UPDATE: Weather experts have forecast a "supercell thunderstorm" for the Ipswich region, with the potential to cause flash flooding, damaging winds and hail.
Weather Channel meteorologist Tom Saunders said the region was in line for the potentially dangerous storms tonight and tomorrow.
"Supercells are the most dangerous type of storm and develop where wind shear is present through a very unstable atmosphere," Mr Saunders said.
Several factors could spare Ipswich of severe thunderstorms, including morning cloud and an early south-easterly change.
"If the change arrives too early in the day then storms are less likely," added Mr Saunders.
"There is a greater chance of storms on Sunday, with northerly winds likely for the majority of the day.
"The more intense thunderstorms this weekend have the potential to cause around 50mm of rain, but most of north-east New South Wales and south-east Queensland should receive at least 20mm."
After yesterday's scorcher, where the mercury climbed to 37 just after 3pm, there should be a slightly cooler maximum of 33 for Ipswich today and 28 for tomorrow.
Ipswich has recorded just over 26mm so far for November - a month in which the city averages about 80mm of rain.
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