A dangerous heat wave will hit the southwestern United States. What is a dangerous heat wave?

Just before, there was a news that the southwest of the United States would be hit by high temperature. This time, 80 million Americans were affected, and this dangerous heat wave hit the southwestern United States again, affecting 34 million people. The so-called dangerous heat wave, not only refers to the pure hot air, but refers to the tropical humidity in the air is much higher than the normal humidity, making this kind of weather sultry and depressing.

At present, four days ago, parts of the western United States began to be in a dangerously high temperature state, and 34 million people have been caught in the alarm. These people must pay attention to timely hydration during their daily trips, and at the same time pay attention to sun protection and heatstroke prevention. In the next few days, some cities in the western United States may face record-breaking high temperatures, such as Phoenix, Figure 3 and Salt Lake City, which will all be hit by this heat wave. The reason why this hot weather hit the western United States is because

This is completely equivalent to very hot water vapor. This specific description makes you understand what dangerous heat is, that is to say, the humidity contained in this air is much higher than the normal humidity. The problem is that the humidity here is high, just like your water vapor is very hot, so it causes serious burns to you, and it seems that we are not afraid of very hot heat in summer, that is, dry heat and sweating. The terrible thing is that the sweltering heat makes the atmosphere full of water.

Therefore, it is expected that Los Angeles will be directly baked at a high temperature above 35℃ this weekend. The problem is that this kind of high temperature contains a lot of water molecules. In some extreme areas, the temperature may directly soar to 45℃, such as Las Vegas and Phoenix, which have now reached record high temperatures. In the coming week, the temperature may reach 46. 1 degree Celsius, which has always been called the hottest area on earth, that is, Death Valley. Yesterday, the temperature was. You can imagine how high the temperature is. The problem is that there is still water vapor in these high temperatures, which really makes people feel bored. In this weather, a little carelessness may lead to dehydration shock due to excessive water loss, or heatstroke due to too hot weather.