Severe thunderstorm warning issued for Canberra, Goulburn and coast

An emergency thunderstorm warning has been issued for Canberra and parts of New South Wales, raising the prospect of heavy rainfall and flash flooding.

The warning for the ACT and across the border in the Goulburn and Bateman's Bay areas was released at 2:00pm (AEDT).

The Bureau of Meteorology said severe thunderstorms were likely to produce heavy rainfall, that could lead to flash flooding over several hours.

Heavy rain began in Canberra's north shortly after the warning was issued.

Other areas that were likely to be affected included Scone, Bowral, Orange, Mudgee, Bathurst, Katoomba, Yass, Tamworth and Parkes.

The State Emergency Service advised people living in the warning area to keep clear of creeks and storm drains and avoid any resulting floodwaters.

It also recommended residents unplug computers and appliances, avoid using the phone and keep children and pets indoors during the storm.

Residents in need of assistance can contact the SES in NSW and the ACT on 132 500.

A warm day with a top of 32C and thunderstorms in the afternoon and evening had been forecast for Canberra on Sunday.

The weather in Canberra has been hot and dry for the past few days, but storms and rain are now predicted for the Territory until this time next week.