Cold and warm fronts transit formula.

After the cold front crossed the border, the temperature and humidity plummeted, the air pressure increased, and the weather turned fine. After the warm front crossed the border, the temperature rose, the air pressure dropped and the weather turned fine.

cold front

When the cold air mass moves to the warm air mass actively, the front edge of the heavier cold air mass is inserted under the warm air mass, so that the warm air mass is forced to rise. The warm air mass cools in the process of lifting, and the water vapor in it can easily condense into clouds and rain. If the warm air contains a lot of water vapor, it may bring rain and snow. The cold front moves faster and often brings strong winds.

Therefore, when the cold front crosses the border, it is prone to rainy and windy weather. After the cold front crossed the border, the cold air mass replaced the original warm air mass, so the temperature and humidity plummeted, the air pressure rose, and the weather turned fine. Cold front exists all year round in China, especially in winter. Cold front can be divided into two types: slow cold front weather and fast cold front weather.

warm front

The warm air mass climbs slowly along the cold air mass, and the water vapor cools and condenses to produce clouds and rain. Because the warm front moves slower than the cold front, it may form continuous precipitation or fog. Warm front precipitation mostly occurs before the front, mostly continuous precipitation. After the warm front crossed the border, the warm air mass occupied the position of the original cold air mass, so the temperature rose, the air pressure dropped and the weather turned fine. Warm front is active in the northeast of China and the middle and lower reaches of the Yangtze River.

Weather during transit in cold and warm fronts

1, the cold front transit temperature suddenly drops, and the warm front transit temperature will increase.

2. The warm front keeps raining, and the rain area is wide and lasts for a long time; The cold front will form heavy precipitation, heavy rain or heavy snow, and the rain area will be narrow.

The cold front will be accompanied by windy weather.