NEWS.com.au | Crazy weather and tunnel closure causes Sydney traffic chaos NEWS.com.au TRAFFIC is at a standstill, buses and trains are delayed and flights are being cancelled as wild weather lashes the city, causing flash flooding. Stephanie Bedo. news.com.auSeptember 7, 20187:09pm. Video; Image ... Sydney Harbour Tunnel closed southbound after motorcycle crash Harbour tunnel reopens after critical police pursuit Traffic Chaos: Sydney Harbour Tunnel Closed Southbound After Motorcycle Crash |