Britons warned to expect hazardous weather with flash flooding and hail stones forecast for Scotland Britons are being warned to expect hazardous weather after forecasters predicted flash flooding and large hail stones in some parts of Scotland. The Met Office have released an amber weather warning across parts of south east Scotland and are asking residents in those areas to "be prepared" for severe weather. Temperatures are forecast to take a dramatic nose dive up until 8pm tonight, with violent thunderstorms beginning later this afternoon. Drivers are also being warned to prepare for hazardous driving conditions because of heavy hail storms. The Met Office are expecting up to 30mm of rain to fall within an hour later in the day and are advising the public to be prepared for localised flash flooding. Fortunately, the weather looks set to improve during the rest of this week and drier conditions have been predicted, although weather will still be cooler than average until early June.