Meanwhile, scientists predict the storms that brought devastating tornadoes to Texas over the weekend will grow in size as they hurtle toward Iceland, unleashing a surge of warm air that could push temperatures at the North Pole to 50 degrees above normal. There is only one other time on record when air temperatures at the North Pole have risen above freezing. Computer model simulations predict the storm could become one of the most powerful to hit the North Atlantic. It is also expected to drop more rain on Britain, which has already experienced devastating flooding.