Natural calamities, this idea was actually made for MTA, but, let's be honest, MTA sucks and doesn't have enough elements to get this working.
Well, this idea is pretty simple, it doesn't even requires a big script.
The ideas is to have natural calamities using the new weathers from VC:MP, such as:
sea storm- Huge waves get created, making it impossible to ride boats and making low altitude areas as the beach swapped by waves, they have the same efect has drowning.
Atomic Bomb(not quite natural

)- The skies turn psicadelic becoming purple,pink and fluorescent green, really psico. everione loses 5 hp per min, a bit like in worms world party.
Tornado F5- everyone outside will be teleported to 500m above ground to fall to DEATH, if they are in a car, the car gets teleported(the player stays inside the car), weather changes to rain.
I'm out of calamities ideas.
This ideas need the weather forecast idea.
weather forecast ideaThis could occur maybe once every 12 hours ramdomly