The Bureau of Meteorology has issued a severe thunderstorm warning for the ACT on Friday afternoon.

Hail stones have already battered parts of Canberra, while the bureau has warned of damaging winds.

Hail in Canberra, taken by @GillianPolack

Gungahlin Library has closed as a result of the storm. The ACT State Emergency Service had received 113 calls for assistance related to flooding, hail damage and fallen trees by 7.20pm.

Weatherzone has predicted up to 10mm of rain, while a severe thunderstorm was forecast for 2.45pm to 3.45pm.