If you don't want to waste money on the chopper stabilizer upgrade do this.
When you need to fly a chopper but it's too bad weather, press R1, down, R1 down, R1, down, R1 adn a heat wave will start, now you can fly your chopper.
To stop your park from ever getting hit by twisters, hold R1+L1, press left, right, R1+L1 and your paark will never have more than a thunderstorm.
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