Queensland is set to experience potentially severe thunderstorms accompanied by heavy rainfall during the week as an unstable system arrives from WA and the Northern Territory.

The Scenic Rim and Gold Coast received heavy showers on Sunday night, with Springbrook recording 40 millimetres, Harrisville 62mm and Coolangatta 20mm, as reported by the Bureau of Meteorology.

Workers in Brisbane endured the chilly conditions at the start of the week, as the “feels like” temperatures dipped 2 degrees Celsius below the Monday mercury readings for the River City.

The airport recorded a difference of about 3 degrees Celsius.

Minimum temperatures in Brisbane for the week through to the weekend were forecast at 13-16 degrees with peaks of 22 degrees on Monday and 27-29 degrees from Friday through to Sunday.

According to meteorologist Helen Kirkup, most of the wet weather will hit south-eastern parts of Queensland on Thursday and Friday.

“The system over the WA-NT border will be moving across and bringing a fair bit of moisture and instability with it on Wednesday in Victoria, inland NSW and inland Queensland,” she said.

As the system continues to track through on Thursday, the focus is expected to shift towards Queensland’s southeastern parts—the Coalfields, Darling Downs, Maranoa and the south-eastern districts.

By Friday, the coastal areas and the Great Dividing Range will be the target before the system changes course, moving towards the sea and dumping odd showers that are expected to clear completely on Sunday.

The regions of Darling Downs and Maranoa are forecast to receive 20-40mm of rainfall on Wednesday and Thursday.

Areas on the Far East could record 20mm-30mm on Thursday and Friday, and given that heavy thunderstorms are expected within this time, some regions could receive higher rainfall totals.

Ms Kirkup added that several quarters in the Lockyer Valley experienced storms on Sunday night accompanied with thunder and some good falls, though these conditions were isolated.

The impending storms during the week are forecast to be windy, with possible heavy rainfall and damaging winds.

The Macintyre River catchment along the Queensland—NSW border near Goondiwindi is set to experience flooding if heavy rainfall is received this week as forecast, since the ground is still damp from wet weather conditions.