Heavy rain and hail battered London, causing widespread disruption for residents across the region.

Footage shows hailstones falling onto the streets amid the intense downpour on May 12.

The storm comes amid a broader pattern of unseasonably cold and wet weather across the UK, with the Met Office forecasting sudden shifts, including heavy rain, hail, and even snow in some parts of the country.

Authorities issued a 10-hour thunderstorm warning, in effect until 10 pm on Monday.

Hailstones form when raindrops are carried by thunderstorm updrafts into freezing regions of the atmosphere. As they rise, they freeze and grow by colliding with other supercooled droplets—a phenomenon common during spring and summer storms.