Warnings of a strong El Nino weather pattern this year suggest that the coming months could be characterized by drought, flooding and extreme heat. What impacts are in store? And can we prepare for the worst of it?

A potentially strong El Nino could be officially declared this week and experts warn it could bring major weather shifts across the US.

Warnings of a powerful El Nino weather pattern this year suggest that we may be about to face drought, flooding and extreme heat. What impacts are in store? And can we prepare for…