Thunderstorms could be about to thrash Greater Manchester after the Met Office issued a weather warning.The yellow alert covers the whole of the UK from Monday until Wednesday.Following warm temperatures in recent days, the Met Office warns that 'severe thunderstorms' could hit the region.However, forecasters add that there is 'significant uncertainty in location and timing' of the thunderstorms.According to the warning:A further warning for thunderstorms is also in place across England and