Forecast updated at 5:15 pm EST on Thursday 3 September 2015.
A weak high pressure system lies over the Coral Sea, extending a weak ridge northwestwards onto the eastern coast of Cape York Peninsula. A cold front extends from the northwest of the state down to Hervey Bay, and should continue to more eastwards and off the east coast during this evening. Cooler and drier air will spread across most of the state in the wake of the front as a ridge becomes established through Queensland from a high pressure system moving through southern Australia.
Forecast for the rest of Thursday
The slight chance of a shower or thunderstorm over the southern Darling Downs and southern Southeast Coast districts this evening. The chance of a shower or storm over Fraser Island this afternoon. Fine and mostly clear elsewhere across the state. Moderate to fresh southwest to southeasterly winds over most of the state.
Friday 4 September
Fine and mostly sunny conditions should prevail across most of the state under the influence of dry air and a stable atmosphere aloft. A slight chance of showers will return to the exposed southeast coast in the evening as winds tend more onshore. The chance of some morning frost areas over the northern Maranoa and Warrego district, and also about the higher terrain on the southern border ranges in the southeast. Mostly moderate southwest to southeasterly winds, fresh at times about the far southeast coast.
Fire Danger - Very High over northeastern districts.
Saturday 5 September
A high pressure system near Tasmania will shift slowly east, extending a ridge through most of Queensland. Fine and mostly sunny conditions should prevail across most of the state under the influence of dry air and stable atmosphere aloft. A slight to medium chance of showers about the southeast and for the northeast tropical coast associated with onshore winds. The chance of some morning frost areas over the northern Maranoa and Warrego district, and also about the higher terrain on the southern border ranges in the southeast.
Sunday 6 September
The high pressure system will shift into the Tasman Sea, with winds shifting more onshore for the east coast of Queensland. Fine and sunny conditions for most of the state, with the slight chance of showers for most of the east coast and northern Peninsula, increasing to a slight to moderate chance in the far southeast.
Monday 7 September
The high pressure system is expected to continue moving eastwards into the Tasman Sea while weakening, while a new stronger high moves into the Great Australian Bight. An upper trough and a surface trough are expected to move eastwards across southern Queensland, bringing showers and possible storms to the southeastern interior. The slight to moderate chance of showers for most of the east coast and also possibly on the western peninsula coast.
Tuesday until Thursday
The high in the Bight is expected to extend a strengthening ridge over Queensland, while the surface and upper troughs should move over the southeast and then offshore on Tuesday. Showers are generally expected for parts of the east coast during the outlook period. Showers and possible storms over the southeast on Tuesday as the upper trough and surface trough moves through then contracting offshore. There is uncertainty for Wednesday and Thursday, however there are likely to be showers along the east coast and over parts of the eastern interior.
The next routine forecast will be issued at 4:30 am EST Friday.