Bureau of Meteorology: Summer flood warning for east coast, west expected to be dry

This summer is likely to be wetter than usual on the east coast, but drier than normal in many parts of Western Australia, according to the Bureau of Meteorology.

The bureau released its long-term forecast for the summer on Thursday and said it was particularly likely to be wetter along the NSW coast, most of Victoria, much of Queensland and northern and eastern Tasmania.

The bureau warned that significant rainfall could lead to flooding when rivers were already high, dams full and drainage basins wet.

“Above average rainfall also increases the risk of landslides and tree falls in areas with steep terrain and very wet soils,” the bureau said.

Nights are expected to be warmer than usual in the tropical north and some southern areas including Tasmania.

Days are also likely to be warmer than average in most of WA and the Northern Territory, coastal north and central Queensland, and parts of the south including Tasmania.

But cooler days are likely for most of NSW, parts of southern Queensland and Victoria.

Bushfires also remain a risk in South Australia.

“Vegetation growth after above-average rainfall may lead to a risk of grass fires,” the bureau warned.

Meanwhile, sea temperatures around northern Australia are well above average, increasing the risk of tropical cyclones and heavy rains.

Overall, the weather office warns of an increased risk this summer:

  • Prolonged heatwaves with higher humidity in southern areas;
  • Above average tropical cyclones and tropical lows;
  • coastal flooding in the east and north; Spirit
  • heat waves in the sea.

“A number of climate drivers across Australia are contributing to the wet outlook to the east, including a La Niña in the Pacific Ocean, a positive Southern Annular Mode and warmer ocean waters in Australia,” the office said.

“The Indian Ocean negative dipole event is weakening and likely to conclude by early summer, while the Pacific Ocean La Niña could subside in early 2023.”

Originally published as the Bureau of Meteorology, issues summer flood warning for East Coast

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