tornado siren
air raid siren
moaning Minnie
family Sirenidae
telecopter
air alert
Sirenidae
war tuba
on guard
ground proximity warning system
Bitching Betty
bombsight
all clear
multibounce
auto-alarm
autoalarm
bidirectional
pilot balloon
grass
klaxon
wail
airband
early warning radar
scatterometer
echo sounder
acoustic mirror
siren
sirenize
fogsignal
early warning system
foghorn
multiantenna
distress signal
atmoradiograph
dish aerial
fire alarm horn
saucer
radio interferometer
dish antenna
tornado warning
radiomarker
dish
nee nor
skip
super outbreak
Gibson Girl
woo woo
windshield
alarm
alarum
windscreen
warning signal
ionosonde
radarlike
wee woo
alert
Mayday
fenestron
weather balloon
stray
synchropter
Azon
Navarho
emergency locator transmitter
horn
gunbird
distress call
helicopter carrier
grinder
red box
radio sounding
resnatron
radio tower
balloon buster
slim jim
woop
eye in the sky
sausage
mayday
air scooter
sausage balloon
blimp
nee-naw
clutter
false alarm
RLQ
antirattler
heterodyne receiver
observation balloon
helo
heli-
listen
superheterodyne receiver
helichopper
SIGINT
superhet
monsoon bucket