A yellow warning for thunderstorms has been issued for several areas around the UK, amid fears for damage to homes and businesses.
The conditions are feared to bring power shortages in some areas. The yellow warning is in place between 11am and 10pm and affecting millions of homes in areas of south west England and Wales.
The warning from the Met Office reads: "Areas of heavy showers and thunderstorms are likely to form over parts of southwest England and Wales during Sunday.
"Whilst the majority of these will move through fairly quickly, giving short-lived downpours or thunderstorms, there is a chance of them lining up with a few spots potentially seeing repeated bouts of heavy rain and thunder.
"Where this happens some disruption could occur with up to around 25 mm of rain falling in an hour and perhaps 40mm in two or three hours. Frequent lightning, hail and a few strong wind gusts could accompany these storms."
It adds there is a "good chance" driving conditions will be affected by spray and standing water, causing long journeys for people in cars or relying on buses.
Last night a swarm of flying ants a mile long has been caught on a weather radar along the south coast.
The Met Office picked up the peculiar spot on Friday and has told people to expect more in the coming days.
As the swarms were spotted around the UK, people took to social media to report sightings, claiming it was "flying ant day".
The weather company explained it's not unusual for them to spot the winged insects making their way about and they usually are spotted at this time of the year over the space of a week.
They appear on the radar similar to how rainfall looks, but the Met Office is able to check their weather gauges and clarify whether or not it is rain or flying ants.
The creatures are less likely to fly in the rain and it is harder for the forecaster to tell if it is ants or the rainfall during wet weather, Simon Partridge explained.
The forecaster added: “Every year around this time we do pick them up on the rain radar. At the moment it’s harder to tell because we’ve got so many showers and the ants look like showers.
“When we do get the rain, they don’t fly as much. It’s generally the southern parts of the UK where we tend to notice it most.
“We haven’t seen any swarms today but it doesn’t mean they’re not there as there are so many showers around. They were picked up on the radar on Friday. It was much drier and it was easier to spot them. They can be seen several miles across – they look like very heavy showers. On Friday it was about a mile.
The yellow weather warning affected the following regions:
South West England
- Bath and North East Somerset
- Bristol
- Cornwall
- Devon
- Gloucestershire
- North Somerset
- Somerset
- South Gloucestershire
Wales
- Blaenau Gwent
- Bridgend
- Caerphilly
- Cardiff
- Merthyr Tydfil
- Monmouthshire
- Neath Port Talbot
- Newport
- Rhondda Cynon Taf
- Swansea
- Torfaen
- Vale of Glamorgan
Northern Ireland
- County Antrim
- County Armagh
- County Down
- County Fermanagh
- County Londonderry
- County Tyrone