A bit more about Storm Jude for those interested in all things metrological.
A warm Atlantic, some 3-5C warmer than the 30 year average provided plenty of extra water vapour, heat energy and lift to create a large storm.
Extreme pressure difference between high pressure in the Azores and very low pressure over Iceland.
A very strong jetstream moving at 240mph. The jetstream is a product of the temperature and pressure contrast between cool Polar air to the north and warm Tropical air to the south. The temperature difference between polar air and tropical air is particularly marked at this time of year: with the tropics still very warm, while the Polar ice sheets seeing a marked fall-off in temperatures with their attendant air masses. This builds steep pressure gradients and a strong jet. The jet is also a key factor in creating and guiding LOW and HIGH pressure systems on the surface. At times during the passage of the storm wind speeds above the Channel exceeded 180mph.
Track and Impact
The track of this storm was key. Along the northern and western coasts of Scotland and northern Ireland winds of 70-90mph are not that exceptional because they are on the more usual track of Atlantic storms.
However, powerful Atlantic storms are seen much more rarely across southern parts of England and Wales – which means these areas are much more susceptible to strong winds.
All this combined meant that the storm had a significant impact – with fallen trees causing the majority of disruption.