1. 开门风，关门住，关门不住吹倒树就是说明这种情况。早风晴，晚风雨也是一样，单单是在白天刮风可能是稳定天气系统控制下好天气，晚上起风表明有新的天气系统影响，当新的天气移来时会造成阴雨天气。

1. The phrase "open door wind, close door wind, wind blows down the tree even when the door is closed" illustrates this situation. Similarly, if it is windy in the morning and rainy in the evening, it indicates the same pattern. Just wind during the day may be a sign of stable weather systems and good weather, but wind starting at night suggests the arrival of a new weather system. When this new weather system moves in, it can lead to cloudy and rainy weather.

2. 气象谚语：开门风，关门住，关门不住吹倒树是说白天刮风不像晚上刮风那样有明确的指示性意义。在稳定少变的情况下，晚上要么无风要么风力很小，如果晚上刮大风，一般都说明有新的天气系统即将移来影响本地，天气将要转坏。白天则不一样。白天刮风可能有两种情况：一种是处于稳定天气系统控制下没有新的天气系统移来影响，只是由于白天地面增热快发生对流而刮起来的风。这种风有时也比较大；另一种情况则是新的天气系统移来而造成的大风。

2. Weather Proverb: "Open the door and the wind blows in; close the door and the wind holds; but if you close the door, the wind can still blow over the trees" suggests that the wind during the day does not have the same clear indicative meaning as at night. Under stable and little change, the night is either windless or with a light breeze. If there is a strong wind at night, it usually indicates that a new weather system is approaching to affect the local area, and the weather is about to worsen. The situation is different during the day. When it's windy during the day, there may be two scenarios: one is that the wind is blowing due to convection caused by the quick heating of the ground under the control of a stable weather system, with no new weather system approaching to affect it. This kind of wind can also be quite strong at times; the other scenario is the wind caused by the arrival of a new weather system.

3. 两种情况形成的风在白天是不容易很好地区别开来（如果配上云的观测可能会好区别些）。但是有一点，如果是在稳定的天气系统控制下，仅仅是因为白天热力对流作用而造成的大风，不论其风力多大，太阳西沉后，也就是到晚上风都应该逐渐变小止息。如果白天刮大风到晚上没有停止趋势，就说明这种风不是热力对流作用而产生的，是新的天气系统移来，比如北方冷空气南下，台风北上，低槽东移等等而造成的。随着天气系统主力移来风力将会大增。

3. It is not easy to distinguish between the winds formed in these two situations during the day (it might be easier with the observation of clouds). However, there is one point to note: if the strong wind is caused solely by the thermal convection effect under the control of a stable weather system, regardless of its strength, the wind should gradually diminish and cease after the sun sets, i.e., in the evening. If the strong wind continues without a tendency to stop in the evening, it indicates that this wind is not generated by thermal convection but rather by the arrival of a new weather system, such as the southward movement of cold air from the north, the northward movement of a typhoon, the eastward movement of a low trough, and so on. With the arrival of the main force of the weather system, the wind strength will increase significantly.