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△National precipitation forecast map (Central Meteorological Observatory/Fa)
Beijing Express, July 1, People's Voice In the blink of an eye, the "summer solstice" of the traditional 24 solar terms has arrived. This week's (July 1-July 7) national weather stage, in the opinion of experts, there will be big changes in general; During the period from July 3 to 4, with the obvious westward extension and northward lifting of the subtropical high, the distribution of rain and heat shifted greatly. At the same time, the southern part of the Yangtze River and the middle and lower reaches of the Yangtze River changed from rainy to sunny and hot; In Huanghuai, North China and other places, there is a trend of decreasing high temperature and increasing rainfall. In addition, due to the eastward shift of the continental warm ridge, the high temperature in Xinjiang decreases, but the northern part of Heilongjiang increases.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
Experts said that monitoring data showed that from last night (June 30) to today (July 1), heavy rain - heavy rain occurred in southeastern Tibet, western Yunnan, eastern Guizhou, western and northern Hunan, southern Hubei, northern Jiangxi, and southern Anhui. During this period, Jixi, Anhui Province suffered heavy rainstorms for 4 days in less than 2 weeks. Another example is the heavy rainfall in Pingjiang, which is close to the extremely heavy rain, with a rainfall of 240.7 mm, which broke the record of the largest single-day rainfall in the history of local observation at 20 o'clock according to meteorological statistics, and the original record was 236 mm, which occurred on June 30, 2017.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
According to experts, judging from tonight's weather radar, there is still obvious convection moving eastward on the west side of the Pingjiang River; Therefore, there may be heavy rain in Pingjiang tonight. From the current forecast, it can be seen that the rain will gradually weaken during the day tomorrow (July 2) and the day after tomorrow (July 3); It is expected to clear on July 4. In addition, in the past 24 hours, the local convection in Shandong, Hebei and Beijing was strong, and there were also small areas of heavy rain - heavy rain. From the evening of July 1 to July 2, the cold vortex and rainfall merged with the rainfall of the low vortex shear line on the north side of the subtropical high, and continued to form a rain belt trending southwest and northeast. For this reason, the Central Meteorological Observatory on the evening of July 1 continued to issue an orange warning for heavy rain.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
It is worth noting that industry insiders emphasized that it is not difficult to find that the situation is also not difficult to find, as experts said, since July 3, the subtropical high has extended westward and northward, and the rainfall in the middle and lower reaches of the Yangtze River has weakened. From July 4th to 7th, the main rain belt will remain in Henan, Shandong, and northern Jiangsu and Anhui between the Yellow River and Huai River. On July 8, the rain band still lifted northward; And, there may be low-vortex activity; As a result, heavy rainfall occurred in the central and northern parts of Shaanxi, the southern part of Shanxi, the southern part of Hebei, the northern part of Henan, and the northern part of Shandong. However, due to the long term, the specific distribution of heavy rainfall may be adjusted later. However, from July 7th to July 8th, it should be the northernmost period of the main rain belt in the next few days; After July 9, the westerly trough carried cold air to suppress the southward fall of the subtropical high, and the rain band will also fall southward.
*Attached: Specific forecast
(Editor-in-charge/Xiangyu)
*Editor's Note:
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