[url=http://www.bbc.co.uk/weather/extreme_weather.shtml]Beeb[/url] said:
..So why are we seeing so much stormy weather?
The position of the jet stream is crucial. This conveyor belt of very strong high-level winds steers areas of low pressure across the Atlantic and this winter the jet stream has been aimed directly at the UK. Storms that developed off the east coast of the USA have gained strength over the relatively warm waters of the mid-Atlantic before hitting our shores. The strength of the jet stream also determines the severity of the storms and this season jet speeds have been unusually high...