Friday evening forecast 22/09/23
22 September – National weather forecast presented by Alex Deakin.
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00:00Hello. This weekend will start chilly, but dry, and end quite mild, but also for many
00:06wet and windy. That is because of this, ex-hurricane Nigel. It's merging with another area of low
00:13pressure. No longer a hurricane through the weekend, but heading up away to the northwest
00:18of the UK, but still influencing things, particularly on Sunday. Ahead of that, we've got a little
00:25bump, a little ridge, a transient ridge of high pressure, or a travelling ridge, and
00:30that will bring most of us a fine day on Saturday. Before all that, well, we've still got low
00:36pressure nearby and still plenty of showers, lots of them around during Friday. They'll
00:40fade through the night, gusty winds over northern Scotland, but also slowly die down. So with
00:46most of us having clear skies and those lighter winds, it is going to turn pretty chilly.
00:51To start Saturday, we're looking at temperatures in single figures almost across the board
00:55and well down into those single figures across parts of Scotland. Some pockets in western
01:00Scotland and northern England may dip down to freezing. So yes, a chilly start to Saturday,
01:06but for most of us, a fine and bright start as well. There will still be some showers
01:10left over and a bit more cloud over eastern England, Yorkshire, Lincolnshire, and certainly
01:15the likelihood of a few showers across Norfolk. Still some showers over the Northern Isles
01:19as well. We're still quite breezy in the morning, but even here, the wind's easing
01:23down through the day and the showers fading. So for most places, dry and bright. Many of
01:28us will see quite a bit of sunshine too. In the west, however, notice a thin veil of cloud
01:34moving in, turning the sunshine hazy and that cloud thickening up in western parts of Northern
01:39Ireland to bring some rain here by the afternoon also. Temperatures though, when it's sunny
01:44and fine, recovering after that chilly starts into the teens, maybe the high teens across
01:49the south. So still maybe a touch below average for the time of year, but feeling pleasant
01:53enough I suspect in the sunshine with the relatively light winds. The winds, however,
01:57are not going to stay light because here comes the rain. That weather system we saw earlier
02:03sending the rain in, this tangle of weather fronts, it kind of gets stuck. And where it
02:09lies through Sunday, the rain is likely to build up and potentially causing a few problems.
02:14This weather front just wiggling and waving around, the isobars squeezing together as
02:18well. And we're particularly concerned across parts of Scotland that that rain, given we've
02:23already seen a lot of rain recently and it could, as I say, get stuck and generate a
02:27lot of rain, particularly over the hills of western Scotland and to the north of the Central
02:33Belt as well. So we could over the hills see 100, 120 millimetres of rain and certainly
02:39even at low levels quite widely in this zone, 30 to 50 millimetres of rain. But it's not
02:44just here. We will see that rain building up to across Northern Ireland, but also parts
02:49of Wales and north west England could see heavy bursts of rain, the brighter colours
02:53here and again, potentially lasting for a number of hours as these pulses continue to
02:58push up from the south. Those winds will exacerbate the rainfall over the hills as well. But notice
03:04the rain doesn't really get to the Midlands, eastern England. Most places here will have
03:08another dry, fine day on Sunday and much of southern England too. So here it'll be another
03:14dry and bright day on Sunday, but it will be windier and probably a little bit cloudier.
03:19But those outbreaks of rain, as I said, really building up during the course of Saturday
03:22and into Sunday. So that's why we have that warning in place. We need to watch other areas
03:27too, like Northern Ireland and Wales. Look at the temperatures, though. We've jumped
03:31up by several degrees in most locations by Sunday because that's a tropical system that's
03:36driving the wet and windy weather in. So inherently, the air is warmer, so temperatures
03:41will be higher. It's not going to feel that much warmer, though, because of the wet and
03:46windy weather, particularly in western Scotland. But we could easily get up to 20, maybe 21
03:51in a few places come Sunday afternoon. So some wet and windy weather to come. For more
03:55details on the weather warnings, make sure you stay up to date through the app, through
04:00the website. And of course, the best way to stay up to date is to follow us on social
04:04media.