tsunami in a teacup

teacup storm

storm in a teacup

head in the clouds

head in the sun

head over the clouds

snowed under

feeling under the weather

snowed over

get wind of something

wind of something

catch one's breath

save up for a rainy day

spend money in a rainy day

save up by an umbrella

rain then shine

it shines after the rain

come rain or shine

raining cats and dog

raining cat and dog

raining dogs