Fog!

These are two of the fantastic pictures sent in to the BBC website today... Can you decide where they are before you look at the other images in the gallery? And since the fog looks set to last another couple of days, why not get out and take some pictures yourself? Then send them to the BBC and/or to me!

Are you dreaming of a White Christmas?

Sadly, it seems unlikely your dreams will become reality if you're still in the UK, according to the Met Office.
The satellite image shows that there is a classic anticyclone over the UK at the moment, which is causing it to be a bit chilly, as well as resulting in the heavy fog which is causing misery for passengers stranded at airports all around the UK.

Click on the image to link to the Met Office website, where you can look at more satellite images, and also the pressure charts - check out those isobars!

The BBC Weather site has a good explanation of how fog is formed here...