Lightning at St Catherine's lighthouse

Thunderstorms, lightning, hail and slow-moving torrential downpours forecast by Met Office

There could be some good light shows over the next few nights as the Met Office have updated their weather warning for thunderstorms for the Isle of Wight and extended it over three days.

Valid from 10am until midnight today (Monday), the warning reads:

Already some showers to start the day, but these likely to become more widespread and heavier through the late morning and afternoon, lasting into the evening in places.

Some counties are likely to miss the worst of these storms but where they do occur, slow-moving torrential downpours could produce 20-30 mm inside an hour, with 40-50 mm falling in around 2-3 hours in a few spots. Hail and frequent lightning could pose additional hazards for some.

Tuesday’s warning
Tuesday has a warning in place for the entire day that reads,

Whilst some places will miss them, thunderstorms and areas of heavy rain will develop quite widely on Tuesday across much of England and Wales.

20-30 mm of rain is possible within an hour, but where areas of thundery rain become slow-moving, some places could see 50 mm in less than three hours.

There is a low probability that higher totals could occur in a few spots over the course of the day, while hail and frequent lightning are likely additional hazards for some places. There is considerable uncertainty at this stage in regional and county level focus.

Wednesday’s warning
Wednesday’s warning runs from 9am to midnight and reads,

Whilst some places will miss them, thunderstorms and areas of heavy rain will develop quite widely on Wednesday across the southern England.

20-30 mm of rain is possible within an hour, but where areas of thundery rain become slow-moving, some places could see 60 mm in less than three hours. A few spots could see more rainfall than this still, whilst hail and lightning may be additional hazards. .

Follow the updates by visiting the Met Office Website.

Image: © Twilight Wight Photography