A fault with the BBC Weather website and app is leading to incorrect forecasts of hurricane force winds in the UK and across the globe.

Graphics showed estimated wind speeds of 13,508mph in London and 5,293mph in Rome – far in excess of any genuine hurricane such as Milton which struck Florida overnight.

And temperatures of 404C in Nottingham, 384C in New York and 378C in Sydney were among those being wrongly displayed.

BBC Weather said it was aware of a data issue with a third-party supplier and it was working hard to fix the problem.

BBC News understands the fault is mostly affecting wind speed forecasts.

Presenter Matt Taylor said in a post on X: “Don’t be alarmed folks – Hurricane Milton hasn’t made it to us here in the UK! There’s been a data glitch between our suppliers and the app/online. Folk are working to solve the issue.”

In another post, lead presenter Simon King said: “Oops, don’t be alarmed by some of our BBC Weather app data this morning.

“Be assured there won’t be 14408mph winds, hurricane force winds or overnight temperatures of 404C.”

Forecasters have also acknowledged the issue on TV bulletins, which have not been affected by the fault.

In a statement, BBC Weather said: “We have an issue with some of the weather data from our forecast provider which is generating incorrect numbers and text on our BBC Weather app and website.

“It’s mainly been impacting wind readings but some temperatures are also displaying wrongly.

“We recognise there is huge interest in weather today and this is incredibly frustrating.

“We are really, really sorry about this and working very hard to fix the problem.”

A BBC spokesperson also apologised and said it was working with its supplier to fix the issue as soon as possible.

Meteorological forecasting company DTN, which supplies BBC Weather with data, said it was aware of the issue but did not know when it would be fixed.

A spokesperson for the US-based firm said: “There has been a problem, but at this moment we have no exact time when it will be working again.”

In Edinburgh, the glitch suggested winds speed would be 17,246mph. In Belfast, it was suggested gusts would reach 14,398mph, and in Cardiff winds were said to be 12,585mph.

Meanwhile, Truro in Cornwall was displaying wind speeds of 16,309mph and they were said to be 15,227mph in Liverpool.

Forecasts also currently say Paris will see hurricane force winds of 13,322mph and Bangkok 13,491mph.

In reality, on Thursday there will be colder air moving in, with rain and drizzle in the south of the UK and blustery showers near the east coast.

Wind gusts will reach a maximum of 33mph in Aberdeen, according to the Met Office.

Next week Florida’s Hurricane Milton could bring uncertainty to UK weather if its remnants end up in the Atlantic, but the Met Office said it was “highly unlikely” to reach the UK.

Hurricanes are powerful storms which develop over tropical waters.

They involve sustained winds near the surface of at least 74 mph. In a category 5 hurricane, the most severe on the Saffir-Simpson hurricane scale, winds can reach over 157mph.

Hurricane Milton, which made landfall as a category 3, storm has battered Florida, bringing tornadoes, floods, and the risk of storm surges.

More than three million homes and businesses are without power, and there have been “a number of deaths” reported on the Atlantic coast.