We may be smack-bang in the middle of another mini-heatwave, but the clement weather is due to change dramatically.
The 30C heat is predicted to break with "waves of thunderstorms" forecast for later today.
See also: Weatherman blown away on live TV
Get Surrey reports that some areas could get 30mm of rain in as little as an hour posing a "threat of sudden flooding of roads, transport routes, homes and businesses".
While it's best to stay at home where possible during a storm, according to the Met Office, there are some key activities around the house which can put us in danger.
So no baths, no washing your hands after going to the toilet and no washing the dishes (hurrah!).
Here's what you should and shouldn't do at home before, during and after a storm.
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Before a thunderstorm.
- Make sure you unplug all non-essential electric appliances, including the television and any computers, as not only does this protect you from getting shocked, but it also prevents power surges.
- You can still watch programmes on your laptop/tablet so long as it's not plugged in.
During a thunderstorm.
- Avoid using the phone as telephone lines can conduct electricity.
- However if the telephone doesn't have any wires / it's a portable phone, then you should be OK - just don't hold on to a corded phone or any electric appliance plugged into an outlet.
- Avoid using taps, sinks, baths, showers and DON'T put a load of laundry in the washing machine.
Metal pipes for water and sewage are excellent conductors of electricity. Also bear in mind the water they transport can contain impurities that also help conduct electricity. The house work can wait.
- Don't stand near windows and doors. Storms are fascinating to watch but be warned - lightning has been known to strike through glass and travel through unsealed cracks.
Lightning can travel through glass
And after a thunderstorm.
- Avoid downed power lines or broken cables.
- If someone is struck by lightning they often suffer severe burns. The strike also affects the heart, so check if they have a pulse.