Windy, wet, and cold week ahead for south-east Australia

Australian Community Media

Sunshine finally returning to the east as parts of the south experience a return to cold, wet weather conditions.

Transcript

00:00A windy, showery week lies ahead for much of southeastern Australia, with a cold outbreak

00:05to come from Friday, particularly impacting South Australia, Victoria, Tasmania and parts

00:11of New South Wales. I'm going to take you through a few of the key hazards we can expect over the

00:16week ahead. We'll start with a look at the satellite imagery from the last few hours.

00:20We can see plenty of cloud moving through eastern parts of South Australia, starting to push into

00:25western Victoria. Now this cloud band actually moved through Western Australia on the weekend,

00:30but it's now heading east, pushing in ahead of a low pressure trough and cold front,

00:35which are going to sweep across the southeastern states over the next few days. Now this low

00:40pressure trough and cold front are the first of several weather systems which are going to move

00:46through southeastern Australia over the week ahead, bringing some fairly wet, windy and cold conditions.

00:52I want to start by taking a closer look at the winds. I'm going to look at the winds above the surface,

00:58around one and a half k's above the ground. I'm doing this to get an impression of how the winds

01:03are moving in the atmosphere, how the atmosphere is developing and also the strength of some of

01:07those wind gusts that might reach the surface. So starting with today, we can see the stronger

01:12winds streaming down across parts of southeastern South Australia. So strong and gusty conditions are

01:18expected to develop. We could see some locally damaging gusts in parts, but they're

01:22only a low risk. As that burst of strong winds moves into Victoria tomorrow, however,

01:27there is a greater risk of damaging wind gusts. You can see the winds flaring in particular

01:32about the elevated parts of Victoria. Now in response to that risk, we have issued a severe

01:38weather warning for damaging winds. It covers many of those elevated parts of Victoria and southeast

01:44alpine New South Wales. Now for Victoria, the risk is from early Tuesday morning all the way through

01:49until later in the day on Tuesday. We could see damaging wind gusts in any of these areas,

01:54bringing the risk of downing trees or tree limbs, potentially leading to dangerous driving conditions

02:00as well. Through southeast alpine New South Wales, the risk is developing from Tuesday afternoon,

02:06pushing through into the evening. But it's not just Tuesday that's going to be a windy day. We see

02:11those very windy conditions continuing into Wednesday and through much of the rest of the week.

02:16You can see here that burst of stronger winds moving off to the east during Wednesday,

02:21another low pressure trough bringing further strong winds through the later part of Wednesday.

02:26A little bit of a lull during Thursday, but still strong winds along the coast before a much stronger

02:32cold front moves up on Friday, bringing yet another burst of widespread strong winds. You can see these

02:38red and orange colours here. While it is likely to be strong and gusty at many times this week,

02:44there is that acute risk of locally damaging wind gusts in some areas. It is a really good idea to

02:49keep an eye on the forecasts and warnings over the next few days.

02:53Now another key feature of the week ahead is going to be the cold. To paint a picture of the cold,

02:58I'm going to look once again above the surface, temperatures about one and a half Ks above the

03:02ground. Again, that gives me an impression of how the colder and warmer air is moving in the atmosphere.

03:09I've overlaid the forecast daily maximum temperatures, though, so you can track how

03:13things are looking in your location. Now at the moment, we're really looking at green colours across

03:18the map, so moderately cool conditions across the southeast. From around Wednesday, we see those

03:24colours start to tend blue. The cooler air starts to move in and our daytime maximum temperatures start

03:29to drop. That's going to continue through Thursday, but the coldest air is going to move in on Friday with

03:36that strong cold front. You can see the colours tending white-blue through those southern areas

03:41there. That coldest air is going to push through on Friday and Saturday with very low daytime maximum

03:47temperatures forecast. It's also going to drop the snow level right down across that period.

03:54First of all, we're going to see the snow level dropping around the middle of the week. By early

03:58Thursday morning, that snow level is likely to be down to around 700 metres over Tasmania, around

04:031000 metres or so over the mainland. But as that coldest air moves in on Friday into Saturday,

04:09the snow level will drop even further. We can see the snow starting to flare in areas further north,

04:16at lower elevations as well. By Saturday morning, we're really expecting to see the snow level as low

04:22as 300 or 400 metres across Tasmania. In Victoria, as low as 600 or 700 metres, possibly bringing snow to

04:29areas like the Macedon Ranges. In New South Wales, as low as around 800 metres about the central Tablelands

04:35and Blue Mountains, with possible snow flurries about the Barrington Tops and northern Tablelands as

04:40well. It is likely to be a very wintry weekend next weekend, so make sure you're aware of that cold

04:47weather risk in your area. Finally, a look at the rainfall over the next five or so days, from midnight last

04:54night out to around midday on a Saturday. Fairly widespread moderate rainfall totals are expected

04:59across southeastern Australia over the week ahead, with a particular burst of rain expected with the cold

05:05front tomorrow, Tuesday. But we can see some areas which are likely to see more rain than others,

05:11particularly through northern and western parts of Tasmania, about elevated parts of eastern Victoria,

05:17and through some parts of South Australia. These areas are likely to see rainfall accumulations in

05:23excess of 50 to 80 millimetres across the course of the next week, with some locally higher accumulations

05:30as well. With wet, windy and cold conditions all on the way this week, it is essential to stay up to

05:38date with the lowest forecasts and warnings via the Bureau's website, the BOM Weather app and via our

05:43social media. Stay safe and we'll catch you next time.

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