What is the range of a kind of weather? For example, it is raining in a city. How far is it from rain?

The weather range is determined by the scale of the weather system. The largest weather system can reach more than 2000 km, and the smallest is less than 1 km.

Wavelength fluctuations comparable to those in radius of the earth are called planetary scale weather systems.

Systems with horizontal scales ranging from 2,000 km to 2 km are collectively referred to as mesoscale weather systems, including typhoons, fronts, tornadoes, squall lines and thunderstorm cell.

The high and low pressure system with an average distance of about 200 ~ 300 kilometers is called weather system, and now it is called weather scale weather system.

100 ~ 200 km is called mesoscale weather system.

High and low pressure systems with a range of one or two hundred kilometers, dozens of kilometers or even several kilometers are collectively called mesoscale weather systems.

For example, the question of how far it rains in a city depends on what weather system is causing it. If it is caused by typhoons, fronts, tornadoes, squall lines and thunderstorm cell, the rainfall range will be relatively large. If it is convective rain in summer, the scope will be relatively small, and there may be no rain not far away (or there may be no rain across the road? )。