Forecast issued 9/10/18. Its been a long time coming, but large parts of QLD are about to experience some prolonged below average temperatures as South to South West winds dominate from late Thursday onwards. Above image via Pivotalweather showing temperature anomaly for QLD on Friday (difference compared to normal).
On Thursday, large parts of QLD are expected to be under the influence of warming temperatures as a trough moves East across the State and produces warm air ahead of it. Large parts of Northern and Central QLD are forecast to reach 30ºc+ with even South East and Southern QLD reaching the high 20’s or possibly even 30ºc around Ipswich and Gatton. These kinds of temperatures, especially over Southern districts are around 4-8ºc above average for this time of year.
That will be the last of it though for some time. Once the trough moves through over late Thursday and Friday, much colder South to South Westerly winds are forecast to dominate the majority of the State. These winds should last into the weekend, with Friday being incredibly colder than Thursday and Saturday colder than Friday as the winds take their toll on the atmosphere. Maximums across Southern and South East QLD are expected to struggle into the 20’s, with large parts of Southern Inland QLD staying in the teens. Maximums are likely to reach the low to mid 20’s across Northern and North West QLD also. Across the Granite Belt, temperatures may struggle to reach the teens on Friday and Saturday, staying below 12ºc for most of the day. These kinds of temperatures aren’t uncommon for this time of year, but after such a prolonged period of above average heat it will be well appreciated by many. Across Southern districts, you can even knock off another 3-5ºc for the wind chill factor too.
For comparison purposes, some areas across Southern Inland QLD may be between 9 and 12ºc colder on Friday than whats expected on Thursday.
During Saturday morning there is the chance of some isolated frosts around the Warrego and Maranoa, Darling Downs and especially the Granite Belt. Temperatures should be between -1 and 4ºc across these areas. The only hindering factor is expected to be the wind. Frost may struggle to settle while winds remain elevated – but the flip side of that is it’ll feel much much colder.