Met Office weather warning over ‘once in 250-year’ event taking place over UK

Get the free Morning Headlines e-mail for information from our reporters internationally

Sign as much as our free Morning Headlines e-mail

A once-in-a-250-year weather event is about to achieve the UK bringing bitter winter circumstances, the Met Office has warned.

A Sudden Stratospheric Warming (SSW) event normally strikes each two prolonged winters, nevertheless typically there are runs of years with out one, stated meteorologists.

But this yr three SSW occasions may happen in one yr resulting in an especially uncommon incidence.

Professor Adam Scaife, head of long-range forecasting on the Met Office, stated: “Although we have not seen it before, we recently documented the chances of an unprecedented three SSW events happening in one winter.

“Our research work, using multiple computer simulations, showed that this could occur about once in every 250 winters.”

The SSW course of usually takes place “between 10km and 50km above the Earth’s surface”, which means we don’t discover the warming impact on the bottom.

When SSW arises, the conventional westerly airflow above the environment makes the jet stream meander extra, which might result in a big space of excessive stress over the northern Atlantic, the Met Office defined.

The formation of this high-pressure space can create an impediment to the Atlantic low-pressure programs chargeable for delicate, moist and windy weather.

The block then will increase the prospect of chilly, dry weather in the UK and will increase the prospect of delicate, moist and windy circumstances in southern Europe.

Although the event doesn’t all the time lead temperatures to plummet, 70 per cent of SSW occurrences are linked to a chilly snap.

Professor Scaife added: “Although this is very rare, we also found that the chance of multiple SSW events is increased… and so the chance of multiple events this winter is raised.”

The chaos-inducing ‘Beast From the East’ snowstorm was brought on by this course of, which led to 17 deaths and nationwide havoc.

The Met Office weather forecast predicts a cold weekend with chilly winds and a few outbreaks of rain.