"It turned day into night," a SES worker said.
"It came quickly and then it left."
The storm initially left about 11,000 homes and businesses without power in Brisbane, Ipswich and in the Somerset area, a spokeswoman for Energex told AAP.
At 2pm about 6000 homes and businesses remained without power, with Energex unsure of when electricity will be restored.
"We had more than 100 reports of powerlines down and have more than 100 crews out there responding as quickly as we can," she said.
North of Brisbane, 90-kilometre gusts were recorded on Moreton Bay at 11.24am, with gales reaching more than 80km/h at Brisbane Airport and 70km/h winds in the city itself.
The Bureau of Meteorology (BoM) has now cancelled the severe thunderstorm warning for Queensland's southeast, from Rainbow Beach to Stanthorpe.
"The immediate threat of severe thunderstorms has passed, but the situation will continue to be monitored and further warnings will be issued if necessary," the BoM said.
However, a new warning for damaging winds has been issued for the central west and parts of the Northern Goldfields and Upper Flinders, Northwest, Central Highlands and Coalfields and Maranoa and Warrego Forecast districts.
The BoM said severe thunderstorms were likely to produce damaging winds in the warning area over the next several hours.
Locations which may be affected include Roma, Charleville, Longreach, Winton, Isisford and Barcaldine.
-AAP