Hey....I'm not like that ahole showing off...I don't know how to make it snow..but to fly a helicopter finish the mission zero to hero and go to your safe house's terrace and get a litle willie(needs money I think 5000$ but this cheat will give you 25000$,,,up,,down,,left right sqare sqare L R)and a biplane and the air port and a skimmer .....hope I helped
Don't ask me, you find out your self , and just to make you JEALOUS, I know how to fly a helicopter, plane and a jet. And I also no how to drive a ferry boat (huge as), a police boat, a speed boat and I know how to make it snow and you can go skiing . HAHAHA LOL. No seriously I know how, if you be my friend I will tell you. JKING I WIL NEVR want to BE your FRIENDCHANTELE BORG IS MY NAME