NSW warned to prepare for dangerous, possible supercell thunderstorms

RESIDENTS in parts of New South Wales are being warned to prepare for dangerous thunderstorms tomorrow.

Experienced forecaster and storm chaser Andy Barber from South Brisbane Storms warns severe and potentially dangerous thunderstorms are likely to impact central and northern areas of the state.

Mr Barber said there would be a focus on parts of the Upper and Lower Western, North West Slopes and Plains, Central West Slopes and Plains, Northern Tablelands, Central Tablelands, Southern Tablelands, Hunter, Central Coast and the Northern Rivers districts.


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“Thunderstorms will likely deliver localised damaging to potentially destructive winds tomorrow afternoon and evening along with very large hail, especially taking into account how cold and unstable the upper atmosphere is,” Mr Barber said on Sunday.

“Isolated wind gusts, especially for inland New South Wales may exceed 130km/h due to very strong instability.

“The wind shear profile, especially about central and northern New South Wales is supportive of potential supercell thunderstorms (rotating storms) which will also aid in thunderstorm longevity.”

Mr Barber warned heavy rainfall beneath thunderstorms may lead to localised flash flooding and slight rises in local rivers and streams over the next 48 to 72 hours.

According to Higgins Storm Chasing, residents in the purple shaded area on the chart below are at “extreme risk” of supercells.

“In the extreme risk area, supercells are likely to develop which could produce giant hail over 5cm, destructive winds over 125km/h, very heavy rainfall, flash flooding, frequent dangerous lightning and a risk of a tornado,” Higgins Storm Chasing said on its website on Sunday.

The Bureau of Meteorology’s official forecast states severe thunderstorms are likely to affect northeast parts of the state on Monday, and again in the far northeast on Tuesday.

To stay up-to-date with the latest official weather forecasts and warnings, visit the official Bureau of Meteorology website at www.bom.gov.au

Jaydan is a Digital News Producer at myGC.com.au. He was appointed Managing Editor of the Junee Southern Cross newspaper at the age of 17 and has since held positions in a number of newsrooms in New South Wales and Queensland. Jaydan joined the Hot Tomato Broadcasting Company in 2013 and has been keeping the Gold Coast up to date with the latest local, national and international news online at myGC.com.au ever since. With almost ten years’ experience in both print and digital media Jaydan is committed to providing the best coverage during major news and weather events.

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