• Wed. Aug 10th, 2022

Damp spring will raise chance of floods, but reduce bushfire risk


Aug 31, 2021

Don’t get too used to the mild, sunny and dry end to winter and start to spring because it probably won’t last long.

The Bureau of Meteorology’s long-range outlook for spring is for above-average rainfall for most of southern and eastern Australia. The extra cloud will probably make the nights less chilly but keep a lid on daytime temperatures.

Melbourne’s near-term outlook, though, includes some warmth that will tempt people outside. Thursday’s forecast top of 26 degrees would make it the warmest day in the city since early May.

“It’s certainly a lot wetter than we had back in 2017-19 when much of eastern and southern Australia was very dry [going into spring]” Andrew Watkins, head of the Bureau’s Operational Climate Services, said.

“The main thing we’re watching is we have high rivers and full catchments,” he said, adding Victoria’s wetter-than-average prediction for spring extends over most of the state.

Eastern Victoria is “fairly wet at the moment”, which brings with it reduced bushfire risk for later in the season but also elevated flood risk for now, Dr Watkins said.

Melbourne’s winter would likely come in as its warmest for maximum temperatures since 2014, Ben Domensino, a senior Weatherzone meteorologist, said.

The city collected about 125 millimetres of rain, about 20 millimetres less than the long-run norm for winter, he said.

Despite the expected wetter-than-usual spring, the odds favour parts of coastal Victoria having a warmer-than-average season, the Bureau predicted.

“It could be warmer (than average) south of the Divide,” Dr Watkins said. Tasmania and the Top End should also have a relatively warm spring.

Conditions favouring the damper-than-usual spring include relatively warm waters off north-west Western Australia and relatively cool central Pacific that is leaning towards a La Nina event, the Bureau said.

Leave a Reply

Your email address will not be published.