Thunderbolts, lightning and a heatwave have hit Dacorum in a matter of days as the Met Office predicts more unsettled weather for the week ahead.
Soaring temperatures reached their peak on Friday, which was recorded as the hottest day of the year so far in the region.
But while storms were forecast for Saturday, the deafening claps of thunder woke up many across the borough a night early.
Impressive flashes of lightning were caught on camera – in some cases using smartphones – by skilled snappers forced out of bed by the natural phenomenon in the early hours of Friday morning.
At nearby Heathrow airport, airlines were forced to cancel 20% of flights for a two-hour period due to the electrical storms, and, according to the Met Office, the UK saw a total of 62,277 lightning strikes across the weekend.
But with temperatures set to remain in the high 20s for the rest of the week, the East of England Ambulance Service NHS Trust has issued advice on how to stay safe during the ongoing heatwave.
The service has seen a spike in 999 calls over the warmer weather, and warns that in extreme cases, the excess heat can be fatal. Click here for the Trust’s advice on staying safe during the hot weather.
Once again, the humidity could trigger further storms towards the end of the week.
Keep up to date with the latest weather predictions by visiting the Met Office website, or by following @metoffice on Twitter.
Watch a submitted video of last week’s storms above.