Detailed weather forecast.
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Hello. Well, belatedly perhaps the winter has been showing its teeth
over the last few days, hasn't it?
Cold east wind and some snow for some of us.
The cold spell is not going to last all that long.
In fact, the blues get swept away fairly promptly and next week
we get much warmer air indicated by the yellows here,
a real taste of spring for some of us in actual fact.
Let me show you in a different way, through this weekend
we're struggling to get much higher than what,
3 or 4 degrees,
but temperatures do rise steadily and quite widely will be
into double figures come the middle of the week and with some sunshine,
you'll notice the difference,
that's for sure.
It doesn't feel much like spring
out the at the moment, though does it,
with that cold easterly wind still?
Lots of cloud, rain, sleet, snow,
most of the stuff over this high ground, Wales,
the Peak District and the Pennines
where some high level routes
could be quite badly affected.
Mostly rain at lower levels,
not much sunshine, though,
grey and cold, 3 and 4 degrees
is the best I can offer you
in many places, not helped by the strength
of the wind which will actually strengthen
further through Sunday night
and on into Monday as indicated
by the tightening of the isobars.
Monday will be a very windy day indeed,
particularly out west,
where we're expecting gales
around exposed coasts and headlands.
But we are going to see
increasing amounts of sunshine
spreading up from the south.
A real change in the weather
for many of us and with higher
temperatures as well,
it's going to feel much more pleasant
across the southern half of the UK,
still pretty raw further north
with a lots of cloud still
and that gusty wind across
eastern Scotland and north-east England.
Still pretty windy on Tuesday,
that south-easterly coming in off the continent,
but we've got a front trying to push in off the Atlantic
and that will make some headway
into the far south-west of England,
maybe the far south-west of Wales,
so some patchy rain here eventually.
Most other places will be dry,
some sunshine will help the feel of things,
but still that chilly wind
across the more northern and eastern areas.
Now, by Wednesday, that front
will have staggered some way inland,
its exact position a little bit uncertain,
so don't take the positioning
of the rain too literally.
There will be some patchy rain around.
The winds won't be as strong
and they're starting to come up
from the south or even the south-west again,
a milder direction, in fact,
by Wednesday, many of us
will be in double figures.
By Thursday, it looks as if
most of the action, most of any wind
and rain will be across
the far north of Scotland.
For the rest of us, much lighter winds
and again it'll feel pretty pleasant
with temperatures widely up
into double figures once more.
Here's the big picture then,
with that front stranded across the north,
it's tied in with an area
of low pressure out in the Atlantic
which is trying to come in
on a somewhat re-invigorated jet stream.
The jet stream has been pretty limp through this winter.
It's been deflected away from our shores which
has meant that much of the winter has been on the dry side.
But the jet, for a time at least, later on in the week,
will be reinvigorated as it oscillates its way towards us.
How long will that last?
How long will the more unsettled spell continued?
Well, some clues perhaps lie down in the tropics.
There's known to be a link between pulses of energy in the atmosphere,
which move the way west to east across the tropics
and the behaviour of our jet stream closer to home and it does look
as if one such pulse of energy across the tropics
is actually likely to stop the jet stream from livening up again.
It looks as if that jet could well be blocked once more,
so any wetter spells could be quite brief
and a predominantly dry theme
continues into the latter part of this month.
I'll give you more details
on that tomorrow.