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Hello. This has been a week of temperature contrasts - | 0:00:03 | 0:00:05 | |
warm in any spring sunshine, cold in the cloud and the wind. | 0:00:05 | 0:00:08 | |
And that's the story as we go over the next few days. | 0:00:08 | 0:00:11 | |
In actual fact, for the start of this weekend, | 0:00:11 | 0:00:14 | |
it will gradually start to feel colder, | 0:00:14 | 0:00:16 | |
we'll see sunshine and showers, mostly out towards the east, | 0:00:16 | 0:00:19 | |
but through the night, with clearer skies, | 0:00:19 | 0:00:21 | |
frost could be more of an issue. | 0:00:21 | 0:00:23 | |
This graph shows where we are. | 0:00:23 | 0:00:25 | |
At the end of April and into May | 0:00:25 | 0:00:27 | |
temperatures across the UK | 0:00:27 | 0:00:29 | |
average out at about 14 degrees. | 0:00:29 | 0:00:31 | |
For the start of this weekend we're just below average in terms of feel, | 0:00:31 | 0:00:35 | |
by the time we get to Tuesday and Wednesday, | 0:00:35 | 0:00:37 | |
a really colder feel here, | 0:00:37 | 0:00:39 | |
before we revert back to around just below average | 0:00:39 | 0:00:43 | |
into next weekend. | 0:00:43 | 0:00:45 | |
More on that to come in just a moment, | 0:00:45 | 0:00:47 | |
but for the start of the weekend, | 0:00:47 | 0:00:49 | |
high pressure's still influencing the story. | 0:00:49 | 0:00:51 | |
We've still got this northerly flow so an exposed North Sea coast, | 0:00:51 | 0:00:55 | |
that's where it's always going to feel colder, | 0:00:55 | 0:00:57 | |
and that's where the risk of showers will be as well. | 0:00:57 | 0:00:59 | |
A good deal of usable weather, certainly further west - | 0:00:59 | 0:01:02 | |
dry and predominantly sunny, | 0:01:02 | 0:01:03 | |
and here, in a little more shelter, it won't feel quite as bad. | 0:01:03 | 0:01:07 | |
Particularly for the south-west, | 0:01:07 | 0:01:08 | |
where we had a lot of cloud and rain on Friday - | 0:01:08 | 0:01:10 | |
12 or 13 degrees the high. | 0:01:10 | 0:01:12 | |
But on those exposed North Sea coasts, | 0:01:12 | 0:01:15 | |
6 to 9 degrees at the very best. | 0:01:15 | 0:01:17 | |
The clearer skies dominate through Saturday night into Sunday, | 0:01:17 | 0:01:21 | |
a widespread frost likely in rural parts | 0:01:21 | 0:01:23 | |
as temperatures fall below freezing, and that is going to be | 0:01:23 | 0:01:26 | |
a shock to the system if you're up and off early on, | 0:01:26 | 0:01:29 | |
especially for those waiting on the start line for the London Marathon. | 0:01:29 | 0:01:33 | |
It's going to be a sunny start, but a chilly one. | 0:01:33 | 0:01:35 | |
Eventually on Sunday we could see a little more cloud | 0:01:35 | 0:01:38 | |
and some showers spilling down from the north-west, | 0:01:38 | 0:01:40 | |
and it will feel a little bit colder as well on Sunday. | 0:01:40 | 0:01:43 | |
Top temperatures likely to be between 6 and 12 degrees. | 0:01:43 | 0:01:48 | |
Now, the real cold air set to arrive as we move into Monday and Tuesday | 0:01:48 | 0:01:54 | |
behind this weather front | 0:01:54 | 0:01:55 | |
that's slowly meandering its way steadily southwards. | 0:01:55 | 0:01:57 | |
I suspect it will be a slightly windier day as well | 0:01:57 | 0:02:00 | |
as we go into Monday - | 0:02:00 | 0:02:02 | |
that's just going to exacerbate that colder feel to things. | 0:02:02 | 0:02:05 | |
Again, sunny spells and scattered showers, | 0:02:05 | 0:02:07 | |
but we run the risk of seeing these showers turn increasingly wintry | 0:02:07 | 0:02:11 | |
at lower levels, particularly through the night - 6 to 12 degrees. | 0:02:11 | 0:02:15 | |
So there could be some slushy deposits first thing in the morning. | 0:02:15 | 0:02:18 | |
If you get some sunshine, that'll melt it away pretty readily. | 0:02:18 | 0:02:21 | |
We're not expecting it to cause too much of an issue, | 0:02:21 | 0:02:24 | |
but it's worth bearing in mind that we could see a rash of showers, | 0:02:24 | 0:02:27 | |
some of these turning increasingly wintry, | 0:02:27 | 0:02:29 | |
and add on that cold northerly wind, it's going to continue to feel | 0:02:29 | 0:02:33 | |
pretty disappointing for this time of year. | 0:02:33 | 0:02:35 | |
Not much change in the weather story as well as we go into Wednesday - | 0:02:35 | 0:02:38 | |
we still keep the wind direction from the north, | 0:02:38 | 0:02:41 | |
we still run the risk of some showers. | 0:02:41 | 0:02:43 | |
But the showers should be few and further between, I suspect, | 0:02:43 | 0:02:46 | |
on Wednesday, and again, highs of 7 to 13 degrees. | 0:02:46 | 0:02:50 | |
How long is this weather pattern set to last? | 0:02:50 | 0:02:53 | |
Well, it does look as though we could see a change into early May. | 0:02:53 | 0:02:57 | |
Now, we've had this amplification in the jet stream | 0:02:57 | 0:02:59 | |
and it's been sitting in a northerly direction right across the country, | 0:02:59 | 0:03:03 | |
dragging in this colder Arctic air. | 0:03:03 | 0:03:04 | |
The mild air out to the west all the time, | 0:03:04 | 0:03:07 | |
it looks as though high pressure is set to build from the west, | 0:03:07 | 0:03:11 | |
an Atlantic influence returning, | 0:03:11 | 0:03:13 | |
and so the winds will swing more round to a westerly | 0:03:13 | 0:03:16 | |
as we approach the early half of May. | 0:03:16 | 0:03:19 | |
So fingers crossed, it looks as though we're set for something | 0:03:19 | 0:03:22 | |
just that little bit milder, drier. | 0:03:22 | 0:03:23 | |
There will be some showers around, but also some sunshine, | 0:03:23 | 0:03:26 | |
and feeling better in the sun. | 0:03:26 | 0:03:28 | |
That's it - enjoy. | 0:03:28 | 0:03:30 |