What impact will the capital issue a blue gale warning?
At 10:10 on September 10, 2020, the Municipal Meteorological Observatory issued a blue warning signal for strong winds. Affected by the cold air, as of 20:00 on September 10, the city will have about 4 levels of northerly winds. , gusts can reach level 7. Please take precautions. The weather forecast issued by the Municipal Meteorological Observatory at 9:00 on the 10th today is sunny to cloudy with light rain, north wind level 2 to level 3, 4, gust level 6, the highest temperature is 25℃; it will be cloudy at night, north wind level 2, 3, the lowest temperature 18℃.
The strong wind blue warning signal is an early warning signal issued by the meteorological department through meteorological monitoring before the arrival of strong winds, reminding people to avoid strong winds and minimize the losses caused by strong winds to agriculture. The blue gale warning signal is a level one gale warning signal. The government, relevant departments and units must prepare for strong winds according to their responsibilities, and pay close attention to fire prevention in forests, grasslands and urban areas. Airports, railways, and transportation management departments must take measures to ensure traffic safety; stop outdoor operations and recreational activities at high altitudes and on water; reinforce easy Hoardings, scaffolding, billboards and other structures blown by strong winds should be properly relocated to outdoor buildings that are easily damaged by strong wind items; check plastic films in sheds for sticky holes and suspend farmland irrigation; pedestrians should avoid riding bicycles and pay attention to safety during construction When walking near the site, try to stay away from the construction site and pass quickly; pedestrians and vehicles are not allowed to park under high-rise buildings, billboards, temporary structures or large trees; streets, communities, villages and families should strengthen fire prevention awareness and take timely and effective measures to eliminate Fire hazard measures.
During this windy weather, affected by the cold air, the air formed a cold vortex, which was not large in scope but very strong. There is a strong updraft in the front of the cold vortex and a strong downdraft in the rear. The relative size of the cold vortex is small and it belongs to the secondary circulation. Beijing is just behind the cold wave. As the cold vortex continues to develop strongly, the windy weather lasts for a long time and the wind is strong, leaving you messy in the wind. During sand and dust weather, in addition to strong winds caused by cold air, a sand and dust source is also needed. During this windy weather, there was no obvious sandstorm in the site area, so the external transportation volume was relatively small.
When going out on windy days, you should try to avoid using light vehicles to avoid overturning due to insufficient gravity. You should try not to ride your bike in this weather. Not only is it tiring to ride into a headwind, but you’re also prone to being blown around when riding in a crosswind. Please remember to wear a mask and sunglasses when going out to prevent dust from damaging your eyes and respiratory system. In windy and dry weather, please pay attention to fire protection. Don't smoke or light fires outside.