Severe thunderstorms are set to flare up again over New South Wales and Australia Capital Territory today, after they hit parts of the state last night. Yesterday, thunderstorms were particularly active over central and southern parts of the state, as well as the ACT. Canberra bore the brunt of one of these storms, with the nation's capital recording 21mm in the space of only ten minutes with wind gusts reaching 93km/h. The storm was also associated with hail, which aided in a temperature drop of nine degrees in just seven minutes as well as frequent lightning. The wild conditions led to power outages across the city. Many places in eastern New South Wales are again likely to experience thunderstorms today, bringing the risk of heavy rainfall, damaging wind gusts and large hail. Large hail is particularly likely in the state's south due to a cool and unstable upper atmosphere. Sydney should also pick up further thunderstorms today after they rudely awoke some residents this morning. Severe thunderstorms are also a risk, most likely in western suburbs. The thunderstorm threat will persist into the weekend with a focus over the state's northeast, with the probability of storms decreasing from Sunday as the trough begins to move offshore. A high pressure ridge will make thunderstorms unlikely from the start of the working week.