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 - Another hot and humid day, ending in thunderstorms - Thunderstorm warning with risk of 'torrential downpours' in England and Wales - 'Last Summer': A May-December affair with major thunderstorms - UK weather: Met Office issues warnings for more violent thunderstorms as summer flops - Met Office issues 11-hour thunderstorm warning as UK to be battered by wind and rain