The meteorologist says there's a cold front moving in. How will you prepare? Leave your umbrella at home because at worst there will be a light rain. Get out the sunblock because it'll be clear skies. Get inside the house and close the windows because a storm is coming!

It's not true that there might be a light rain, actually, there might be a heavy rain (but not necessarily). In any case, if a cold front is coming, a sun block is not very useful, an umbrella might be better!

So the correct answer is: Get inside the house and close the windows because a storm is coming! (again, not necessarily, but there is a high chance)