I have no pictures to show you but take my word for it - this really happened.
I waited until it got light out then boiled my water and hit the balcony. I never thought to get a picture. But it really worked!! A cloud of snow floated upwards and out from the cup of water I threw off the balcony. I tried it a second time. What a blast. I tried it later in the day when it was only -24 and with cold water but it didn't work. I guess the secret is boiling hot water - and -30!!!
I will see what the temperature is tomorrow morning and try it again - this time with pictures.
CAUTION!! Boiling water is very hot - do not attempt unless accompanied by a responsible adult - or you are one :o)