Storms have erupted over the ranges near Sydney and eastern NSW and are becomign widespread. The Bureau of Meteorology have issued severe storm warnings for Sydney region, Illawarra, Central Tablelands, Hunter and regions north and northeast of these areas. The lastest models have an upper trough approaching the region and the air ahead of it is sufficiently unstable to produce severe storms including hailstones but in particular heavy rainfall that may lead to flooding and strong winds being the main threat. Anyone travelling should stay alert to the latest warnings. For live coverage complete with live radar overlay, refer to the Early Warning Network. Some areas may experience rainfall of up to 60mm of rain in eastern NSW.