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Latest Weather News
April 2024 - Was it that cold overall? A look at the statistics
General perception from many is that April was a cold month, but statistics would suggest otherwise, with the average temperature for the whole month coming in just above the 30 year average for the UK as a whole. A warm first half to to the month averaged out the cold second half. View the full blog here
Bank Holiday Offers Sunshine and Showers Before High Pressure Arrives Next Week
The Bank Holiday weekend offers a mix of sunshine and showers across the UK, not the complete washout some forecasting models were suggesting earlier this week. Next week, high pressure arrives on the scene, but only for a relatively brief stay. Read the full update here
Bank Holiday weekend weather - a mixed picture
It's a mixed picture for the upcoming Bank Holiday weekend. at times, sunshine and warmth with little wind. However, thicker cloud in the north will bring rain and showers. Also rain by Sunday for Cornwall. Read the full update here
Question
Atleastitwillbemild
Hi I had a question about Freezing fog that I don't seem to be able to find the awnsers for by google searching. Its my favourite type of weather phenomenon but I don't get to see it very often in my part of the world (Thames Valley/Marlborough Downs)
We get plenty of fog here, autumn and winter, and there are many frost pockets and hollows but getting frost and fog at the same time always seems to be rare. I know freezing fog is brought about obviously by sub zero temperatures and areas of clear high pressure in winter, by why is that some clear some frosty highs produce freezing fog occaisonally while many more usually don't?
What are the exact conditions needed for it to form other than clear highs and very low temps?
During December 2010 we had almost 3 weeks of lying snow under both cloudy and clear conditions and freezing fog formed on only one of those nights. It was neither the mildest or the coldest night either. I see a lot of people mention on forums when looking at certain charts that due to what they see, freezing fog could definitely be a risk. What is it about a particular chart that makes a cold frosty high more likely to produce FF than another? It would be a great help if anyone could explain the partiuclar conditions that create the right sort of environment for FF to occur locally. Does it have to do with relative humidity? direction of source of cold air? How moist the ground is?
Thank you for any helpful explanation.
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