The UK could see its wettest summer on record, with the Met Office warning that six weeks' worth of rain could fall in just three months.
Forecasters have reportedly told the Government and the Transport Secretary that wet weather is likely to continue into June, through to August.
According to The Sun, at this time last year there were 40 days with at least 2.5mm of rain, and this summer could see at least 50 days of rain.
If it rains on more than 55 days, it could become the wettest summer since 1912.
Major events such as the French flag-raising, Royal Ascot, Wimbledon, the British Grand Prix and Glastonbury could all be disrupted by weather.
The Met Office's long-range forecast states that “the probability of periods of being wetter than normal is higher than the probability of periods of being drier than normal”.
“Rainfall during this time will bring an increased risk of localized heavy rain and thunderstorms.”
Forecasters expect more than eight hours of rain to fall in London throughout Tuesday, with heavy rain expected into Thursday and Friday.
The Met Office warned that rain would be less frequent on Friday and Saturday, but that “prolonged thunderstorms” were possible across London and the southeast of England throughout Thursday.
London has seen its wettest year so far this year, with southern England experiencing its wettest February since 1836, according to Met Office data.
The naming of Storm Katherine in April marked the second time a storm has reached the letter K since the annual storm alphabet was established in 2015.
