Friday evening forecast 04/08/23
04 August - National weather forecast presented by Aidan McGivern.
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00:00Hello, another weekend, another area of low pressure. This one has been named Storm Anthony
00:06because the impacts are expected to be a step above previous lows we've seen in the last
00:10few weeks, most notably because it's occurring during a busy Saturday right at the peak of
00:15the holiday period in the UK and it's expected to bring heavy rain, strong winds and the
00:21risk of gales to western and southern parts of the UK. Initially, it's the rain that is
00:26arriving ahead of Storm Anthony and that rain sets in during the evening on Friday
00:30across Northern Ireland, heading into western Scotland, western fringes of England and Wales
00:35as well. But it's really after midnight that the particularly heavy rain arrives into Northern
00:40Ireland and Northern Ireland, having seen its wettest July on record, is most prone
00:45to impacts from that heavy rain. In parts of Northern Ireland, we could see 30-40mm
00:51falling in a few hours and overall through the night and into the start of Saturday,
00:5530mm is expected widely, 60-70mm is not out of question in some exposed spots, particularly
01:02for southern parts of Northern Ireland. So, risk of localised flooding, a yellow warning
01:07in force. The rain also spreading by this stage into western parts of England, Wales
01:12and Scotland. Showers continuing for the north and east of Scotland, one or two for north-east
01:16England, otherwise drier towards the east and the far north of the UK. But this is how
01:21it's looking for Northern Ireland, a warning in force. Apart from the far north of Northern
01:25Ireland, because of that heavy and prolonged rainfall, 70mm possibly over the Morn Mountains
01:31could cause impacts as we wake up on Saturday. It's not going to be a cold start to Saturday,
01:36certainly temperatures staying at 13 or 14 Celsius because of the arrival of the cloud,
01:41the rain and the wind. Then on Saturday morning, really it's a washout across much of England,
01:47Wales, southern Scotland, Northern Ireland. The rain does clear early on from Northern
01:51Ireland, replaced by showers. And really it's a showery picture for much of the day
01:55for Scotland. Those showers really getting going across central and western parts in
01:59the afternoon. But it's across England and Wales where the heavy and persistent rain
02:03will be most likely. And across central parts of England, there's the risk of some intense
02:07thunderstorms breaking out during the afternoon as well. That will need keeping an eye on.
02:12But it's after the wettest conditions clear from Wales and the south-west by the afternoon,
02:18as the skies brighten, that the strongest winds will arrive through Irish Sea coasts
02:24and then into south Wales, south-west and southern England. So, warning has been issued
02:30for this part of the world. We're looking at widely inland 40mph gusts, exposed parts
02:36inland 55mph wind gusts, and around some exposed coasts of west Wales and south-west England
02:4365mph wind gusts. Now, these kinds of wind gusts wouldn't necessarily warrant a named
02:49storm in February, for example, but this is a Saturday in August and it's in a part of
02:55the UK where a lot of people are visiting, camping, caravanning, going to the beaches.
03:00And as a result, these kinds of winds are likely to cause more impacts compared with
03:04a different time of year. And it's worth heeding messages of advice, paying attention to the
03:10forecast because of these winds, particularly if you're camping or if you're heading to
03:15the coast. Large waves also warrant a mention. And the heavy rain as well, that's going to
03:21cause some impacts on the roads, I suspect, through the central and northern parts of
03:24the UK as we go into Saturday afternoon, even if these areas aren't covered by a warning.
03:29Heavy showers continue for northern parts of the UK and western areas into Saturday
03:33night. The more persistent wet weather further east eventually eases away by the start of
03:40Sunday. Likewise, the strongest of the winds will pull away. Then we've got clear skies
03:44returning for many by Sunday morning, a cool start to the day with temperatures in single
03:49figures in places. But Sunday certainly is looking much calmer. We've got Storm Anthony
03:54moving into the continent, actually pretty strong winds expected across much of the continent
03:59through Sunday and the start of next week. But for the UK, northwest of the airflow and
04:04that will bring a return to sunny spells and showers. So although there'll still be some
04:08heavy downpours about on Sunday, it won't be as persistent and there'll be a better
04:12chance of seeing some sunny spells in between, particularly around coastal areas. And in
04:17that sunshine, it will feel a little warmer, even if temperatures are still going to be
04:21below average for the time of year. Now, there will still be a few showers about as we go
04:27into the start of next week and a lot of cloud cover. But through next week, there's a decent
04:32signal now that higher pressure will become more influential. That means longer, drier
04:37periods, warmer weather, albeit not with weeks and weeks of hot sunshine. Bye bye.