Weather by Nilsson Jones Premium Content  Southeast Queenslanders are being told to brace for a cold snap over the weekend after it was smashed by severe thunderstorms last night, with giant hail, 100,000 lightning strikes, flash flooding, and damaging winds leaving their mark. Brisbane's peak-hour traffic was thrown into chaos with suspended trains across the network, traffic light outages, flash flooding and hour-long delays to commuters through key inner-city routes. And trains between Roma Street and Beenleigh stations remained suspended as of mi...