What clouds are there in the sky before the heavy rain in the mountains?

It depends on what kind of rain it is, if it's just rain.

Cumulonimbus clouds: It is a low-level thundercloud, and the cloud is dark. Tower-shaped clouds can reach heights of up to 6,000 metres, and the flat cloud layer at the top is called the anvil top.

Cumulonimbus clouds often bring strong storms, thunder and lightning. The upper layer resembles a false cirrus cloud, and the top layer resembles a false rain cloud.

Cumulus clouds: Very easy to identify, fluffy white clouds, like clumps of cotton wool, floating in the air. If you are separated from each other, it means that it is a beautiful sunny day, but if it grows bigger and bigger, and there are more and more fronts, it is likely to bring a sudden rainstorm.

Cumulus clouds located in the blue sky over the sea usually indicate that they are not far from land, and the height is generally not more than 2,500 metres.

Cirrostratus clouds: Formed by ice particles that look like white clouds, these are the only clouds that create a halo around the Sun or Moon. If Cirrostratus expands, it means that the weather is clear; If the cirrostratus clouds shrink, it means that it is going to rain; If the sky is shrouded in cirrus clouds, the sky above the cirrus clouds darkens and cirrocumulus clouds gradually form, which signals the arrival of rain and snow.

Nimbostratus: Low-level dark clouds, shrouded in the air, meaning that there will be rain within 4 hours, usually for several hours.

Stratocumulus: Low-lying shingled clouds, usually covering the entire sky. The clouds are thin and sunlight can pass through.

They may bring thundershowers, but they generally disappear in the early afternoon, leaving behind a clear and bright blue sky. The height is less than 2,500 meters.

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The kind where the clouds overlap, there is no sun.

There were broom clouds in the sky, and it rained for three days. In the morning, the cotton will slow down the clouds, and in the afternoon it will rain. In the morning, the clouds were long, and there was no rain.

In the morning, the clouds blocked the dam, and it rained for three days. The clouds go in the morning, and the dog dies in the afternoon. Tonight is full of flowers, and tomorrow is dead.

There were broom clouds in the sky, and it rained for three days. In the morning, the cotton wool is cloudy, and in the afternoon it will rain. In the morning, Dongyun long cover pure mold, there is rain but not night.

In the morning, the clouds blocked the dam, and it rained for three days. The clouds go in the morning, and the dog dies in the afternoon. Tonight is full of flowers, and tomorrow is dead.

There are pods in the sky, and soon the rain will come.

There were anvil clouds in the sky, and soon it rained heavily.

Lao Yun is over, and if it is not yin, it will go down.

Clouds eat fog and rain, fog eats clouds and good days.

The clouds eat the fire and there is rain, and the fire eats the clouds and the sunny day.

Dark clouds catch the sun, and the rain in the middle of the night is not worried.

The soles of the dark clouds are white, and there will be heavy rain.

The low clouds are gone, and the rain is not long in coming.

Evil clouds are long in the northwest, and hail is in the future. Don't be afraid of rainy weather for a long time, as long as the northwest is open.

The clouds go east, and the rain pants turn into the wind, and the clouds go south, and the water ripples, and the clouds go west, and they go down to the ground and wear their clothes.

It rains and shines, for days and nights.

Dark clouds block the east, and there is no rain and wind. The clouds are wrenching at the zenith, and the wind and rain are not small.

There are broken purple clouds in the morning, and thunderstorms are coming in the afternoon.

The black clouds of the storm are rising, and the hail is about to land.

Black clouds smoked, hail on the day.

Black and yellow clouds rolled over, hail in front of you.

The black and yellow clouds are rolling over, and they are about to lay ice eggs.

The sky is full of water waves, and there is rain that can't run away.