What proverbs are there about the weather in the first grade of primary school?

1, "Don't go out at sunrise, but go to Wan Li Road at sunset."

Weather systems usually move from west to east, and red clouds are formed when the sun shines in at sunrise or sunset. At these two times on the same day, the sun shines into the clouds from a very narrow angle through the thick atmosphere. In this way, the visible light with the shortest wavelength is absorbed by the clouds, that is, green, blue and purple light, so red (complementary color relationship) clouds are formed in the sky.

2. "There are castle clouds in the sky and thunderstorms on the ground."

Castle cloud indicates that it will rain tomorrow, which is a clear weather forecast method. The weather brought by this cirrus cloud is clear and cloudless, so everyone can go out safely. In summer, the cauliflower shape of cumulus shows that water rises rapidly and cools, while dry air continues to stay at high altitude.

3. "The thunder is in pieces and the river is full of rain."

This proverb applies to summer, but not necessarily to winter. Air with heavy moisture has greater sound transmission efficiency than dry air, so it can transmit sound to far places.

4. "Spring east wind, rain ancestors." "The spring breeze is easterly and the rain is gurgling."

These two proverbs mean that the east wind blows in spring, which is a precursor to bad weather. This is because, on the one hand, the ground will get warmer in spring. On the other hand, the warm air is gradually active, the continental pressure is gradually decreasing, and the anticyclone moves eastward into the sea.

An easterly wind will appear at the tail of the anticyclone. These easterly winds flow to warmer land, leading to the phenomenon that the upper part is warm and the lower part is cold. At this time, the air layer is unstable and prone to upward convection, so it is very likely to produce precipitation.

5, the sky is full of fish scales, no rain and wind.

"The sky is full of fish scales, no rain and wind." The sky obviously covered by cirrus clouds (fish scales) stretches for a long time. This high-altitude cirrus cloud indicates that low-pressure clouds move from west to east.

This usually increases the wind speed, forms storms in the east, thickens the clouds and produces precipitation in the next 24 hours.