsu, and central Sichuan Basin. , There are heavy rainstorms (100-180 mm) in most of Hainan Island and parts of the southern coast of Guangdong.

In parts of central Inner Mongolia, Liaodong Peninsula, Shandong Peninsula, northeastern Zhejiang, the southeastern coast of Guangxi, the southern coast of Guangdong, and most of Hainan Island, there are strong winds of magnitude 4 to 6 and local strong winds of magnitude 7 to 8 (see Figure 3).

Figure 3 National precipitation forecast map (08:00 on July 1 - 08:00 on July 2)

From 08:00 on July 2 to 08:00 on July 3,

there were heavy to heavy rains in parts of central Jilin, northern Liaoning, northern Shaanxi, central Sichuan Basin, central and southern South China, and Hainan Island. There are heavy rainstorms in parts of northern Hainan Island and other places, and local heavy rainstorms (250-260 mm).

There are winds of magnitude 4 to 6 in the coastal areas of South China and most of Hainan Island. Among them, there are winds of magnitude 7 to 8 in parts of the coastal areas of the south and west of Guangxi (see Figure 4).

Figure 4 National precipitation forecast map (08:00 on July 2nd - 08:00 on July 3rd)

From 08:00 on July 3 to 08:00 on July 4,

there were heavy to heavy rains in parts of most of South China, eastern North China, central and northern Henan and other places. Among them, there were heavy rainstorms in parts of central and southern Guangxi, south-eastern Guangxi and other places, and the local area was extremely heavy. Heavy rain (250-270 mm).

There are winds of magnitude 4 to 6 in central Inner Mongolia, the Liaodong Peninsula, the coast of South China, and most of Hainan Island. Among them, there are winds of magnitude 7 to 8 in parts of the southern coast of Guangxi (see Figure 5).

Figure 5 National precipitation forecast map (08:00 on July 3rd - 08:00 on July 4th)