Portsmouth weather: Hour-by-hour forecast as thunderstorm warning issued for Portsmouth by Met Office

The Met Office has issued the yellow weather alert for Portsmouth and across the South Coast between 6pm today and 9pm tomorrow. 

With the forecasters warning that the thunderstorm could bring torrential rain and even hail as well as lightening to places. 

Here is the hour-by-hour forecast

9am – Heavy rain showers – 14C 

10am – Heavy rain – 14C 

11am – Heavy rain – 14C 

12pm – Light rain – 14C

1pm – Light rain – 15C 

2pm – Cloudy – 16C 

3pm – Light rain – 16C 

4pm – Light rain – 17C 

5pm – Cloudy – 17C

6pm – Light rain showers – 17C 

7pm – Cloudy – 18C 

8pm – Cloudy – 17C 

9pm – Heavy showers – 17C 

10pm – Light showers- 17C 

11pm – Light showers – 17C 

What to expect 

Met Office is warning residents to expect: 

- a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds. 

- spray and sudden flooding could lead to difficult driving conditions and some road closures. 

- There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost.

The forecasters also predict that: ‘Thunderstorms may develop bringing torrential rain, hail and lightning to a few places, with potential disruption to travel and flooding.’