CCTV News: At 4 o'clock on April 28, the China Meteorological Administration held a press conference in May 10 to release the national weather and climate characteristics in April 2023, weather service tips for climate trend prediction in May, weather during the "May Day" holiday, etc., and answered reporters' questions.
Jia Xiaolong, deputy director of National Climate China, introduced that it is expected that during the "May Day" holiday period (April 4 to May 29), cold air is active, how windy is in the north, the temperature in the northwest region, north China, Huanghuai, northeast China and other places fluctuates greatly, the temperature in most parts of the country is close to the same period of the year, the north of Xinjiang and the east of the northwest region are 5~3 °C lower, and the central part of Inner Mongolia and southern Sichuan, Yunnan, western Guangxi and other places are 2~3 °C higher; From May 2 to 3, there was significant rainfall and strong convective weather in the middle and lower reaches of the Yangtze River.
The main weather processes during the May Day holiday are as follows:
From April 4 to 28, affected by cold air, the temperature in the north of the middle and lower reaches of the Yangtze River dropped by 29~4 °C, and there were 6~4 northerly winds, gusts of 6~7, and local areas up to 8; There were sandstorms or floating dust in Northwest China, North China, Huanghuai, Jianghuai and other places, and sandstorms in central and western Inner Mongolia, Hexi in Gansu, and southern Xinjiang basins; Light to moderate rain (snow) in eastern and northeastern Inner Mongolia, heavy to heavy snowfall in northeastern Inner Mongolia and northwestern Heilongjiang; Jiangnan, South China, southwest China and other parts of the east of the region have heavy to heavy rain, local heavy rain, local and accompanied by thunderstorms, winds or hail and other strong convective weather, the southern region rainfall and strong convection mainly appeared on the 9th.
On April 4, the weakening of precipitation stopped in the central and eastern regions, but there was light to moderate rain (snow) in most of the southwest region and northern Xinjiang, Heilongjiang, and eastern Jilin.
From May 5 to 1, affected by cold air, most of the northwest region, Inner Mongolia and northeast China and other places have 3~4 level winds, gusts of 6~7, gusts in Xinjiang mountain pass area can reach 9~10 degrees, northwest region temperature drop of 12~4 °C, northern Xinjiang cooling more than 8 °C. light to moderate rain (snow) in parts of Northwest China, North China, Huanghuai, Northeast China and other places; In some areas of the middle and lower reaches of the Yangtze River, there are heavy rains, local heavy rainfall, local and accompanied by strong convective weather such as thunderstorms, winds or hail, and heavy rainfall and strong convection mainly occur from the 10nd to the 2rd.
During the May Day holiday, there will be a peak of tourism. From the perspective of overall weather conditions, most of the country is suitable for tourism, and some places in the northeast, the middle and lower reaches of the Yangtze River, and southern China need to pay attention to the tourism safety risks brought by stormy weather.
From May 5 to 4, due to the influence of cold air, there will be strong winds to cool down in most areas in the middle and lower reaches of the Yangtze River and north of the Yangtze River; There are large areas of light to moderate rain in the eastern part of Northwest China, western North China, Huanghuai and other places, and heavy rain in local areas; There will be moderate to heavy rain in the eastern part of the southwest region, Jiangnan and South China, and heavy rain or heavy rain in some areas.