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Queensland in for a week of soaking

Southeast Queensland, Australia, is bracing for severe weather conditions this week. The forecast includes severe thunderstorms, damaging wind gusts, and localised large hail, particularly affecting the region on Wednesday. 

Showers and storms are likely to extend to parts of southeast Queensland this afternoon before merging with showers and rain areas starting to spread down from the northwest overnight tonight and particularly during tomorrow.

This will be ahead of a secondary upper trough moving across the area.

Some areas throughout the state are expected to receive heavy falls of 50 to 100mm over the next 48 hours, with locally higher totals possible.

May be an image of map and text that says 'GFS ACCUMULATED PRECIP for Brsbane Dysart Clermont Tue, Nov 2023 rom 000 0 048 Marborough Alpha Emerald Init: 2023112612z Rockhampton HeronIs Gladstone Tambo Rolleston Biloela MiriamVae Monto Bundaberg Taroom Biggenden Maryborough Mundubbera Roma Murgon Gympie Miles. Kingaroy CCA Surat. Maroochydore Dalby STG Bollon Toowoomba Moonie Millmerran Brisbane Amberley Southport Goondiwindi Hebel MGI Warwick Inglewood UBV Casino Tenterfield NorthStar Bonshaw Byron Bay Moree. Evans Head Walgett Grafton Narrabri. Guyra Coffs Harbour Armidale Gunnedah Coonabarabran Min: Tamworth Max: 124.8 Kempsey 08 Millimetres Rain 17 WEATHERWATCH HERWATCH'

GFS forecast rain totals (Source: Weatherwatch MetCentre)

Interestingly enough, high-resolution model data (ACCESS C) is showcasing falls of 100-200mm across parts of South East Queensland during this time. While some local flash flooding is possible in the areas where the heavier falls occur, widespread extreme flooding is not expected.

access c

High resolution ACCESS C accumulated rainfall totals next 42 hours. Image via Weatherwatch MetCentre

 

Tuesday will also see a significant thunderstorm outbreak across western NSW and far eastern regions of South Australia. A powerful upper low will interact with a surface low, and potentially weak warm front. Strong speed and direction wind shear will result in a scattering of supercells to develop, with damaging to locally destructive winds, large to giant hail, and heavy to locally intense rainfall.

bom storms

Bureau of Meteorology Day 2 thunderstorm threat map. 

 

This same system will shift east on Wednesday, affecting the more heavily populated regions of eastern Australia. A large squally line, or broken line of severe storms is expected, spanning a vast region of NSW into central Queensland.

 

G storms

ACCESS G storm potential for Wednesday afternoon 29/11/2023. Image via Weatherwatch MetCentre

 

Showers and thunderstorms will persist across many parts of eastern and northern Australia during the next week. This period could bring widespread soaking rainfall for the region almost every day next week. 

The recent rain events have thankfully cleared all bushfire warning levels from Queensland, and lessened the danger in NSW, with some areas now peaking at a Moderate fire danger rating. 

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