65438+On February 28th, Tangshan Meteorological Observatory issued a warning signal of cold wave and strong wind.
Tangshan Meteorological Observatory issued the blue warning signal of gale on February 28th, 2020 10: 08: Due to the influence of cold air, it is estimated that there will be 4-5 gusts of northerly winds in the inland areas of our city from tonight to tomorrow, and 6-7 gusts of northerly winds in the coastal areas. Please take preventive measures.
From February 28th, 65438 to February 28th, 3 1, the strongest cold wave will sweep through China this winter, and the coldest weather will appear in most parts of central and eastern China, and the temperature in 25 provincial-level cities will hit a new low this winter. Sun Jun, chief forecaster of the Central Meteorological Observatory, analyzed that the cooling rate of this cold wave will be equivalent to that of the "overlord" cold wave in 20 16, and the local area in the north will turn purple.
Weather impact prediction
The strong cold air in the north will affect our city from the afternoon of February 29th, 65438, and there will be continuous low-temperature freezing weather in our city from February 30th to 10 2nd.
Temperature Impact: It is estimated that the minimum temperature will drop by about 10℃ on the 29th, and there will be two days of freezing weather below -4℃ on the morning of the 30th and 3 1, and the maximum temperature during the day will still be below zero.
Strong wind impact: On the afternoon of 29th-30th, the impact of cold air was accompanied by gusts of 4-5.
Specific weather forecast in Tangshan
National defense guide
The intensity of cold air is strong, the cooling range is large, and the temperature is low, mainly due to low temperature freezing and strong wind. The suggestions are as follows:
1, the water supply and gas supply department should pay attention to the anti-freezing and heat preservation work of the water supply and gas supply system to prevent the pipes and water meters from freezing and cracking;
2, the agricultural sector pay attention to take measures to do a good job in facility agriculture, tea trees, fruit trees and open-air crops, granaries and other windproof, antifreeze and warm work;
3, public security, housing construction, municipal administration, transportation, maritime affairs, health, emergency, power supply and other departments pay attention to prevent low temperature freezing and strong winds.
Agricultural advice
It is necessary to strengthen the ditch cleaning and drainage of winter wheat, rape, green manure, fruit trees and tea trees in low-lying areas to prevent frozen water from aggravating freezing damage; It is necessary to do a good job in harvesting and listing vegetables in the field. For the field vegetables with obvious effect in the cold wave, speed up the harvesting and listing, and cover the vegetables that cannot be listed in time to keep warm, so as to reduce the freezing damage.
In terms of agricultural facilities, for greenhouses with potential safety hazards, especially those with long service life and super-long width, it is necessary to improve and strengthen the scaffolding facilities, press the film pressing rope, add columns and pull rods, strengthen the load-bearing of the scaffolding, prevent the scaffolding from collapsing or the shed film from being blown open by strong winds to aggravate the freezing injury, and do a good job in antifreeze and warmth, ventilation and dehumidification, brightness and disease prevention during the period of cold air influence.
It is necessary to do a good job of cold protection and heat preservation in the barn of poultry and livestock farmers and increase the lighting time.
In aquaculture, it is necessary to deepen the water level of low-level ponds and ensure that the effective water depth is above 1.5 meters as much as possible; Check the oxygenation equipment, break the ice in time to prevent hypoxia; The temporary crab storage box is placed in deep water to prevent frostbite or death in shallow water; Suspend trawling and pay attention to the safety of patrolling the pond.