Since the early hours of this morning, a 500 to 600-kilometer-long squall line has moved eastward from Hunan to the south, affecting our province. At around 7 a.m., the squall line had entered Huicheng District from the northern part of Longmen County, affecting the whole city from northwest to southeast. Affected by this, thunderstorms will always accompany during the May Day period.
It is understood that the squall line mostly occurs in the warm zone before the cold front in the spring-summer transition season, mostly from March to September. Squall lines are usually accompanied by severe convective weather such as thunder, lightning, squalls, torrential rain, hail and tornadoes.
Huizhou Meteorological Observatory forecaster Huang Chuxian: There is still more obvious precipitation in our city in the early stage of May Day, including heavy to heavy rain and local heavy rain on the 1st, moderate to strong thunderstorms and local heavy rain on the 2nd, and the precipitation will be slightly less on the 3-4th, there is still strong convective weather, and the precipitation tends to be obvious on the 5th, moderate to strong thunderstorms and local heavy rains.
Special reminder that since the flood season, strong convection and heavy rainfall have occurred frequently and strongly, and the soil moisture content is high. With May Day approaching, the flow of people, logistics and vehicles is highly concentrated, so it is necessary to pay attention to geological disasters, flood risks in the Dongjiang River basin and small and medium-sized rivers, strengthen the prevention of urban and rural waterlogging, and prevent safety risks caused by strong convective weather such as short-term strong winds, lightning strikes and hail.
Heavy rain and strong convective weather that lasted for many days caused flooding of varying degrees in many counties and districts of our city. Recently, the Municipal Center for Disease Control and Prevention has activated the post-disaster emergency response plan and carried out prevention, control and sanitization work in severely affected townships for many days, standardized epidemic prevention treatment for dead poultry animals, and sampling drinking water in residents' homes. The CDC reminds the public not to drink water from unknown sources or contaminated water, especially from wells that have not been tested and disinfected.
Wu Junjun, deputy chief physician of the Department of Environment and School Health of the Municipal Center for Disease Control and Prevention: If the flood floods the tap water pipes, there is a possibility that there will be a siphon phenomenon, causing the flood water to pour into the pipes, causing pathogenic microbial contamination, which is also not recommended for drinking. Make sure not to drink raw water, boiled water and bottled water.
After the rainstorm, the drinking water may appear mildly turbid and have the pungent smell of disinfectant in the short term, the public does not need to panic, the dosage of disinfectant can ensure safety, and the odor can be eliminated by increasing the boiling time appropriately.
In terms of epidemic prevention, according to the CDC, the infectious diseases that are prone to occur after flooding mainly include: intestinal tract, respiratory tract, insect-borne infectious diseases, skin and soft tissue infections, etc. Dysentery, typhoid fever and cholera, which are easily induced by intestinal infection, should be paid special attention. If you have more than 3 times of diarrhea in a day after the flood, and the stool quality changes, accompanied by abdominal pain, bloating and other symptoms, it is likely that you have infectious diarrhea.
Xiong Yingcong, deputy chief physician of the Department of Infectious Disease Prevention and Control of the Municipal Center for Disease Control and Prevention: Once symptoms such as fever, vomiting, and diarrhea appear, you should seek medical attention as soon as possible.
It is recommended that the affected people clean up the indoor water, sludge and garbage in a timely manner, clean and disinfect the indoor environment and items, and use chlorine-containing disinfectants, peracetic acid and other disinfectants for disinfection.
Xiong Yingcong, deputy chief physician of the Department of Infectious Disease Prevention and Control of the Municipal Center for Disease Control and Prevention: Diseases such as dengue fever, Japanese encephalitis, malaria and other diseases are usually transmitted by mosquito bites.
All-media reporters: Huang Zizhen, Long Kui, Zhu Wanting, Zhao Zichen