What kind of weather does the cold wind pass through?

When a cold front passes through, there will usually be heavy rain and snow, and the temperature will drop.

The temperature is high before the cold front passes, controlled by the warm air mass, and the air pressure is low. After the cold front passes through, the temperature is low, the air pressure is high, controlled by the cold air mass, and the weather is sunny. A front formed when cold air masses actively move toward warm air masses is called a cold front. Cold fronts are the most common type of front in my country and can move throughout the country. The air pressure drops sharply in front of the front and rises behind the front; the temperature drops; the gradient increases; the atmospheric pressure increases obliquely; the wind direction changes clockwise; precipitation and even thunderstorms occur.

This situation generally only occurs in mid-latitude areas. In low-latitude areas, it is generally possible from late spring to early summer, because the cold front at that time usually develops in the latitude of 25 to 30 degrees. , and low latitude areas generally have higher temperatures, and lightning is prone to occur when the temperature is high and friction occurs.

Characteristics after a cold front passes:

1. After a cold front passes, towering cumulus clouds and cumulonimbus clouds begin to dissipate into cumulus clouds, and the corresponding precipitation will also decrease.

2. The weather will start to clear up and visibility will eventually become very good.

3. The temperature remains cooler, but the atmospheric pressure continues to rise. A front formed when cold air masses actively move toward warm air masses is called a cold front. Cold fronts are the most common type of front in my country and can move across the country. Because cold air is heavier and warm air is lighter, when the cold air mass moves, the cold air mass actively wedges under the warm air mass to form a front where the cold and warm air interface.

When a cold front passes through, cumulonimbus clouds often appear, causing thunderstorms and heavy precipitation. If the cold front moves quickly, cumulonimbus clouds will be distributed in a narrow area in front of the front, and the clouds will quickly turn from less cloudy to sunny behind the front; if the cold front moves slowly, a larger range of altostratus clouds and nimbostratus clouds will form.

Reference for the above content: Baidu Encyclopedia-Leng Feng