Thunderstorms bringing damaging rain, hail

Australian Community Media

Severe thunderstorms for north-east NSW and south-east Queensland.

Transcript

00:00Severe thunderstorms could bring damaging wind, heavy rain and large hail to parts of

00:04northern New South Wales and southeast Queensland today and once again tomorrow.

00:09Let's get into it and we'll see one of the driving factors for thunderstorms on Tuesday

00:14is a coastal trough, this dashed blue line here.

00:17To the south of that we have cold southerlies, that's moving up the New South Wales coast

00:21and into Queensland a little bit later on Tuesday.

00:23That trough will get some support from the upper atmosphere and those storms are expected

00:27to develop from mid-afternoon today through until this evening and then once again on

00:31Wednesday, around the middle of the day.

00:34Many areas could see severe thunderstorms so we're going to put on our thunderstorm

00:37outlook map for Tuesday and I'll just remind you what the colours mean.

00:41The green areas show where we might see run-of-the-mill non-severe thunderstorms, it's the yellow

00:46and the red areas that I want to draw your attention to, that's where we could see severe

00:50thunderstorms.

00:51In New South Wales that means the mid-north coast and the northern rivers area.

00:55For Queensland, it's mostly about the southeast, also pushing up into the Wide Bay Burnett

01:00District.

01:01The red area here shows where severe thunderstorms are likely to occur on Tuesday afternoon or

01:06evening, that's the highest risk area.

01:09Notice it is pulled a little bit away from the coast, meaning Brisbane, Gold Coast, Sunshine

01:13Coast do fall outside of that greatest risk area and it's tending more towards inland

01:18places like Ipswich and up towards the far east of the Darling Downs.

01:22If we see severe thunderstorms on Tuesday on the New South Wales side of the border,

01:26the primary threats are damaging wind gusts over 90km an hour and large hailstones greater

01:31than 2cm across.

01:33If we see these storms on the Queensland side of the border today, not only could we see

01:37the damaging wind and the large hail, we could get areas of heavy rain that lead to flash

01:41flooding.

01:43Storms are expected to develop through the afternoon hours and could go well into the

01:46evening on Tuesday.

01:48Now a look at Wednesday's map for the same area, and we see the activity has shifted

01:52slightly northwards.

01:54That means that across the north eastern coast of New South Wales, thunderstorm activity

01:58subsides on Wednesday, and even in Queensland, the focal point shifts a little bit north.

02:04The highest risk area, once again in the red, where severe thunderstorms are likely, is

02:09a bit further inland too, west of Toowoomba and east of Roma, but we do see that yellow

02:13area where severe thunderstorms are possible, pushing out towards the coast.

02:18And once again on Wednesday, wind, hail and heavy rainfall are all a possibility, in particular

02:23that heavy rain could hit the coast north of Brisbane, especially around that Sunshine

02:27Coast area.

02:29Some of the most significant storm impacts expected, trees down which could cause damage

02:33and power outages, dangerous driving conditions, whether that's because of high winds or potentially

02:39heavy rain causing flash flooding and poor visibility, and we could just see damage to

02:43properties, cars or any outdoor furniture, fences and the like across your property.

02:49A quick look now to Thursday, as we're going to see further showers along this coast, but

02:53the intensity and severe thunderstorm activity is expected to subside for most places on

02:58Thursday, it's just more of a standard showery day across the east coast of the country,

03:03and over the next three days, remember, thunderstorms Tuesday, thunderstorms Wednesday, regular

03:08showers on Thursday, this is how much rain we might get.

03:1120 to 40 millimetres through many areas of northeastern New South Wales and central and

03:16southeastern Queensland, with the focal point for rain looking to be this coastline here,

03:20Sunshine Coast up towards Gympie, where we could see between 70 and 100 millimetres over

03:24the next couple of days, likely to see some of those rain gauges there pick up triple

03:28digits in terms of how much rainfall they receive between now and Thursday.

03:33Stay up to date with the forecast and any severe thunderstorm warnings that do get issued

03:36today at the Bureau website and app, thanks for watching, stay safe.

03:41Thanks for watching.

03:42Stay safe.

03:43Bye.

03:44Bye.

03:45Bye.

03:46Bye.

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