Traditional Culture Encyclopedia - Weather inquiry - Cold waves are often accompanied by strong winds and precipitation, right?

Cold waves are often accompanied by strong winds and precipitation, right?

It is true that cold waves are often accompanied by strong winds and precipitation.

This is due to the interaction between warm and humid airflow and large-scale strong cold air activities, which will lead to a sudden drop in temperature, frost, strong wind and sometimes rain and snow. Cold wave weather refers to the sharp drop in temperature caused by the transit of strong cold air, accompanied by disastrous phenomena such as strong wind, rain and snow. It is a large-scale activity process of strong cold air.

Cause of precipitation:

Meteorologists call the rain, snow, hail, ice particles and graupel that fall to the ground in the atmosphere precipitation. Rain or snow is actually just different in phase, which is related to the vertical profile distribution of atmospheric temperature. Generally speaking, the temperature gradually decreases from the ground to the upper air, and the higher the altitude, the lower the temperature. Therefore, precipitation in high altitude areas usually exists in solid form, that is, snow or ice crystals. Rain and snow are completely determined by low-altitude temperature.

When the atmospheric temperature at 850 hectopascals (about1500m) is lower than -4℃ and the near-surface temperature is generally lower than 0℃, the precipitation is snow or other solid precipitation (small ice particles, graupel, etc.). ).