When the tropics and extra-tropics collide

Thirty years ago, a large mass of cloud moved north-east towards the shores of NW France and SE England: the infamous, poorly-forecast, October Storm. Thirty years on, Hurricane Ophelia sits close to the Azores ready to move north-east possibly towards the NW Europe. Two very different storms, but both are connected by the low risk but considerable potential that exists in the overlapping of the tropical and extra-tropical cyclone seasons that occurs in September and October. I wanted to use this post to talk about this "crossover" period to have a discussion around how the hurricane season could impact the European Windstorm season and have a think around how this might produce tail events.