A new round of precipitation on the road in our province, the "arrival" time is ...

From June 20th to 22nd, the province's decentralized precipitation weather has a large land rainfall

Precipitation is beneficial to the current drought, but the drought will continue

Affected by the southern warm and humid airflow and weak cold air, most of the provinces have precipitated weather on the 20th to 22nd. The precipitation distribution is unevenly distributed, and the local rain is strong. For strong precipitation, some towns and villages have accumulated precipitation exceeding 50 mm. The precipitation is beneficial to ease the current drought, but the drought will continue. It is expected that from the 25th to 26th, our province has another precipitation process from west to east. There will be heavy rain in the local area of ​​Longnan City. Dingxi, Tianshui, Pingliang, Qingyang and other cities and states in the south of Baiyin City will have heavy rain. High temperature and drought also need to prevent the adverse effects of intensive precipitation on road traffic, urban operations, outdoor work and other possible mountain flood geological disasters.

Longnan encountered heavy rain today, and a bridge was washed away

1. Weather and service situation

Precipitation Live: 8:00 on the 20th to 10:00 on the 20th, most of the precipitation weather in our province, unevenly distributed precipitation, strong land rain, Zhangye, Gannan, Dingxi, Longnan, Tianshui, Pingliang, Qingyang and other places appeared in some parts of cities. In the middle to heavy rain, the northern part of Qingyang City, the central Pingliang City, the south of Dingxi City, the northern part of Longnan City, northern Tianshui City, and southern Linxia Prefecture appeared in a total of 20 towns and villages. A total of 34 short -term heavy precipitation appeared in Longnan, Pingliang, Qingyang, Dingxi and other cities. The smallest rain was 68.2 mm in Yangzhuang from 05 to 06:00 on the 22nd (Figure 1).

Early warning services: The meteorological department issued a total of 15 periods of various types of heavy rain early warning information, of which provincial -level issuance was issued with strong convective weather early warning; Pingliang, Qingyang, and Longnan each issued a heavy rain warning signal 1 period, of which Longnan City issued a red warning signal of heavy rain; 11 counties and districts issued heavy rain warning signals, of which Chengxian issued a red warning signal.

Shadow operation: A total of two aircraft rain increase operations are carried out, covering Jinchang, Wuwei, Lanzhou, Silver and other places. Jiuquan, Zhangye, Dingxi, Pingliang and other cities carried out ground rainfall operations at 13 o'clock, with a bomb consumption of 167 rounds; Pingliang City carried out ground hail prevention operations 1 point and 12 rounds of bullet consumption.

2. Analysis of precipitation impact

The process of precipitation weather is conducive to reducing the impact of large -scale high -temperature weather in the previous period of our province, which is good for alleviating the drought conditions of eased the northern part of Longzhong and Central, the northern part of Qingyang City, the Weihe River Basin of Tianshui City, and the west of Pingliang City. The average rainfall is small and cannot completely eliminate the impact of severe drought in the early stage on our province.

In addition, in the process of some cities and states in Hedong, a short -term precipitation, the smallest rainstorm reached 68.2 mm. At present, the intensity of short -term intensity of heavy precipitation and accumulating precipitation has gradually increased, increasing the weather disasters such as floods, floods, mudslides, and landslides caused by the small and medium rivers caused by it.

3. Future weather forecast

Precipitation: At present, the precipitation of our province is mainly concentrated in Longnan, Tianshui, Pingliang, Qingyang and other places. There are showers or thunderstorms, and they still mainly focus on divergent convection precipitation.

Affected by the cold and cold air, there was another precipitation process from west to east from the 25th to 26th. The strongest period of precipitation is in the early morning of the 25th to 26th. The strong precipitation is concentrated in the cities such as Longnan, Dingxi, Tianshui, Pingliang, Qingyang and other cities and southern banks. ～ 80mm; Dingxi, Tianshui, Pingliang, Qingyang and other cities and prefectures and southern Baiyin City have heavy rain, with a cumulative rainfall of 40mm to 60mm (Figure 2). In addition, the above local situations have short -term and heavy precipitation, and the rain is 20mm to 40mm.

Temperature: On the day of the 23rd to 25th, due to high -pressure spine, most of our province entered the rainstorm period. Among them, some places in the five cities in Hexi and white, Lanzhou, Linxia, ​​Pingliang, Longnan and other cities and prefectures will appear above 35 ° C. The highest temperature in western Hexi can reach 39 ° C.

Fourth, countermeasures and suggestions

1. The high temperature and rain from the 23rd to 25th. The current drought in the dry area may further intensify, and it is necessary to strengthen drought resistance and prevent high temperature work.

The process of precipitation weather from the night of the 25th to 26th is expected to further alleviate drought in all parts of our province, but the precipitation process has accumulated large rainfall and strong convectivity. Especially in the southeast of Long southeast, the possible small and medium rivers, floods, mudslides, mudslides, and mudslides, and mudslides. Geological disasters such as landslides.

3. It is necessary to prevent the adverse effects of precipitation on road transportation and urban operations. Pay attention to disaster weather such as thunderstorms and winds on outdoor high -altitude operations, outdoor sports, and water operations that may occur.

Source: Gansu Meteorological Bureau

Editor in charge: Yang Yang

Supervisor: Mu so strong

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