01/04/2014 BBC Weather

again. London, 21`22. 102 showers in the afternoon. The outlook, rather

cloudy with some rain on Thursday. Good evening. Before we get to the

weather details, little bit about the pollution which we have been

talking about in the weather reports over the last couple of days. The

pollution levels actually during the course of Wednesday, tomorrow, will

be very high across a large swathe of the country. A couple of reasons

why this is happening. During today, high levels of pollution across

parts of East Anglia but you can see how extensive it becomes tomorrow.

One of the reasons this is happening is because of a light wind dragging

pollution from here in our direction and on top of that, our own

pollution from industry, industrial pollution, but by Thursday, the

weather pattern will change so we think the pollution levels will tend

to go down a little bit. Certainly by Thursday. On top of that, we also

have the dust which has been driven in from the Sahara Desert so our

cars are pretty grubby. That will continue for another couple of days.

That leads to a high level of pollution but onto the forecast for

tonight, for most of us, and mild night. Some rain on the way. It has

been quite a chilly day in the north-east of the country and it

will be a fairly chilly night, 5-6. Ford in places, but then rain is

forecast for the south-west of the country and that will be moved

northwards. Hit and miss. I think tomorrow, from tomorrow morning,

from the south-west of the country all the way northwards towards

Northern Ireland and Scotland, these areas, by no means will be raining

all the time but from time to time there could be a downpour coming

through with rumbles of thunder. For the Southeast, a hazy day. A warm

one, possibly, up to 22. Depending on how much sunshine. Still pretty

chilly in the north-east. Thursday, a bit of an east-west split, so the

rain across western areas will help clear some of the pollution. There

is uncertainty how heavy it will be but I think by the time we get to a

roundabout Friday, there is a hint here in the wind direction, the wind

coming from the south-west, fresher Atlantic air finally.