Saturday morning forecast 21/08/21
21 August - National weather forecast presented by Alex Deakin
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00:00Hello again. Welcome to your latest update from the Met Office. A fair bit of clouds
00:04and a fair bit of rain around on Saturday. Some of it could be heavy. There's a Met Office
00:09thunderstorm warning in place for Saturday afternoon and evening. However, it does all
00:15ease off overnight and it's not completely dry, but Sunday looks a brighter day and that
00:21should be something that trends into next week. But before we get there, we do have
00:26to deal with the wet weather sweeping in. Well, I say sweeping in, it's more edging
00:31in. It's moving fairly slowly as it spreads north across Scotland, creeping into western
00:35parts of England and also across much of Wales through the night. So soggy for many, but
00:41I suspect much of eastern England will stay dry. And look at the temperatures here, holding
00:44up at 17 Celsius, a really quite warm night. So not a cold start to Saturday, but it will
00:50be a dull and for many, a damp start. Maybe some morning brightness over eastern England,
00:57some hazy sunshine here. Northwest Scotland, also not too much rain here with a bit of
01:01sunshine. But elsewhere, outbreaks of rain moving north, followed by brighter skies.
01:07But a bit of sunshine for Wales and southwest England is likely to spark some big thunderstorms
01:13during the afternoon. And they could cause some problems as they could across Northern
01:17Ireland. And so we do have Met Office yellow warning in place. Temperature wise, well,
01:22before the rain arrives, as I said, a bit of brightness could see temperatures in East
01:26Anglia up to 22 or 23, 20 degrees possible in the Murray Firth as well. But for most
01:31of the UK, we're looking at high teens, low 20s, maybe 21 or 22 in the southwest if we
01:37do see some decent spirals of sunshine. But as I mentioned, the brightening up behind
01:42that first band of rain will spark some thunderstorms, increasing chance of seeing them in the
01:47initially well southwest England, Northern Ireland. But as the rain clears, also parts
01:51of northern England and the Midlands. So we do have a Met Office yellow thunderstorm warning
01:56in place through the afternoon and evening. Slow moving downpours, some pretty bleak conditions
02:03on the roads, a lot of spray and surface water. And with thunderstorms around, what was the
02:07potential for power issues to pretty heavy rain across parts of southern Scotland also
02:13and the thunderstorms will rumble on, I suspect, well into the evening. But they do tend to
02:19ease off through the early hours and the more persistent rain will also tend to ease across
02:24northeast England and eastern Scotland. So looking a bit drier as we start Sunday again,
02:29it'll be a relatively warm start to the day with temperatures mostly in the teens and
02:34Sunday itself drier and brighter. Still a lot of cloud, quite a grey morning for much
02:39of eastern Scotland, northeast England, with some drizzly rain here. And we will see some
02:43showers developing through the day, parts of the Midlands and eastern England in particular,
02:48but perhaps more scattered than the showers on Saturday and perhaps not as intense either.
02:54Potential for some heavy rain for Lincolnshire and parts of East Yorkshire and northern parts
02:59of East Anglia for a time on Sunday. But certainly further west, many places looking largely
03:04dry and bright on Sunday with a bit more sunshine around. It'll feel a bit warmer, even though
03:09temperatures will mostly still be at or below average high teens, low 20s in places. But
03:14that drier weather in the west is a sign of things to come as high pressure moves in next
03:19week. It's looking an awful lot drier for much of next week, sunnier as well. And although
03:25not spectacularly hot, it will also start to feel a little bit warmer too. For more
03:31details on that, make sure you're following the Met Office on social media and for the
03:34very latest on the warnings, make sure you've got the Met Office app. Or of course, you
03:39can check out the latest on our website.