Niagara
antelope
arrow
belch
blue darter
blue streak
burst
cannonball
cascade
cataclysm
cataract
courser
dart
debouchment
deluge
dissiliency
eagle
effusion
electricity
eructation
eruption
express train
flare-up
flash
flood
flooding
flow
fresh
freshet
gazelle
greased lightning
greyhound
gush
gushing
hare
inundation
jet
jet plane
light
lightning
mercury
outbreak
outburst
outpouring
overflow
pour
quicksilver
rapids
river
batch
current
deal
flock
good deal
great deal
hatful
heap
lot
mass
mess
mickle
mint
mountain
muckle
passel
peck
pile
plenty
pot
quite a little
raft
rain
rainfall
sight
slew
spate
stack
stream
tidy sum
wad
blast
cloud
fountain
fury
gust
hurricane
roar
rush
shower
storm
tempest
thunder
tumult
waterfall
whirlwind
abhorrent
warrant