I know of a few ways to make it snow.
If you are a snowmobiler,sell your sled and order a special edition,limited numbers being built,new sled. This will make it snow,but it will melt before your new sled shows up.
It's much easier if you are a skier,just break both legs,or a collar bone,even a broken wrist might do it,but not if you have a high tolerence for pain,then you may need a full body cast.
The one I used last year to bring that blizzard in feb, worked really well.I simply blew up the motor in my only 4x4, my camaro was my only other transportation at that time,so I knew it would snow,and snow it did.
I hope this helps,if you need help breaking something,or blowing up your 4x4,let me know.