I’m back again for another instalment of my usually skyward-gazing photographs from the skies over a quiet area of Pembrokeshire.
Before I forget, as I will probably, I will mention that I am once again entering the WeatherNet weather photography competition this year. I won a prize last year of, I think, £20 which is no kings ransom I admit, but it was nice to get some input. Mind you, I didn’t think the image I sent was particularly deserving but there we are. This year, I have sent some very nice ones and, whilst I’m no storm chasing pro, I think there’s some pretty awesome cloudscapes. I posted some on here a while back actually….in February this year; take a look. I seem to recall I entitled it the best storm cloud ever. How imaginative.
Anyway, back to the current pictures. The first couple I am not too sure about but I think there was some mild disturbance in the clouds called Kelvin-Helmholtz instability. Now, I never did get science at school so let me introduce Mr Wik E. Pedia with his explanation (all credit to the well-known online encyclopedia);
The Kelvin–Helmholtz instability can occur when there is velocity shear in a single continuous fluid, or where there is a velocity difference across the interface between two fluids. An example is wind blowing over water, the instability manifests in waves on the water surface. More generally, clouds, the ocean, Saturn’s bands, Jupiter’s Red Spot and the Sun’s corona show this instability.
Still confused? Me too. Basically, in this instance, it is waves and undulations in the clouds…
This picture may show things a little more clearly. When people say that air should be treated as a liquid, this is where it all makes a bit more sense!
The next phenomena was a little more “normal” per se but quite nice nonetheless. Just a normal squall mixed with some blue sky and cirrus that I regularly watch and take pictures of to begin with, but I noticed that as I was watching, there was a distinct little “cell” (don’t know if I should refer to it as that to be honest, but for the purposes of the blog I will) off to the left of the frame…
Surprisingly, you could actually see this “cell” moving in a spiral manner. It was admittedly happening veeeeeeeeeeery slowly, but you can actually see in this frame that it looked a little like foamy water in a bath plug. Not quite rotating but nearly….
Pretty much bang overhead now and there is a distinct oval/circle formation here with lumpy cloud in the middle which was probably very mild mammatus, having seen this kind of thing on a larger scale on YouTube…
No rain came down from this over us, but I like to think it may have broken somewhere further away. Once it had moved off the light got better and most of the details were lost for the purpose of photography, which was a shame.
Back to my easy wins then! I love a good sunset and I have caught a good few nice ones of late, as well as some arcs and sundogs that will feature shortly. This one is just down the road in Sardis. Truth be told, I was in the wrong place to catch it properly so I had to make do with the less that ideal foreground. Mind you, I don’t think it’s all that bad…
A few days later, the air was still pretty clear and there were hardly any contrails around, so there was a rare full frame cirrus cloud that I took a snap of. Remember, this is how it appeared at the time, none of your digital manipulation here!
Well, I hope that you found this a good distraction for a few minutes…I enjoyed taking the pictures anyway. I will keep you informed regards the competition but the closing date is late September so you will see another few posts before then.
That reminds me, I really must send the remainder of my shots! See you all soon, thanks for dropping in.