Thunderstorms forecast for large part of UK / UK Weather: Met Office issues thunderstorm warning - full list of regions affected / Thunderstorms forecast during driest spring for decades / Will Scotland be affected by UK thunderstorm warning? / Toronto storm: 'Thundersnow' strikes city; heavy rain and thunderstorms expected later today / Thunderstorm risk for Rotorua, Waikato, Bay of Plenty today / Thunderstorm warning issued for parts of England and Wales / Thunderstorms and floods force evacuations / Thunderstorms and heavy rain sweep parts of UK / Three-year study suggests air pollution increases thunderstorm danger