Large hail is likely in a severe storm heading towards Moreton Bay via Redcliffe, Woodford, Caboolture and Bribie Island.
Very dangerous storms are forecast to affect Strathpine, Redcliffe, Beerburrum and northern Bribie Island by 5pm and northern Moreton Island, Comboyuro Point, Cape Moreton and waters off Bribie Island by 5.3 pm.
The Bureau of Meteorology warns that, at 4.30 pm, very dangerous storms were detected on the weather radar near Caboolture, Lake Samsonvale, Dayboro and Wamuran. They are moving towards the east.
Other severe thunderstorms were detected near Jimna, Wacol, Upper Brookfield, Enoggera Reservoir and Greenbank.
They are forecast to affect Brisbane CBD, Beenleigh, Logan City and Borumba Dam by 5pm and Cleveland, Nambour, Mapleton and Yandina by 5.30pm.
Giant hailstones, destructive winds and heavy rainfall that may lead to flash flooding are likely.
Hail to 5cm was reported south of Toogoolawah at 3.20pm.
Queensland Fire and Emergency Services advises that people should:
* Move your car under cover or away from trees.
* Secure loose outdoor items.
* Never drive, walk or ride through flood waters. If it's flooded, forget it.
* Seek shelter, preferably indoors and never under trees.
* Avoid using the telephone during a thunderstorm.
* Beware of fallen trees and powerlines.
* For emergency assistance contact the SES on 132 500.
A more general severe thunderstorm warning is also current for the Wide Bay and Burnett, Southeast Coast and parts of the Central Highlands and Coalfields, Capricornia and Darling Downs and Granite Belt districts.
