Experts warn Queenslanders to stay cool, hydrated as temperatures expected to hit up to 46C Timelapse of rolling storm clouds full of lightning over Mt Morgan, near Gladstone in Queensland, on November 25. Footage courtesy: Aaron Young MEDICAL experts have warned that a searing temperature rise predicted for Sunday could be a killer. The Sunshine State is set for a scorcher, sending Queenslanders scurrying for shelter from sky-high temperatures around the state. In the southeast, Brisbane is tipped to reach 37C - the hottest day for the River City since December last year - with storms also predicted to rumble in. Inland, the mercury will reach as high as a dazzling 46C, while the Gold and Sunshine coasts are likely to escape with relatively cooler temperatures. The Australian Medical Association has issued a warning that the fierce heat could be life-threatening, and poses an "extreme risk" for children, the elderly and people with chronic illnesses. Bureau of Meteorology forecaster Adam Woods said Brisbane residents should prepare for soaring temperatures throughout most of the day tomorrow before late showers and storms tame the sky-high heat. Liam Wild, nine months, and sister Ruby, 3, find a way to cool off at their family's farm at Landsborough. Pic: Jamie Hanson "The sea breeze will be delayed in Brisbane, increasing the temperature up to 37C, which we should see in the afternoon," Mr Woods said. "There'll be isolated thunderstorms on Sunday with that heat," he said. It'll be a hot day but hopefully some cooling showers about across the whole southeast. Along the coast, temperatures will be milder, with the Sunshine Coast set to register tops of 34C and the Gold Coast 32C at Coolangatta. Mr Woods said temperatures around the southeast would remain around the 30C mark towards the new year, with scattered showers and storms forecast for that period. Further inland, Sunday's sweltering temperatures are expected to hit harder, with Ipswich likely to reach a top of 39C, while Gatton will reach 40C. The hottest temperature in the state is expected to be at the tiny central west town of Windorah where the mercury could peak at 46C. "You can probably bake an egg on a car bonnet in Windorah on Sunday," said Mr Woods. AMAQ president Dr Christian Rowan said the scorcher could lead to heat exhaustion and dehydration. "Dehydration can be a life-threatening condition, so if people don't keep up their fluids in those sorts of temperatures while outside in the hottest parts of the day they could be at extreme risk," he said. He said people should take particular care that children and those with chronic illnesses remained cool and well-hydrated, and urged residents to check up on older friends and relatives. Brisbane's South Bank is bracing for a deluge of visitors on Sunday, with around 5000 expecting to descend on Streets Beach and the Boat Pool, while ice creamery owners will be licking their lips in anticipation of bumper sales. Gelatissimo CEO Filipe Barbosa said some beachside Queensland stores could see as many as 2000 customers come through their doors this Sunday looking to chill out with a sweet treat. "We do a sun dance every day ... The minute it gets to beach weather, our sales certainly tend to spike," he said. We'd certainly expect any time the weather pushes up past the 28C mark, our sales do reflect the sunshine very closely. He said sunshine was the biggest driver for gelato sales, but temperatures above 35C could negatively affect sales at metro locations, with customers staying indoors to escape the heat. Meanwhile, ice skating rinks are also expecting a spike in business, with hundreds tipped to flock to Iceworld Acacia Ridge to enjoy the frosty temperatures around the rink. "On a hot day usually we do get a good crowd, but it's not overcrowded," said manager Duncan Michie. Hopefully we'll get more people here to try and cool down. The temperature inside will stay around 12C ... when it gets to 37C on Sunday I imagine I could sell parking space here. Pint-sized Peachester princess Ruby Wild, 3, knows how to survive the Queensland heat, cooling off with a dip in the cattle trough at her family's 68ha property in Landsborough. Aunt Andrea Cross said Ruby and baby brother Liam often use the trough, surrounded by cows, as a makeshift swimming pool. Ms Cross said the hot weather was playing havoc with farmers, who were desperate for rain after a number of dry seasons.