A four-word idiom for bad weather.

It's dark, dark clouds are gathering, dark clouds are rolling, the sun and the moon are dim, the wind is blowing, the yellow sand is all over the sky, lightning and thunder are raging, the wind is raging, the rain is pouring down, the river is flowing backwards, the river is flooding, the Jinshan autumn rain is flooding, the rain is continuous, the wind is biting, the wind is howling and the snow is falling.