heavily
It's raining cats and dogs now.
It started to rain cats and dogs.
I'm going even if it rains buckets.
Tengo que ir aunque llueva a cántaros.
I have to go even if it's pouring rain.
It's pouring rain tonight.
Cuando llueve a cántaros, ¿tú sales?
When it's pouring rain, do you go out?
It started to rain cats and dogs.
It's raining cats and dogs.