Early June 2009 Thundery Showers in Dumbarton
Why I post this was because in that time frame, there was a small thunderstorm which hit the area and caused flooding to the house by blocking the drain with leaves from the trees, causing the pipes in the kitchen to first leak (hence my Dad often ran up and down the stairs to get towels from the spare room whilst trying to say everything was fine) and then, as the storm progressed, the main hall.