The top is no more than 5 meters higher than the bottom. How is this small difference in height able to make such a remarkable difference in the amount of frost formed?! I have noticed this phenomenon for a couple of days now and am desperate to explain it!

The picture attached shows what I am describing.

Weather across the UK and Western Europe appear to be strongly affected by the position of the jet stream and its involvement in moving storms across the Atlantic.

From what i've read the temperature contrasts between the subtropical and polar air mass along with the corriolis force create a strong wind high up in the atmosphere.  What I want to know is why the jet stream migrates northwards and southwards with the seasons and meanders around a bit?

 I can understand why the jet stream might be slower during the summer as the temperature contrasts between the air massess are lower, but i still dont understand the physics of why it moves.

How do people think the jet stream will respond to climate change?

why does it rain?????

A friend and I were on top off Sgurr Breac NW Highlands, UK, OS grid ref NH158 711 (57 41’ 31”N, 05 05’30”W), altitude 999m on 10 July 2010.  A light  wind was coming from the south east at perhaps 12 -15 mph, the cloud was high and it was mostly sunny, temp around 15C.  We heard what sounded exactly like a flimsy plastic bag blowing from south east to north west and were able to track the sound as it moved across in front of us, about 2 metres away before it disappeared off the cliffs to the north.  There was no sign of leaves or dust moving in a vortex and the short vegetation didn’t move either.  The wind then dropped completely for a couple of minutes before returning the way it had been before.  What was this? Some sort of vortex? 

I have found that when I hang A4 sheets of paper by one thumbtack in the top center of the paper, the sides of the paper curve inwards after a few days. However, when I stuck A4 paper up beside a lightbulb, it didn't curve at all. I was wondering if this was caused by temperature. Is this correct, and if so, why?

I want to know if my Dad had any last thoughts.....  Its been 2 years and I'm not going to be upset - I just need to know.  Thanks!

I photographed several images looking from the Sandbanks peninsular towards Hengistbury Head and beyond with the attached images being the result.  The building do not appear to be anywhere within several miles of the headland in the picture and the distorted rock strata suggest the are a mirage.  What conditions lead to this effect and over what sort of distances can an image be seen?  The additional photos of boats show an inverted and a correct way up image above the sea surface - Is this the resut of the same conditions ?

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If the basic driving force in the atmosphere is a difference between high pressure and low pressure, there should be no driving gradient in the jet stream since it is a continuous flow around the world.