Cloudbursts happen when saturated clouds are unable to produce rains because of the upward movement of very warm currents of air. Which of the following statements with regard to cloudbursts is/are correct?

1. It is defined as sudden, localized, very heavy downpour with cloud thunder and lightning.

2. It mostly occurs in the hilly areas.

3. It results into very high intensity of rainfall, i.e., 250mm-300mm in a couple of hours.

4. It occurs only during daytime.

Select the correct answer using the codes given below: