The Met Office has issued a severe weather warning for South Yorkshire for tomorrow, with flooding and severe travel disruption possible.
It comes as the remnants of Tropical Storm Henri barrel towards the UK.
The storm is set to bring a deluge of rain and strong winds.
The atrocious weather will move northeastwards across the country early on Wednesday, and will last into Thursday.
The Met Office's chief forecaster said: "A complex area of low pressure is expected to deepen over the Bay of Biscay later today and into Wednesday, before pushing north towards the UK.
"Rain will arrive into southern areas Wednesday morning, before spreading to the rest of the warning area through Wednesday afternoon and into Thursday.
"Rain should ease from the south during the day, though some heavy and thundery showers may develop across the southeast and East Anglia through the afternoon and evening.
"Most parts of the warning area should see 15-30 mm of rain, however some places could see as much as 40-70 mm.
"Furthermore, thunderstorms developing across the southeast and East Anglia Wednesday afternoon have the potential to generate 15-25 mm of rain in a few hours.
"This is a very complex development, and uncertainty in timings and areas most at risk is large. As such this warning will be updated as confidence in developments increases."