Portsmouth weather: Heavy rain and potential flooding predicted by Met Office warnings - hour by hour forecast

The Met Office has issued a yellow weather warning for heavy showers. The alert is in place from 6am today until 9am tomorrow morning. It is in place across the Portsmouth area, Hampshire, the Isle of Wight and most of England.

“Heavy rain will bring the potential for some flooding and disruption to transport,” the forecaster said. They added: “Whilst some areas will miss the worst, heavy showers and some thunderstorms will occur during today, potentially becoming more organised across a swathe of Wales and into central and eastern England during Thursday evening and on into early Friday morning.”

The Met Office added that “10-15 mm of rain could occur within an hour from the heavy showers during today with a few places possibly seeing 30 mm over a few hours”. “There still remains some uncertainty in the details for Thursday evening and overnight, but some locations may see up 20-30 mm of rain in 2-3 hours and perhaps 40-60 mm in three-six hours,” they added. “Given the recent very wet weather, this will bring the potential for further flooding and transport disruption.”

Flooding struck Leesland Road in Gosport on Monday, with concerns about severe downpours impacting the Portsmouth area this week. Here is the current hour by hour forecast, as issued by the Met Office.

Hour by hour forecast

9am - light showers - 16C - 70 per cent chance of rain

10am - heavy showers - 17C - 80 per cent chance of rain

11am - light showers - 17C - 70 per cent chance of rain

12pm - light showers - 17C - 80 per cent chance of rain

1pm - heavy showers - 17C - 80 per cent chance of rain

2pm - light showers - 17C - 70 per cent chance of rain

3pm - light showers - 17C - 70 per cent chance of rain

4pm - light showers - 17C - 60 per cent chance of rain

5pm - light showers - 16C - 50 per cent chance of rain

6pm - light showers - 16C - 60 per cent chance of rain

7pm - light showers - 15C - 50 per cent chance of rain

8pm - light showers - 14C - 60 per cent chance of rain

9pm - light showers - 14C - 70 per cent chance of rain

10pm - light showers - 13C - 70 per cent chance of rain

11pm - light showers - 14C - 80 per cent chance of rain